/Investor DB

Department of Energy — Full Portfolio

1,207 tracked investments · page 5 of 7 · listed companies and verified rows first

PARTHIAN ENERGY, LLCparthianenergy.comFeb 2021 · $1.5M

Parthian Energy develops EMIS, an imaging instrument that measures current density inside battery cells to detect defects such as lithium plating that voltage, temperature, and other fast production-line tests miss.

Deep TechEnergyHardware

PARTICLE BEAM LASERS, INC.particlebeamlasers.comJun 2011 · $5.9M
PassiveLogic, Inc.passive-logic.comin𝕏Apr 2018 · $1.6M

PassiveLogic develops a physical AI stack that enables autonomous building infrastructure and control systems, targeting commercial and institutional buildings that consume energy and coordinate operations.

AI & Machine LearningCleantechConstruction TechEnergyEnterprise SoftwarePropTech

PATHWAYS UNITED LLCpathwaysunited.orgJun 2021 · $399.2K
PAULSSON, INC.paulsson.comFeb 2017 · $9.6M

Paulsson provides subsurface surveying and monitoring solutions using fiber optic and distributed sensor technologies for the oil, gas, and environmental sectors.

Deep TechEnergyHardwareIoT

PAX SCIENTIFIC INCpaxscientific.com

PAX Scientific is a fluid dynamics research and design firm that applies principles of natural fluid flow to design efficient industrial equipment and related technologies.

Advanced ManufacturingDeep TechHardware

PC KRAUSE & ASSOCIATES INCpcka.com

PCKA (PC Krause and Associates) provides engineering services, software tools, modeling and simulation facilities, and hardware prototyping and design, specializing in modeling, simulation, analysis, and design of interactive systems.

Deep TechDefense TechHardware

PD3 TECHNOLOGIES, INC.pd3consulting.comJun 2021 · $400K
Pecos Wind Powerpecoswindpower.cominJun 2020 · $1.3M

Pecos Wind Power is an early-stage wind turbine manufacturer developing the PW85, an 85kW distributed wind turbine aimed at supplying clean energy to electric distribution utilities, commercial and industrial businesses, schools and universities, agricultural facilities, and military installations.

CleantechEnergyHardwareSomerville, US

JOSHUA GROLEAU(Executive Officer)in

BoardJAMES FORTE(Director)CAMERON REAGOR(Director)

Co-investorsSWAN Impact Network

PENDAR TECHNOLOGIES LLCpendar.comJun 2021 · $699.7K

Pendar Technologies develops Raman spectroscopy instruments and autonomous chemistry systems for chemical analysis and discovery, including handheld devices for identifying threat materials and tools for real-time reaction kinetics, inspection, authentication, and process control.

Deep TechDefense TechHardware

PERFORMANCE SYSTEMS DEVELOPMENT OF NEW YORK LLCpsdconsulting.cominJun 2020 · $1.2M

PSD combines building science with software tools, engineering services, and training to help utility companies, program implementers, and building performance professionals design energy efficiency programs and achieve energy savings.

CleantechClimate TechEnergy

PERSIMIA LLCpersimia.comJun 2022 · $1.3M

Persimia builds custom autonomous aircraft (drones) and simulation software for aerospace and analysis applications, serving renewable energy developers and wildlife consultancies.

EnergyHardwareRobotics

PHASE III PHYSICS LLCphase3physics.comFeb 2023 · $206.4K

Phase III Physics provides scientific computing and advanced materials R&D infrastructure, delivering physics-informed models, neuromorphic and machine-learning analyses, thin-film coatings, and prototype systems.

AI & Machine LearningDeep TechNew Materials

PHASE SENSITIVE INNOVATIONS INCphasesensitiveinc.comJul 2019 · $200K

Phase Sensitive Innovations develops RF photonic devices, components, and systems for millimeter-wave imaging and wireless communications.

Deep TechDefense TechHardware

PHASE3 PHOTOVOLTAICS INCphase3pv.comJul 2019 · $1.2M

Phase3PV provides design, procurement, permitting, and installation services for residential solar systems, serving solar installers and distributors with expertise in product design, supply chain management, regulatory compliance, and factory-scale installation optimization.

CleantechConstruction TechEnergyHardware

PHOENIX ANALYSIS & DESIGN TECHNOLOGIES INCpadtinc.comin

PADT (Phoenix Analysis and Design Technologies) is an engineering services and products company focused on simulation, product development, and 3D printing, serving customers across industries including aerospace and medical devices.

Advanced ManufacturingDeep TechEnterprise SoftwareHardwareTempe, US

Mark Johnson

PHOSPHORTECH CORPORATIONphosphortech.cominFeb 2012 · $3.7M

PhosphorTech designs and develops customized LED lighting solutions and phosphor materials for applications ranging from consumer fixtures to specialized scientific and industrial uses.

Advanced ManufacturingCleantechDeep TechHardwareNew Materials

PHOTIA INCphotiatech.comJul 2018 · $150K
PHOTODIGM INCphotodigm.comin𝕏

Photodigm develops high-performance laser technology and photonics solutions for industrial applications including sensing, precision measurement, materials processing, and advanced manufacturing.

Advanced ManufacturingDeep TechHardwareQuantum ComputingSemiconductorsRichardson, US

Bill Stuart(CEO)

PHOTON SCIENCES, INCORPORATEDphotonsciences.comJul 2018 · $350K

Dallas Quantum Devices and its subsidiary Photon Sciences design custom photonic and VCSEL laser solutions for demanding applications, using a network of outsource manufacturing partners.

Deep TechHardwareSemiconductorsDallas, US

PHOTOTHERMAL SPECTROSCOPY CORP.photothermal.comMay 2019 · $2.6M
Physical Optics Corporationpoc.comJun 2011 · $51.4M

Co-investorsInvestcorp

PHYSICAL SCIENCES INC.psicorp.comFeb 2012 · $52M

Physical Sciences Inc.

Deep TechDefense TechNew Materials

Physics Mathphysics-math.comAug 2011 · $2.6M
PIASECKI AIRCRAFT CORPpiasecki.cominJul 2023 · $199.9K

Piasecki Aircraft Corporation designs, manufactures, and flight-tests experimental rotorcraft and unmanned aerial vehicles for defense and research applications.

Deep TechDefense TechHardwarePhiladelphia, US

John Weyerhaeuser Piasecki(President and Chief Executive Officer)Frederick Weyerhaeuser Piasecki(Chairman of the Board and Chief Technology Officer)

Picogridpicogrid.comin𝕏Jul 2023 · $191.3K

Picogrid provides software and edge computing networks to integrate heterogeneous sensors, drones, and autonomous systems for real-time command and control across defense and wildfire detection applications.

