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Department of EnergyFull Portfolio

1,204 tracked investments · page 6 of 7 · listed companies and verified rows first

SONALYSTS INCsonalysts.comJul 2018 · $1.8M

Sonalysts is an employee-owned company providing operations analysis and research, training systems, modeling and simulation, software and systems engineering, decision support, and media services.

Defense TechEnterprise Software

Sonata LLCsonatamaterials.comFeb 2014 · $2.3M
SOUTHEASTERN BIOCHEMICALS, INC.southeasternbiochemicals.comJul 2019 · $455.9K

Southeastern Biochemicals uses a hybrid chemical-biological process to convert mixed plastic waste into commodity biochemicals such as fatty acids, glycerin, and high-value chemical derivatives, without requiring plastic separation.

Circular EconomyCleantechNew Materials

SOUTHWEST SCIENCES INCswsciences.comAug 2011 · $25.2M
SPACE FOUNDRY INCspacefoundry.usJun 2022 · $199.9K

Space Foundry develops plasma jet printing technology that deposits conductive and dielectric electronic materials directly onto planar and complex 3D surfaces in a single dry-process step.

Advanced ManufacturingHardwareSpace TechSan Jose, US

SPEC SENSORS LLCspec-sensors.comJul 2019 · $206.5K

Manufactures printed, plastic-laminated electrochemical gas sensor elements and signal-conditioned modules in a 20×20×3 mm, ultra-low-power footprint for detecting gases such as CO, O₃, NO₂, and H₂S.

HardwareIoTSemiconductors

SPECIAL POWER SOURCES LLCspsources.comFeb 2021 · $200K
SPECTRA SOLUTIONS INCspectrasolutionsinc.comJun 2015 · $1.4M

Spectra Solutions Inc. manufactures spectroscopic analytical instruments, fiber optic Raman probes, and related software for industrial companies and scientific research institutions worldwide.

Advanced ManufacturingDeep TechHardwareBoston, US

SPECTRAL ENERGIES LLCspectralenergies.comFeb 2013 · $2.5M
SPECTRAL SCIENCES, INCspectral.comFeb 2015 · $12.1M

Spectral Sciences, Inc.

Deep TechDefense Tech

SPECTRUM MAGNETICS LLCspectrum-magnetics.comJun 2013 · $150K
Spero Energy, Inc.speroenergy.comFeb 2014 · $1.1M

Spero Renewables develops chemical technologies that convert plant-based biomass, particularly lignin, into renewable thermoset plastics and polymers as alternatives to petroleum-based products.

Circular EconomyCleantechNew Materials

SPIRALGEN, INC.spiralgen.comJun 2015 · $150K

SpiralGen provides software research and development services for computing research teams, focused on performance portability on advanced high-performance computing (HPC) hardware using the open-source SPIRAL toolkit.

Deep TechDeveloper ToolsEnterprise Software

SPORIAN MICROSYSTEMS, INCsporian.comJun 2011 · $14.9M

Sporian develops advanced sensor and prototype technologies for extreme environments, including seismometer and flow sensors designed to operate under the high temperatures and pressures found on the surface of Venus.

Deep TechHardwareSpace Tech

SQUARE ONE SYSTEMS DESIGN, INC.sqr-1.comFeb 2017 · $3.5M
SRICO INCsrico.comFeb 2016 · $150K

SRICO develops application-specific integrated optic technology using electro-optics, nonlinear optics, and ferroelectric materials to produce optical chip-based products.

Deep TechHardwareSemiconductors

SRS HOLDINGS LLCsrsholding.comApr 2018 · $160K
STAR CRYOELECTRONICS, LLCstarcryo.comJun 2011 · $8.8M
Starfire Energy Clean Energystarfireenergy.comJul 2019 · $200K
STARFIRE INDUSTRIES LLCstarfireindustries.comJun 2014 · $16.1M

Starfire Industries designs and manufactures deep-tech hardware including high-flux neutron/radiation sources, thin-film deposition and etching systems, pulsed power, and cold plasma surface-treatment technology.