AI & Machine LearningDefense TechGovTechIoTRoboticsEl Segundo, US

Zane Mountcastle(Executive Officer, Director, Promoter)inMartin Slosarik(Executive Officer, Director, Promoter)in

BoardDavid Cowan(Director)in

Co-investorsAlumni VenturesBasecamp FundBessemer Venture PartnersInitialized CapitalWashington Harbour PartnersCredo Ventures+2 more

PICOYUNEpicoyune.comJun 2020 · $199.9K

Picoyune manufactures portable chemical sensor devices that simplify environmental monitoring for industrial processes.

CleantechDeep TechHardwareIoTBerkeley, US

Jay James(CEO)Jeffrey Crosby(CTO)

PIONEER ASTRONAUTICSpioneerastro.comJun 2020 · $1.4M

A gambling affiliate site that ranks and reviews U.S.-facing online casinos based on payout speed, bonus terms, payment methods, and licensing.

ConsumerMedia & Entertainment

PIONEER ENERGY INCpioneerenergy.comJun 2021 · $249.8K

Pioneer Energy manufactures field gas conditioning systems that remove water and heavy hydrocarbons from raw well gas to produce high-quality fuel for oil and gas production facility equipment.

CleantechClimate TechEnergyHardwareColorado, US

Eyal Aronoff(CEO)Joseph E Palaia IV(VP of Business Development)

Pitch Aeronauticspitchaero.comin𝕏Jul 2023 · $200K

Pitch Aeronautics provides a weather intelligence platform for electric utilities, combining line-mounted sensors (WireWarrior), drone-based deployment (Astria), and an AI platform (WireWeather) that produces probabilistic weather forecasts.

Advanced ManufacturingAI & Machine LearningCleantechClimate TechEnergyPropTechBoise, US

Zachary Adams(Chief Executive Officer)Ian Gibson(President)inDavid Bennett(Director)

BoardPhilip A Bradley(Director)

Co-investorsTechstars

PIXELEXX SYSTEMS, INCpixelexx.comJul 2019 · $2.7M

Chicago, US

Keith Crandell(Director)Narbeh Derhacobian(Director)Gregory Johnson(Director)Samuel Wickline(Director)Kenneth Bradley(Executive Officer, Director)David Cruikshank(Executive Officer, Director)

Pixelligentpixelligent.comin𝕏Nov 2012 · $4.1M

Pixelligent develops nanocrystal materials that enhance optical performance in photonics, augmented reality, displays, sensors, and optical systems.

Advanced ManufacturingDeep TechHardwareNew MaterialsBaltimore, US

Craig Bandes(President & CEO)Tom Werthan(Executive Officer)inCraig Mintz(Executive Officer)inSerpil Gonen Williams(Chief Technology Officer)inGregory Cooper(Executive Officer, Director)in

BoardPeter Kirlin(Director)

Co-investorsTCP Venture Capital

PLANT SENSORY SYSTEMS, LLCplantsensorysystems.com

Plant Sensory Systems develops agricultural treatments that improve crop yield and performance.

AgTechBiotech

Plasma Processes, LLCplasmapros.comAug 2011 · $14.5M

Plasma Processes operates manufacturing facilities specializing in advanced materials processing and additive manufacturing technologies, serving aerospace and defense customers with capabilities including molten salt electrodeposition, plasma spray systems, and laser-based manufacturing.

Advanced ManufacturingDeep TechDefense TechHardwareNew MaterialsSpace TechHuntsville, US

Co-investorsBlue Sea Capital

PLC CONNECTIONSplcconnections.comFeb 2017 · $2.9M

PLC Connections manufactures optical coupling components called transposers that enable dense fiber-to-photonic integrated circuit (PIC) connections.

Advanced ManufacturingDeep TechHardwareSemiconductors

Michael O'Brian(Chief Operating Officer)

POLARIS SENSOR TECHNOLOGIES INCpolarissensor.comJun 2012 · $998.4K
POLARON TECHNOLOGIES, INC.polaronanalytics.cominFeb 2019 · $224.9K

Polaron Analytics provides data analytics platforms, machine learning solutions, and engineering services to government agencies including the Air Force, Navy, NASA, and Department of Energy.

AI & Machine LearningCybersecurityData & InfrastructureDefense TechGovTech

Dr. Rahul Bhowmik(Founder)Doug BrookJames GateauDr. Sushant JhaDr. Lokendra Poudel

POLARONYX INCpolaronyx.comJun 2011 · $10.1M
Polestar Technologies, Inc.polestartech.cominJun 2016 · $1.1M

Polestar Technologies develops optical sensing and monitoring systems for research, industrial, and commercial applications, serving biopharmaceutical, medical, defense, and food and beverage sectors.

BiotechDeep TechHardwareIoTMedical Devices

POLLERE, INC.pollere.netFeb 2013 · $1M

Pollere LLC provides network and telecommunications consulting services, offering technical expertise in internet architecture and network science to clients in the telecommunications and networking industries.

Cloud ComputingCybersecurityData & InfrastructureDeveloper ToolsEnterprise Software

Kathleen M. Nichols(Founder and CEO)

POLYK TECHNOLOGIES LLCpiezopvdf.comFeb 2014 · $150K

Piezo PVDF manufactures specialized polymer materials and components, including PVDF films, terpolymers, and sensors for applications in energy storage, thermal management, piezoelectric actuators, and medical devices.

Deep TechE-commerceHardwareNew Materials

POLYKALA TECHNOLOGIES LLCpolykalatech.comFeb 2021 · $1.6M

Polykala Technologies develops novel materials and technologies for clean energy and water applications, including critical minerals recovery, hydrogen production, electrochemical cells, and wastewater treatment membranes.

CleantechClimate TechDeep TechNew MaterialsRichland, US

Dr. Mark Feng(Founder)

POLYMATERIALS APP, LLCpolymaterialsapp.cominJun 2020 · $206.4K

PolyMaterials App develops advanced material technologies and energy storage solutions, including supercapacitor technology, supported by multiple U.S. government research and development grants from defense and energy agencies.

AI & Machine LearningDeep TechEnergyHardwareMobility & TransportationNew MaterialsTampa, US

Dr. Manoj Ram(CEO)

PORTABLE SOLAR INCna.com𝕏Jul 2023 · $200K

North American Corporation is a distributor of janitorial and maintenance supplies, industrial packaging materials and equipment, and foodservice disposables, offering customized supply solutions to businesses.

Advanced ManufacturingLogistics & Supply Chain

POSPEA LLCpospea.comJun 2022 · $1.3M
POWDERMET INCpowdermetinc.comin𝕏Feb 2012 · $5.3M

Powdermet develops advanced materials with nano-scale engineered features to reduce weight, resource consumption, and environmental impact while improving energy efficiency across various applications.