Advanced ManufacturingDeep TechHardwareChampaign, US

STEAM INSTRUMENTS INCsteaminstruments.comJun 2021 · $1.3M

Steam Instruments develops high-spatial-resolution mass spectrometry technology, including ion detectors, ion imaging optics, and high-mass spectrometer designs for applications such as direct-from-tissue biomolecule mapping, ultra-high-mass biomolecule analysis, sub-micron hydrogen and lithium mapping, semiconductor dopant analysis, and nuclear forensics.

BiotechDeep TechHardware

STELLARRAY INCstellarray.comFeb 2014 · $4.6M
STEM RESOURCES LLCstem-resources.orgJul 2023 · $161.9K
STEVEN WINTER ASSOCIATES INCswinter.com

Steward Winter (SWinter) is a consulting firm founded in 1972 that advises on energy efficiency, decarbonization, sustainable design, and accessibility for the built environment.

CleantechConstruction TechEnergy

STF TECHNOLOGIES LLCstf-technologies.comFeb 2019 · $2.7M

STF Technologies is a materials testing and consulting company specializing in rheology and soft matter, offering product development support, formulation optimization, and specialized instrumentation for industries including personal care, textile coatings, and polymers/composites.

Deep TechHardwareNew Materials

STI OPTRONICS, INC.stioptronics.comFeb 2012 · $3.8M
Stoicheia, Inc.stoicheia.aiAug 2022 · $894.5K
STORAGENERGY TECHNOLOGIES INCstoragenergy.comJul 2019 · $3.3M

Storagenergy develops advanced battery and energy storage technologies, including customized 2Ah-10Ah lithium-ion battery cells, novel electrode materials and architectures, solid oxide fuel cells, and ion-conducting membranes, with a prototype cell production facility.

CleantechEnergyNew Materials

STOTTLER HENKE ASSOCIATES, INCstottlerhenke.com

Stottler Henke builds artificial intelligence software systems and provides consulting for applications including education and training, planning and scheduling, decision support, knowledge management, and autonomous systems.

AI & Machine LearningEnterprise SoftwareGovTech

Stow Energy, Inc.stow.energyJun 2022 · $200K
STRATEGIC ANALYSIS, INC.sainc.comJul 2018 · $748.8K

Strategic Analysis provides technical, analytical, and program management support services to U.S. federal government clients developing emerging technologies for homeland security and defense.

Deep TechDefense TechGovTech

STRATTON PARK ENGINEERING CO., INC.specinc.comJun 2011 · $7.8M

SPEC designs and operates airborne instruments that measure cloud droplet and ice particle size distributions and capture high-resolution imagery of hydrometeors, supporting research in cloud microphysics, precipitation and atmospheric dynamics.

Climate TechDeep TechHardwareBoulder, US

STREAMLINE AUTOMATION LLCstreamlineautomation.biz

Streamline Automation designs custom automated systems for assembly, inspection, ergonomics, and warehouse automation, and provides engineering services in nuclear power, power plant and process engineering, finite element analysis, computational fluid dynamics, and rocket propulsion.

Advanced ManufacturingDeep TechRobotics

STRUCTURAL COMPOSITES INCstructuralcomposites.comJun 2021 · $200K

Structural Composites develops composite materials and technologies for customers in the marine, aerospace, theme park, defense, infrastructure, and road and rail transportation industries.

Advanced ManufacturingDeep TechNew Materials

Structural Integrity Associates, Inc.structint.comJun 2014 · $298.4K

Structural Integrity Associates (SIA) is an engineering and consulting firm focused on identifying, analyzing, and preventing engineering failures to support the reliable operation of critical infrastructure.

Advanced ManufacturingEnergyEnterprise Software

STRUCTURED MATERIALS INDUSTRIES, INC.structuredmaterials.comFeb 2013 · $10.6M
SubSeaSail, Incsubseasail.comJun 2021 · $1.4M

SubSeaSail (SSS) develops Autonomous Undersea & Surface Vehicles (AUSVs) — including the semi-submersible ISR/observation vessel HORUS and the trimaran cargo/energy-delivery vessel HERMES — that are wind- and solar-powered, long-duration, and can operate above and below water to depths of 100 meters.