Advanced ManufacturingCleantechDeep TechNew MaterialsEuclid, US

Andrew Sherman

Power Fingerprintingpowerfingerprinting.comJun 2017 · $150K

Vienna, US

Carlos R. Aguayo Gonzalez(Executive Officer, Director)Gordon R. England(Director)Jeffrey Reed(Director)Joaquin J. Hangen(Director)James Cheng(Director)Steven C. Chen(Executive Officer, Director)

POWER INFO LLCpowerinfo.usJun 2011 · $2.1M

Develops standards-based software for the electric power industry, specializing in CIM-based power system modeling, model exchange, and external network modeling.

Data & InfrastructureEnergySaaS

POWERFILM INCpowerfilmsolar.comin𝕏

PowerFilm designs and manufactures custom solar panels, including thin-film amorphous silicon and semi-flexible crystalline technologies, for commercial, government, and OEM applications.

CleantechDefense TechEnergyHardware

Powers & Zahr, LLCpowers-zahr.comApr 2018 · $224.1K
PRECISION COMBUSTION, INC.precision-combustion.comin𝕏Jun 2011 · $19.6M

Precision Combustion develops advanced catalytic reactors and combustion systems for fuel processing, power generation, emission control, and air purification across aerospace, energy, and industrial applications.

Advanced ManufacturingCleantechClimate TechDeep TechDefense TechEnergyHardwareNorth Haven, US

PREMINON, LLCpreminon.comFeb 2017 · $212.8K
PRESCIENT WEATHER LTDprescientweather.comFeb 2014 · $1.5M

Prescient Weather provides weather and climate forecasting products, including the World Climate Service for sub-seasonal to seasonal forecasts and CropProphet, a statistical system forecasting U.S. crop yield and production from weather, satellite, and field survey data.

AgTechClimate TechData & Infrastructure

Prime Photonics, LCprimephotonics.comFeb 2015 · $449.5K
PRIME SOLUTIONS GROUP, INCORPORATEDpsg-inc.netin𝕏Feb 2016 · $1.2M

PSG provides systems engineering, software development, and data science services focused on complex system-of-systems design, high-volume sensor data management, and analytics for defense and energy sectors.

AI & Machine LearningData & InfrastructureDeep TechDefense TechEnergy

Joseph Marvin(Chief Value Officer)Robert Reed(President)Michael McGuire(Chief Operating Officer)Marvin Kleine(Chief Technology Officer)Mike Dezember(Chief Strategy Officer)

Princeton Optronicsprincetonoptronics.comJun 2014 · $5.2M
Prisere Llcprisere.comin𝕏Jul 2018 · $149.9K

Prisere develops technology to help businesses build resilience against extreme hazards and disasters, and to expand access to insurance with premiums reduced for better risk practices.

Climate TechInsurTechSaaS

Donna Childs(Founder)

PRIXARC LLCprixarc.comApr 2018 · $2.1M
PRODUCT INNOVATION AND ENGINEERING LLCmopine.cominFeb 2016 · $3.5M

Mopine develops hardware and software solutions for advanced manufacturing, including its MiniTensile product line.

Advanced ManufacturingDeep TechHardware

ProjectEconomicsprojecteconomics.netJun 2016 · $1.1M

Provides software and APIs for managing community renewable energy programs, including subscriber CRM, billing data integration, customer onboarding, and net metering credit allocation.

CleantechEnergySaaS

PROJEO CORPprojeoco.comJun 2020 · $199.8K
PROPORTIONAL TECHNOLOGIES, INC.proportionaltech.cominFeb 2013 · $6.5M

Proportional Technologies develops neutron detection systems using boron-coated straw (BCS) technology as a replacement for expensive helium-3 detectors, serving security, nuclear weapons detection, and scientific research applications.

Deep TechDefense TechHardwareAngleton, US

Jeffrey L. Lacy(Founder, Ph.D.)

PROTECTION ENGINEERING CONSULTANTS LLCprotection-consultants.comin𝕏Feb 2013 · $349.9K

Protection Engineering Consultants is an engineering and consulting firm providing protective design, research, and safety services for personnel, structures, vehicles, and infrastructure against hazards for commercial and government clients.

Deep TechDefense TechEnterprise SoftwareGovTech

Kirk MarchandDavid StevensCharles Oswald

Protium Company, Theprotium.aeroJun 2021 · $178K
Protochipsprotochips.comFeb 2023 · $1M

Morrisville, US

David P. Nackashi(Director, Executive Officer)inJohn Damiano, Jr.(Director, Executive Officer)Michael Zapata, III(Director, Executive Officer)Steve Capps(Director)Rajeev Kulkarni(Director)

Co-investorsNC IDEA

Proton Energy Systems, Inc.protonenergy.comAug 2011 · $7M
Pseudolithicpseudolithic.comin𝕏Jun 2022 · $1.3M

PseudolithIC develops mm-wave RF components including power amplifiers, low-noise amplifiers, and transmit/receive front-ends, using heterogeneous integration of compound semiconductors and silicon.

Deep TechHardwareSemiconductorsSanta Barbara, US

Dr. Florian Herrault(Chief Operating Officer and Co-founder)Prof. James Buckwalter(CEO, Co-founder)

Co-investorsEntrada VenturesFoothill VenturesUncork Capital

PUMPKINSEED TECHNOLOGIES INCsites.google.comApr 2018 · $150K

Co-investorsOssian Capital

Pyrancopyranco.cominJul 2019 · $199.9K

Pyran produces 1,5 PDO (pentanediol), a 5-carbon diol made from renewable agricultural feedstocks using a proprietary chemical process, as an alternative to petroleum-derived diols.

Advanced ManufacturingAgTechCleantechNew MaterialsMadison, US

KEVIN BARNETT(CTO and Secretary)inMELVIN L LUETKENS JR.(Chief Executive Officer)

BoardPETER CHIDYLLO(Director)ANDREW SHAFER(Director)WILLIAM BANHOLZER(Director)THIERRY CASIEZ(Director)

Co-investorsTundra AngelsWisconsin Investment Partners

Q-CHEM INCq-chem.comin𝕏Feb 2014 · $2.3M

Q-Chem is an ab initio quantum chemistry software platform that enables faster and more accurate computational modeling for applications in pharmaceuticals, materials science, and biochemistry.

AI & Machine LearningDeep TechNew MaterialsSaaS

Q-FLEX INCqflexinc.comFeb 2021 · $1.3M

Q-Flex manufactures flexible printed circuit boards and related circuitry for customers across various industries.

Advanced ManufacturingHardwareSpace TechFullerton, US

Q-PEAK, INCORPORATEDqpeak.comJun 2011 · $7.3M
Qcoefficient Incqcoefficient.comJul 2018 · $1.1M

QCoefficient offers EMeister MPC, software that uses the drywall and concrete of large commercial buildings as thermal energy storage to manage daily thermal load and cut cooling-season energy costs by around 30% without added equipment.

CleantechClimate TechEnergy

QM Powerqmpower.cominJun 2011 · $300K

QM Power designs high-efficiency electric motors and patented motor control technologies for refrigeration, HVAC, and high-torque applications such as electric vehicles, micro-mobility, aviation, and medical devices.

CleantechHardwareMobility & TransportationLee'S Summit, US

C. Joseph Flynn(Chief Technology Officer and Director of the Issuer)inPatrick J. Piper(Executive Officer, Director)

BoardBoris Ryabov(Director)Mark Austin(Director)

QRONA TECHNOLOGIES LLCqronatech.comFeb 2020 · $600K
QUALITY SWITCH INCqualityswitch.comJul 2019 · $1.3M

Quality Switch manufactures de-energized tap changers and switches for transformer manufacturers serving utility and industrial markets.

Advanced ManufacturingEnergyHardwareWarren, US

Horace SewellLarry Dix(Executive Director)

QUALTECH SYSTEMS, INC.teamqsi.comJul 2019 · $206.3K

TEAMS-Designer is a graphical modeling and testability analysis software that enables test and design engineers to diagram system structures, behaviors, failure modes, and dependencies for complex electro-mechanical systems.

Advanced ManufacturingAI & Machine LearningDeep TechDeveloper ToolsEnterprise SoftwareIoTSaaS

QUANTITATIVE BIOSCIENCES, INC.qbisci.cominApr 2018 · $8.4M

Quantitative BioSciences develops biosensor and immunoassay solutions using microfluidics, synthetic biology, and machine learning for scientific research and government applications.

AI & Machine LearningBiotechDeep TechHardware

Natalie Cookson(Co-founder & CEO)Michael Ferry(Co-founder & CSO)

QUANTUM APPLIED SCIENCE & RESEARCH INCquasarusa.com

QUASAR develops dry biosensing hardware and software for monitoring cognitive and physiological states without gels or adhesive pads.

AI & Machine LearningHardwareHealthtechMedical DevicesUSA, US

Quantum Simulation Technologies, Inc.qsimulate.comFeb 2022 · $250K

Platform for high-throughput material property simulation based on quantum mechanics.

Cambridge, US

Toru Shiozaki(CEO and Co-Founder)

BoardGuanhua Chen(Director)Garnet Chan(Chief Visionary Advisor and Co-founder)

Co-investorsAbies VenturesEmbark VenturesKyoto University Innovation CapitalUTokyo Innovation Platform Co. Ltd.2xN

QUANTUM TECHNOLOGY SCIENCES, INC.qtsi.comJun 2015 · $1Macquired by Geospace Technologies

Quantum Technology Sciences designs and manufactures geophysical technology using seismic-acoustic sensors to provide real-time situational awareness for border security, critical infrastructure protection, and military defense applications.

Deep TechDefense TechHardwareCocoa Beach, US

Mark Tinker(Executive Officer, Director)Freddie Garcia(Executive Officer, Director)

BoardScott Tinker(Director)James McNulty(Director)

QUANTUM VENTURA INCquantumventura.comJul 2019 · $4.5M
Qubitekkqubitekk.comin𝕏Feb 2019 · $1.9M

Vista, US

Dennis Duncan Earl(Executive Officer, Director)Stanley Ellis(Executive Officer, Director, Promoter)

QUEST RENEWABLES INCquestrenewables.comJul 2019 · $2.4M
QUESTEK INNOVATIONS LLCquestek.cominJun 2011 · $13.1M

QuesTek provides Integrated Computational Materials Engineering (ICME) solutions to accelerate the design, development, and certification of novel materials.

Advanced ManufacturingAI & Machine LearningDeep TechNew MaterialsChicago, US

Greg OlsonCharlie KuehmannRay GenellieCharlie West

Qunnectqunnect.incin𝕏Feb 2019 · $3.8M

Qunnect develops room-temperature hardware for building scalable quantum networks over existing telecommunications infrastructure.

Deep TechHardwareQuantum ComputingBrooklyn, US

Mael Flament(Executive Officer, Director, Promoter)inMehdi Namazi(Executive Officer, Promoter)inEDEN FIGUEROA(CSO & MANAGER)Noel Goddard(Executive Officer, Director)in

BoardNicole Conner(Director)inMark Tolbert(Director)

Co-investorsCisco InvestmentsMEDINA VENTURESQuantonationAirbus Ventures

R H K TECHNOLOGY, INC.rhk-tech.comin𝕏Jun 2011 · $150K

RHK Technology manufactures PanScan, a scanning tunneling and atomic force microscope system designed for atomic-resolution imaging in extreme environments and low temperatures.

Deep TechHardwareNew Materials

Adam Kollin(Founder)Kenneth Kollin(General Manager)Benjamin Kollin(Production Manager)Shuheng Pan(Original Developer)

R-display & Lighting LLCr-displayandlighting.comJul 2019 · $200K

R-Display & Lighting develops advanced emitter materials for organic light-emitting diode (OLED) panel manufacturing, leveraging expertise in materials design, device fabrication, and manufacturing operations.

Advanced ManufacturingDeep TechHardwareNew Materials

Tommie L. Royster(CEO and Founder)Shihua Chen(VP of Material Operations)

RADIABEAM TECHNOLOGIES, LLCradiabeam.cominJun 2011 · $93.8M

RadiaBeam designs, manufactures, and tests accelerator components and systems, including e-beam sources, linac components, and custom optical and RF systems.

Advanced ManufacturingDeep TechHardwareMedical DevicesSanta Monica, US

Sergey Kutsaev

Radiantradiantnuclear.comin𝕏Jun 2022 · $1.3M

Radiant Nuclear develops Kaleidos, a portable nuclear microreactor designed to replace diesel generators for remote locations and provide resilient backup power to hospitals, datacenters, and military installations.

Deep TechEnergyHardwareEl Segundo, US

Doug Bernauer(Founder)inBob Urberger(Founder)in

Co-investorsAcequia Capital (AceCap)Align VenturesAndreessen HorowitzBeyond CapitalCantos VenturesCarbon+27 more

RADIASOFT LLCradiasoft.netinFeb 2014 · $29.9M

RadiaSoft develops simulation and control software for particle accelerators and beam physics systems.

Cloud ComputingDeep TechDeveloper ToolsSaaSBoulder, US

Jonathan Edelen(President and CEO)inDavid L. Bruhwiler(Principal Scientist, Chairman of the Board)in

RADIATION DETECTION & IMAGING TECHNOLOGIES LLCradiationimaging.comin𝕏Mar 2016 · $1.1M

RDI designs and manufactures radiation detector arrays and quality assurance instruments for cancer radiotherapy, including proton therapy systems.