Defense TechHardwareRoboticsSan Diego, US

SUBSURFACE INSIGHTS LLCsubsurfaceinsights.comFeb 2013 · $7.8M

Subsurface Insights provides timelapse electrical resistivity (4D ERT) subsurface monitoring, combining autonomous field hardware with cloud-based data management, processing, and reporting accessible via an API.

CleantechCloud ComputingHardware

Sunergolab Inc.sunergolab.comFeb 2017 · $450.9K
SUNFIG CORPORATIONsunfig.comJul 2019 · $200K
sunray_sci_sunrayscientific.cominJun 2017 · $1.4M

SunRay Scientific develops anisotropic conductive adhesives (ZTACH ACE), conductive inks, epoxies, and related materials for printed and flexible electronics, integrable with existing pick-and-place manufacturing equipment.

Advanced ManufacturingHardwareNew MaterialsWall Township, US

Andrew Stemmermann(CTO, Co-Founder)Madhu Stemmermann(CEO, Co-Founder)

BoardSteve Socolof(Director)

Sunvapor, Inc.sunvapor.netJul 2018 · $1.1M

Sun Vapor develops solar thermal technologies including solar steam generation, desalination, and thermal energy storage.

CleantechClimate TechEnergy

SUPERCOOL METALS LLCsupercoolmetals.comJul 2019 · $399.9K

Supercool Metals makes lightweight, high-strength, geometrically complex hardware components and subsystems using a patented manufacturing process, offering end-to-end capabilities from material science to finished assemblies.

Advanced ManufacturingHardwareNew Materials

Surfx Technologies LLCsurfxtechnologies.com

Surfx Technologies builds atmospheric, multigas plasma systems that clean and activate surfaces at ambient pressure for semiconductor packaging and printed circuit board assembly.

Deep TechHardwareSemiconductors

SURMET CORPsurmet.comJun 2011 · $5.4M

Surmet develops and manufactures advanced materials including transparent ceramics such as ALON (Aluminum Oxynitride) and Spinel, coating technologies, and Aluminum Nitride.

Advanced ManufacturingDeep TechNew MaterialsBurlington, US

Susmersusmer.comJul 2019 · $1.3M

SusMer develops next-generation polymers, using a proprietary chemical process to manufacture P4HB, for the medical and surgical device industry.

BiotechMedical DevicesNew Materials

SUSTEON INCsusteon.comFeb 2019 · $4.2M

Susteon develops and scales solvents, sorbents, and catalysts for carbon capture and decarbonization, using an AI discovery platform to accelerate materials R&D.

CleantechClimate TechNew Materials

Sydor Instruments, LLCsydortechnologies.comAug 2011 · $20.2M
SYMBIOS TECHNOLOGIES INC.symbiostechnologies.comFeb 2012 · $300K

Symbios Technologies develops an energy-efficient aqueous plasma technology platform for water and wastewater treatment and recycling.

CleantechClimate TechDeep Tech

SYMPLECTIC RESEARCH, INC.symplectic-research.comFeb 2017 · $379.9K
SYNCHROGRID, INC.synchrogrid.comJun 2021 · $200K

SynchroGrid provides relay setting development, review, and coordination services along with protection and control expertise and NERC compliance support for electric utilities.

EnergyEnterprise SoftwareSaaS

SYNDEM LLCsyndem.comJun 2020 · $206.4K

SYNDEM develops grid-forming inverters and Virtual Synchronous Machine (VSM) technology that integrate solar, wind, EVs, storage, AI data centers, and loads using the synchronization physics of synchronous machines, providing autonomous, cyber-resilient stabilization for power grids.

CleantechEnergyHardware

SYNTHETIK APPLIED TECHNOLOGIES LLCsynthetik-technologies.comFeb 2022 · $249.7K

Synthetik develops computational modeling and simulation software—including blast/CFD solvers (blastFoam, blastCFD, SynthShock) and AI-driven synthetic data and 3D annotation tools—for defense, energy, transportation security, environmental, and insurance clients such as the U.S.