AI & Machine LearningHardwareHealthtechMedical DevicesPhoenix, US

Dr. Evgeny Galyaev(Founder and CEO)

RADIATION DETECTION TECHNOLOGIES, INC.radectech.comFeb 2013 · $6.7M

RDT manufactures the Domino®, a compact neutron detector with high efficiency and minimal gamma-ray sensitivity for applications in security, medical imaging, and scientific research.

Deep TechDefense TechEnergyHardwareSemiconductorsManhattan, US

Steve Bellinger(PhD, CEO)Ryan Montag(PhD, Nuclear Engineer)

RADIATION MONITORING DEVICES, INC.rmdinc.comin𝕏Jun 2011 · $141.7M

RMD develops radiation detection and imaging systems, including scintillators, detectors, and X-ray imaging devices for nuclear security, medical imaging, and defense applications.

Deep TechDefense TechHardwareMedical DevicesNew Materials

Matthew Dallimore(President)Vivek Nagarkar(Vice President, Research & Development)Michael Squillante(Vice President, Research & Development)Martin Waters(Vice President, Program Management)Patricia McLaughlin(Vice President, Finance)Dr. Gerald Entine

Radiometrics Corporationradiometrics.comin𝕏

Radiometrics develops weather monitoring and decision support systems using radiometer and radar technologies for aviation, renewable energy, and meteorological applications.

Climate TechDeep TechHardwareIoTBoulder, US

Eric Plomondon(President / CEO / COO)

RADTRAN LLCradtran.comFeb 2020 · $194.5K

RadTran develops technology to extract and produce radioactive isotopes (Ra-224 and Ac-225) from naturally occurring thorium for use in targeted alpha therapy cancer treatments.

BiotechDeep TechEnergyHealthtechMedical DevicesNew Materials

Saleem Drera(Chief Executive Officer & Founder)Andy Edwards(Chief Technical Officer)

Rayonixrayonix.comin𝕏Feb 2017 · $8.9M

Rayonix manufactures X-ray area detectors for diffraction applications, serving synchrotrons and laboratory environments for crystallography and materials science research.

Deep TechHardwareNew MaterialsEvanston, US

RAYTUM PHOTONICS LLCraytum-photonics.comFeb 2017 · $6.1M
RCAM TECHNOLOGIES INCrcamtechnologies.comJun 2022 · $600K

RCAM Technologies develops 3D concrete printing (3DCP) technology to manufacture marine infrastructure locally and at scale, including anchoring systems for ocean energy installations.

Advanced ManufacturingCleantechEnergy

Rct Systems, Inc.rct-systems.comJun 2020 · $2.1M
REACTION 35 LLCreaction35.cominFeb 2016 · $1.3M

Reaction35 develops proprietary chemical processes that recover and reuse valuable components from industrial waste streams, converting low-value waste into higher-value products.

Circular EconomyCleantechNew MaterialsSanta Barbara, US

REACTION ENGINEERING INTERNATIONALreaction-eng.comAug 2011 · $8.9M

Reaction Engineering International is an R&D consulting firm providing energy and defense solutions to government agencies, utilities, and industrial clients.

Deep TechDefense TechEnergyMidvale, US

REACTION SYSTEMS, INC.reactionsystemsllc.comFeb 2016 · $349.6K
REACTIVE INNOVATIONS, LLCreactive-innovations.comFeb 2014 · $4.6M
REAL-TIME INNOVATIONS, INC.rti.comin𝕏Feb 2013 · $2.5M

RTI is the world's largest DDS (Data Distribution Service) supplier providing Connext, a real-time data streaming platform for intelligent physical systems including autonomous vehicles, medical devices, robotics, and industrial automation.

Data & InfrastructureDeep TechDefense TechEnterprise SoftwareIoTRoboticsSunnyvale, US

Stan Schneider(CEO)Gerardo Pardo(CTO)

Rebound Technologiesrebound-tech.cominJun 2015 · $139.7K

Rebound Tech develops adaptive cooling infrastructure for industrial facilities dealing with high cooling demand, peak energy charges, and humidity control.

CleantechEnergyHardwareCommerce City, US

Russell Goldfarbmuren(Executive Officer, Director)inRussell Muren(Executive Officer, Director)Kevin Davis(Executive Officer, Director)in

BoardMatthew Coleman(Director)John Fox(Director)inWilliam Temple Withers Fennell(Director)

Co-investorsAutodesk FoundationClean Energy VentureClean Energy VenturesE8 AngelsiSelect FundSkyview Ventures+2 more

REFINED IMAGING, LLCrefinedimagingllc.comApr 2018 · $149.8K

Refined Imaging develops advanced X-ray and neutron imaging systems using interferometry and grating-based technologies for radiography and computed tomography applications.

Advanced ManufacturingCybersecurityDeep TechHardwareMedical DevicesBaton Rouge, US

Dr. Leslie ButlerDr. Jost GoettertCharles Hartman(Managing Member)

RELIACOAT TECHNOLOGIES, LLCreliacoat.comJun 2015 · $374.9K

Reliacoat develops in-situ coating sensors and optimization software for particle injection processes in manufacturing environments.

Advanced ManufacturingDefense TechHardwareNew MaterialsBohemia, US

RELOGIC RESEARCH, INC.relogicresearch.cominFeb 2022 · $254.5K

ReLogic is an SBA 8(a) certified manufacturer providing precision CNC machining and advanced composite fabrication for aerospace and defense contractors.

Advanced ManufacturingDeep TechDefense TechHardware

REM CHEMICALS, INC.remchem.comJul 2023 · $198K
REMCOM INCremcom.comin𝕏Feb 2017 · $202.9K

Remcom offers electromagnetic simulation consulting and custom software development services to organizations that need expert EM modeling and analysis without maintaining in-house resources.

Deep TechDefense TechDeveloper ToolsEnterprise SoftwareHardwareSaaSState College, US

RENASCENT ENERGY MANAGEMENT LLCrenascentenergy.usJun 2021 · $450K

Renascent Energy is a technology-focused energy company that uses patent-pending Enhanced Geothermal Systems (EGS) and thermal enhanced recovery methods to produce energy from existing, dormant, or depleted shale wells rather than drilling new ones.

CleantechClimate TechEnergyHouston, US

RenewCO2renewco2.cominFeb 2020 · $1.6M

RenewCO₂ develops an electrocatalytic carbon utilization technology (eCUT) that converts waste CO₂ from industrial emissions into chemicals and fuels using only water and electricity and a patented catalyst.

CleantechClimate TechNew MaterialsSomerset, US

Karin Calvinho(Co-founder & CTO)inAnders Laursen(Co-founder & CEO)inG. Charles Dismukes, PhD(Co-founder and Chair of the Advisory Board)

BoardNeal Dikeman(Director)in

Co-investorsEnergy Transition Ventures

RESCUE ROVER LLCalphabravo.ioFeb 2022 · $237K

AlphaBravo provides a Kubernetes management platform for air-gapped, disconnected, and classified networks, consisting of Ghost (FIPS 140-3 validated, signed, hardened container images), Pioneer (multi-distribution cluster deployment and Day 2 operations), Astronomer (multi-cluster fleet management), and Charlie (an on-prem AI operator with no external API calls).

Cloud ComputingCybersecurityDefense Tech

Resensys LLCresensys.comin𝕏Jun 2022 · $198K

Resensys develops wireless sensor networks for remote monitoring of structural health in infrastructure assets like bridges, tunnels, buildings, and dams.

Construction TechHardwareIoT

Reservoirreservoir.comJun 2011 · $20.9M

The smartest water heater for your home

Co-investorsScript CapitalAsymmetric Capital PartnersFounder Collective

RESILIENCE ANALYTICS LLCresilienceanalytics.cominJul 2023 · $1.3M

Dara Systems builds stress-testing methodologies and decision-support tools that help infrastructure operators, federal agencies, and international bodies assess and improve resilience across complex systems including critical infrastructure, cyber systems, and supply chains.

AI & Machine LearningClimate TechDefense TechEnterprise SoftwareGovTech

Benjamin Trump(Chief Executive Officer)Josh Trump(Technical Lead - Stress Testing)

Resilient Power Systemsresilientpower.cominJun 2021 · $1.3M

CleantechDecatur, US

Co-investorsEnergy Transition VenturesTechstars

RESILIENTGRID INCresilientgrid.cominJun 2020 · $200K

ResilientGrid develops software solutions for electric grid operators to enhance operational performance and system resilience during both routine operations and emergencies.

EnergyEnterprise SoftwareSaaSAustin, US

RESODYN CORPORATIONresodyn.comin𝕏Jun 2017 · $4.4M

Resodyn Corporation is a research and development company that engineers and manufactures technology products and provides engineering and manufacturing services, developing solutions through public grants (such as SBIR) and private R&D contracts.

Advanced ManufacturingDeep TechHardware

RESOLUTE MARINE ENERGY, INC.resolutemarine.comin𝕏Jun 2017 · $3.9M

Resolute Marine develops ocean wave-powered desalination technology to produce fresh water in coastal regions of developing countries and small island states where conventional large-scale plants are economically unfeasible.

CleantechClimate TechEnergyImpact & Social GoodBoston, US

RESONO PRESSURE SYSTEMS, INC.resonopressuresystems.comJul 2018 · $150K

Resono designs and manufactures dynamic pressure measurement systems for aerodynamic testing applications including wind turbines, automotive, and flight testing.

Advanced ManufacturingDeep TechHardwareIoTLaramie, US

RESONON, INC.resonon.comin𝕏Feb 2015 · $3.3M

Resonon manufactures hyperspectral imaging cameras and software for scientific and analytical applications.

AI & Machine LearningDeep TechHardwareHanover, US

Resource Fiber LLCresource-fiber.comJul 2019 · $198.7K

Co-investorsE8 Angels

RESPEC Company, LLCrespec.cominJun 2014 · $2.9M

RESPEC is an employee-owned engineering, applied science, and technology firm whose specialists provide solutions in areas including water resources, clean energy, digital transformation, smart infrastructure, and mining and energy.

CleantechConstruction TechData & InfrastructureDeep TechEnergyEnterprise SoftwareUnknown - Page does not state headquarters city, CA

Jason Love(Chief Executive Officer/President)Phil Welling(Chief Financial Officer/Treasurer)Jason Miller(Chief Administrative Officer)Russell Persyn(Chief Operating Officer)

RIDGETOP GROUP INCridgetopgroup.cominJun 2011 · $3.3M

Ridgetop Group is an engineering and technology firm specializing in condition-based maintenance, prognostic health management, and integrated vehicle health management solutions for mission-critical applications in aerospace, defense, transportation, energy, and industrial sectors.

AI & Machine LearningCleantechDeep TechDefense TechEnergyIoTNew MaterialsTucson, US

RIKARBON INCrikarbon.comJul 2018 · $4.1M
RIVER CONNECTIVITY SOLUTIONS LLCriverconnectivitysystems.comJun 2022 · $413K

River Connectivity Systems develops adaptive technologies for reservoir operations, water quality management, and hydropower optimization.

CleantechEnergyHardware

Andrew Peters(Founder and Director)

RJ LEE GROUP INCrjlg.comin

RJ Lee Group is a scientific consulting firm and industrial forensics laboratory that provides materials and environmental testing, including petrographic analysis, chemical testing, and expert witness services.

CleantechDeep TechNew Materials

RMCI, INCrmci-inc.comJun 2015 · $154.8K
RNET TECHNOLOGIES INCrnet-tech.comAug 2011 · $12.7M

RNet Tech develops computational tools for biomedical research and diagnostics.

AI & Machine LearningBiotechCloud ComputingDeep TechDefense TechMedical DevicesDayton, US

ROBOT NOSE CORProbotnose.netFeb 2019 · $2.9M

Robot Nose develops advanced sensor and detection technology leveraging expertise in photochemistry, physics, and instrumentation.

AI & Machine LearningDeep TechHardware

Jerome Moore(Founder and President)

ROCHESTER SCIENTIFIC LLCrochesterscientific.comFeb 2022 · $200K
ROCKETRUCK INCrocketruck.comJun 2022 · $1.8M
Rocky Researchrockyresearch.com

Rocky Research is an engineering firm that designs, prototypes, and tests thermal management products such as heating, cooling, and refrigeration systems for commercial, industrial, and defense applications.

Deep TechDefense TechHardware

ROI Engineering LLCroi-engineering.netJun 2020 · $198.8K

ROI Engineering is a system integrator that designs, develops, and installs industrial control systems for clients across various industries, emphasizing project management and customer service.

Advanced ManufacturingEnterprise SoftwareHardware

Rolling Energy Resourcesrollingenergyresources.com𝕏Jun 2022 · $200K

ev.energy operates a cloud-based platform that optimizes and coordinates charging for electric vehicles alongside home solar and battery systems.

Boulder, US

Scott Dimetrosky(Founder)inJon Koliner(Founder)Nick Woolley(CEO, Co-Founder)in

Rrtcrrtc-tech.comFeb 2017 · $155K

Belle Mead, US

Richard E. Riman(Executive Officer, Director)

BoardSwee Lian Woo(Director)David H. Wells(Director)Ming Woo(Director)

Rute Foundation Systems, Incorportedrutefoundations.cominJun 2021 · $200K

RUTE manufactures precast, post-tensioned wind turbine foundations under the brand name BXG Box Girder, engineered to reduce concrete volume, installation time, and lifecycle carbon emissions.

Advanced ManufacturingCleantechClimate TechEnergyHardwareImpact & Social GoodGranite Falls, US

Safi Techsafi-tech.comJun 2020 · $400K

SAFI-Tech develops supercooled solder pastes for electronics manufacturing and assembly.

Advanced ManufacturingHardwareNew Materials

Dr. Ian Tevis(Co-Founder, President, CTO)Dr. Martin Thuo(Co-Founder, CSO)

Co-investorsRhapsody Venture Partners

SAHT ENERGY LLCsahtenergy.comJun 2020 · $1.3M
Samraksh Company, Thesamraksh.comFeb 2012 · $1.3M
SANDBOX SEMICONDUCTOR INCORPORATEDsandboxsemiconductor.comin𝕏Apr 2018 · $224.7K

Sandbox Semiconductor provides a physics-based process intelligence platform for semiconductor manufacturing that uses AI and machine learning to optimize process development and production workflows.

Advanced ManufacturingAI & Machine LearningDeep TechSemiconductorsAustin, US

Sasyasasyabio.comFeb 2016 · $150K

Sasya Bio is an animal nutrition and health company that uses fermentation and microbial genetics to produce dietary supplements aimed at improving animal performance and profitability.

AgTechBiotechFoodTechSt. Paul, US

Goutham Vemuri(Executive Officer, Director)

SAVENGY TECHNOLOGIES LLCsavengy.comJun 2016 · $550K

Savengy manufactures water distillers in various capacities (5 and 100 gallons per day) and develops advanced cooling devices using carbon foam enhanced condensers for thermal management applications.

Advanced ManufacturingCleantechClimate TechEnergyHardware

SC SOLUTIONS, INC.scsolutions.cominFeb 2016 · $2.1M

SC Solutions provides custom process control, physics-based modeling, and structural engineering services for the semiconductor, advanced materials, energy, aerospace, and defense industries.

Construction TechDeep TechSemiconductorsSunnyvale, US

Gregory Loy(Co-founder & former CEO/President, Chairman of the Board)Chris Larsen(Chief Executive Officer & President)

SCIENTIFIC SYSTEMS CO INCssci.comin

Scientific Systems develops software-defined solutions for crewed and uncrewed systems to enable navigation, collaboration, and orchestration across multiple domains.

AI & Machine LearningDefense TechRoboticsBurlington, US

SCION PLASMA LLCscionplasma.comJul 2023 · $250K

Scion Plasma develops and manufactures plasma-based equipment including ion sources, magnetron sputtering cathodes, and simulation software for thin-film deposition and surface engineering applications.

Deep TechHardwareNew MaterialsSemiconductorsEast Lansing, US

Scuba Probe Technologies LLCscubaprobe.comFeb 2015 · $2.1M
SEACOAST SCIENCE, INC.seacoastscience.com

Seacoast Science manufactures the SC-214 μLogger, a compact remote chemical vapor detection system equipped with chemicapacitive and chemiresistive sensors for autonomous monitoring of chemical gases in ambient air.

Advanced ManufacturingCleantechDeep TechDefense TechHardwareIoTCarlsbad, US

Louis Haerle(President, Founder)Todd E. Mlsna(Chairman of the Board, Founder)Sanjay Patel(VP of Research and CTO)

SEALED OPTICS COMPANYsealedoptics.comJul 2019 · $199.7K

Sealed Optics designs and manufactures pre-mounted, permanently sealed optical products for scientists and engineers.

Advanced ManufacturingDeep TechHardwareNew Materials

SECMATION LLCsecmation.comin𝕏Jul 2019 · $199.9K

Secmation provides AI-driven cybersecurity and electronic warfare analysis, trusted execution, and digital engineering solutions for U.S.

AI & Machine LearningCybersecurityDefense TechRaleigh, US

Hal Aldridge(CEO)

Semantic Designs Incsemanticdesigns.comJun 2011 · $1.1M
SEMPLASTICS EHC LLCsemplastics.comJul 2018 · $4.5M
SENSANNA INC.sensanna.comJun 2021 · $200K
Sensateksensatek.cominJun 2020 · $249.1K

Sensatek designs, simulates, and manufactures complex antennas for aerospace and defense applications in extreme environments, with advanced RF testing and characterization capabilities up to 20 GHz.

Deep TechDefense TechHardwareIoTDaytona Beach, US

Co-investorsBeresford VenturesCloquet Capital Partners, LLCRhapsody Venture Partners

SENSOR CREATIONS, INC.sensorcreations.comJun 2015 · $1.6M
SENSORCOMM TECHNOLOGIES INCsensorcommtech.comJul 2023 · $250K
SENTAR, INC.sentar.cominJul 2023 · $199.9K

Sentar provides cybersecurity and cyber risk management solutions for organizations seeking to protect critical infrastructure, data, and connected systems.

AI & Machine LearningCybersecurityDefense TechEnterprise SoftwareColumbia, US

Bridget McCaleb(Catalyst and CEO)

SENTIENT SCIENCE CORPORATIONsentientscience.cominFeb 2015 · $2.3M

Sentient Science develops physics-informed digital engineering software to predict component failures and optimize asset management across critical infrastructure sectors including aerospace, energy, and industrial equipment.

Advanced ManufacturingAI & Machine LearningDeep TechEnterprise Software

Sepionsepiontechnologies.cominMar 2016 · $1.1M

Sepion develops advanced polymer separator technology for batteries and other applications including water separation and materials recovery.

CleantechDeep TechEnergyNew MaterialsSilicon Valley, US

Peter Frischmann(CEO & Co-Founder)inBrett Helms(CSO & Co-Founder)in

BoardRandy Chan(Director)

Co-investorsACVC PartnersAlumni VenturesCreative VenturesDolby Family VenturesFine Structures VenturesFoothill Ventures+4 more

SEQUENT LOGIC LLCsequentlogic.cominJun 2020 · $619.5K

Sequent Logic designs custom RF and mixed-signal electronics along with signal acquisition, DSP, and waveform synthesis solutions supporting ultra-wide bandwidths and high throughput.

Deep TechHardwareSemiconductors

Shear Form Incshearform.comJun 2011 · $4.8M
Shift Thermalshiftthermal.cominJun 2020 · $1.3M

Shift Thermal develops thermal storage technology for data center cooling systems, enabling efficient power allocation between cooling and computing infrastructure.

CleantechClimate TechData & InfrastructureDeep TechEnergyTennessee, US

Levon AtoyaninMitchell Ishmaelin

Co-investorsClean Energy VentureE8 AngelsMarket Square Ventures

Shinefusionshinefusion.comin𝕏Jul 2023 · $198.8K

Shine Fusion develops nuclear technology solutions aimed at building a more sustainable world.

CleantechDeep TechEnergyMedical DevicesMadison, US

Greg Piefer(Founder and CEO)in

Co-investorsAlumni VenturesKoch Disruptive TechnologiesNucleation CapitalNV NOM

SIENNA TECHNOLOGIES, INC.siennatech.comJun 2011 · $3.9M

Sienna Technologies manufactures aluminum nitride ceramic products and assemblies for scientific and industrial applications.

Advanced ManufacturingDeep TechHardwareNew MaterialsMukilteo, US

SIGMA TECHNOLOGIES INTERNATIONAL GROUP, INC.sigmalabs.comFeb 2013 · $3.3M

Sigma Technologies develops thin film and surface functionalization technologies for applications in energy storage, heat management, barrier films, and specialty materials.

Advanced ManufacturingDeep TechEnergyNew Materials

Angelo Yializis

SIGRAY, INC.sigray.comin𝕏Mar 2016 · $3.2M

Sigray develops advanced x-ray laboratory systems that deliver synchrotron-grade research capabilities using patented innovations in sources, optics, and design.

Deep TechHardwareNew MaterialsBenicia, US

Dr. Wenbing Yun(Co-founder)Ms. Sylvia Lewis(Co-founder)

SILICON AUDIO RF CIRCULATOR LLCsiaudio.comJun 2015 · $2M

Silicon Audio develops precision optical sensor systems and seismometers for monitoring seismic activity and environmental data in mission-critical applications.

Climate TechDeep TechHardwareIoTTexas, US

SIMMETRIX, INC.simmetrix.comJun 2011 · $7.4M

Simmetrix develops simulation-based design tools and techniques that integrate advanced engineering analysis into the product design process.

Advanced ManufacturingDeep TechEnterprise SoftwareSaaSClifton Park, US

SIMONPIETRI ENTERPRISES LLCsimonpietri.comJun 2021 · $1.8M

Simonpietri Enterprises is a Hawaii-based, woman-owned company that develops and designs renewable fuel manufacturing and waste-to-energy projects, converting construction, demolition, and organic waste into renewable jet fuel, clean hydrogen, fertilizer, and energy.

Circular EconomyCleantechEnergy

Joelle Simonpietri(President)

Sinmat Incsinmat.comJun 2011 · $4.1M
SIXPOINT MATERIALS, INC.spmaterials.comJun 2015 · $3.5M
SK Infrared LLCskinfrared.comFeb 2020 · $200K
SKULD LLCskuldllc.cominJul 2019 · $200K

Skuld develops advanced manufacturing processes and equipment for metal part production, combining 3D printing with lost foam casting techniques.

Advanced ManufacturingDeep TechHardwareNew Materials

Sarah Jordan(CEO and Co-founder)Mark(Co-founder)

SKYHAVEN SYSTEMS, LLCskyhavensystems.cominApr 2018 · $5.3M

Skyhaven Systems is a research and development firm specializing in electrochemical engineering and advanced chemical process technologies for the US Government, with particular focus on Defense, Energy, Aerospace, and Environmental applications.

CleantechDeep TechDefense TechEnergySteamboat Springs, US

Skymantics, LLCskymantics.cominApr 2018 · $193.4K

Skymantics develops AI-powered platforms for synthetic data generation, secure AI development, and drone logistics optimization.

AI & Machine LearningData & InfrastructureGovTechLogistics & Supply ChainSaaSMelbourne, US

SKYNANO LLCskynanotechnologies.comJun 2020 · $450K

SkyNano develops an electrochemical technology that captures CO₂ from industrial by-products and converts it into solid carbon nanomaterials such as carbon nanotubes and battery-grade graphite at low cost.

CleantechClimate TechNew Materials

Skyreskyre-inc.cominJun 2011 · $2.7M

SKYRE develops hydrogen recovery and compression systems for industrial manufacturing, recovering wasted hydrogen from production processes and enabling on-site hydrogen recycling.

Advanced ManufacturingCleantechDeep TechEnergyHardwareNew MaterialsEast Hartford, US

Trent Molter(Founder and CEO)

SKYSUN LLCskysunsolar.comJul 2019 · $186.2K

Skysun designs solar pergolas and structures that provide both shade and power for homes, businesses, and farms, using a mounting method that keeps panels off the roof while retaining roughly 90% efficiency.

AgTechCleantechEnergy

SMART INFORMATION FLOW TECHNOLOGIES LLCsift.netin𝕏Jul 2018 · $145.3K

Smart Information Flow Technologies (SIFT) is a research and development consulting company working in natural language processing, automated planning, cybersecurity, supervisory control, healthcare, and human-automation interaction.

AI & Machine LearningCybersecurityDeep TechMinneapolis, US

SMARTVILLE INCsmartville.ioJun 2022 · $1.3M

Smartville designs and deploys containerized battery energy storage systems (BESS) built from validated second-life EV batteries, with a cell-level energy management system for monitoring and dispatch.

Circular EconomyCleantechEnergy

SNAKE CREEK LASERS LLCsnakecreeklasers.comJun 2011 · $150K
Sofie Biosciencessofiebio.comin𝕏Jun 2011 · $1.1M

BiotechCulver City, US

Michael Phelps(Director)Stan Berman(Executive Officer)inPatrick Phelps(Executive Officer, Director)inJohannes Czernin(Director)James Heath(Director)

BoardAjit Singh(Director)

Co-investorsCycad Group LLC

SOL-GO, INC.sol-go.comJun 2022 · $1.3M

Sol-Go designs flexible, lightweight solar panels built for rugged, off-grid and mobile applications such as trucks, RVs, boats, excavators, and military vehicles.

CleantechEnergyHardware

SOLAR DYNAMICS LLCsolardynllc.comJun 2021 · $2.7M

Solar Dynamics develops and designs concentrating solar power systems and process heat solutions, drawing on expertise from major CSP projects worldwide.

CleantechClimate TechDeep TechEnergyDenver, US

Henry (Hank) Price(Managing Director)Patrick Marcotte(Associate Director)

SOLAR SEED INCsolarseed.energyJun 2021 · $131K

SolarSEED Energy builds affordable, modular solar power systems using patented multi-modal technology that works with any photovoltaic module and various storage devices to generate DC and AC electricity for charging, lighting, tools, and appliances.

CleantechEnergyImpact & Social Good

SOLARNO INCsolarno.comFeb 2013 · $1.1M
SOLICULTURE, INC.soliculture.comJul 2019 · $199.9K
Solid Cell Inc.solidcell.comFeb 2016 · $150K
SOLUTION DEPOSITION SYSTEMS, INC.solutiondepositionsystems.comApr 2018 · $150K

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

Polymer Aging Concepts IncQuest Integrated, LLCQUICKFLEX INC.REAL-TIME ANALYZERS INCROSS-HIME DESIGNS, INCORPORATEDScience Research Laboratory, IncSCIENTIFIC APPLICATIONS & RESEARCH ASSOCIATES, INC.Sensintel Inc.Signal Processing, Inc.

Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.