AI & Machine LearningDeep TechDefense Tech

SYNTRO TEK CORPORATIONsyntrotek.comFeb 2020 · $348.9K
Synvitrobio, Inc.synvitrobio.comJul 2019 · $200K

HealthtechSan Leandro, US

Michael Nemzek(Executive Officer, Director)Zachary Sun(Executive Officer, Director)Corinna Chen(Director)

BoardFrancisco Dopazo(Director)

SYYCLOPS INCsyyclops.comJun 2021 · $200K

Syyclops provides a platform that consolidates building data and applies AI and IoT-driven analytics to deliver operational insights, equipment analysis, dashboards, and 3D digital twin visualizations.

AI & Machine LearningIoTPropTech

T2M GLOBAL LLCt2mglobal.comJun 2021 · $1.4M

T2M Global offers strategic advisory, technology development, and commercialization services to advanced energy start-ups focused on converting waste resources, such as low-level waste heat, into usable energy.

CleantechClimate TechEnergy

TACTICAL COMPUTING LABORATORIES LLCtactcomplabs.comFeb 2021 · $1.3M

Tactical Computing Laboratories designs advanced computing platforms and optimizes algorithms and runtime models for computationally- and data-intensive workloads, including work on early-access and experimental hardware.

Deep TechHardwareSemiconductors

TAI-YANG RESEARCH COMPANYe2pco.comFeb 2015 · $2.5M

Energy to Power (E2P) Solutions develops superconducting materials and cryogenic systems, producing customized high temperature superconducting magnets, current leads, cryogenic voltage bushings, and electrical connectors.

Deep TechEnergyHardware

TAKA SOLAR CORPtakasolar.comJun 2021 · $206.3K

Taka Solar (Sunspan) develops a patented solar tube technology that uses an aerodynamic, cable-supported "panel-as-structure" design to lower mounting costs, track the sun without moving parts, and resist soiling.

CleantechEnergyHardware

Chris BarnesDavid Frost

TAU SCIENCE CORPORATIONtauscience.comJun 2012 · $4.5M

Tau Science makes inspection and measurement systems for photovoltaic solar cells, including electroluminescence excitation (ELE), hot spot inspection, electro/photoluminescence, LBIC, and rapid quantum efficiency (QE) measurement.

CleantechEnergyHardware

TC Polytcpoly.cominJun 2020 · $1.3M

TCPoly produces thermally conductive polymers (Ice9 filaments and pellets) for 3D printing and traditional manufacturing, enabling heat management applications like heatsinks, battery packs, and enclosures.

Advanced ManufacturingHardwareNew Materials

TDA RESEARCH, INC.tda.comJun 2011 · $78.5M

TDA Research Inc. is a research and development company that develops commercial products and technologies across the defense/aerospace, medical, materials, and energy industries, bringing them to market through direct sales, distribution agreements, spin-off companies, and licensing.

Deep TechEnergyNew MaterialsGolden, US

TDVIB LLCtdvib.comJun 2020 · $2.4M
TECH-X CORPORATIONtxcorp.comJun 2011 · $86.7M

Tech-X Corporation develops multiphysics simulation software (including the VSim product line and the upcoming XSim) for modeling plasma physics, electromagnetics, photonics, and vacuum electronics.

Deep TechEnterprise SoftwareSaaS

TECH4IMAGING LLCtech4imaging.comJun 2013 · $7.1M

Tech4Imaging develops Electrical Capacitance Volume Tomography (ECVT) systems and capacitance sensors for non-invasive, real-time 3D imaging of multiphase flows.

Deep TechEnergyHardware

Qussai Marashdeh(Co-founder & CEO)Liang-Shih Fan(Co-founder)

TECHNERGETICS, LLCtechngs.comFeb 2021 · $248.5K

Technergetics builds digital solutions for the U.S.

AI & Machine LearningDefense TechQuantum Computing

TECHNOLOGY ASSESSMENT & TRANSFER, INCtechassess.comFeb 2012 · $3.4M

TA&T develops and manufactures advanced ceramic materials, including transparent Spinel ceramic armor, electro-optical windows, ceramic composites, and coatings, for aerospace, defense, industrial, automotive, and medical applications.

Advanced ManufacturingDeep TechNew Materials

TECTONICUS CONSTRUCTS LLCtectonicus.comJul 2019 · $1.4M

Tectonicus is an architecture and design practice presenting a portfolio of projects spanning buildings, cultural centers, residences, and solar energy installations such as solar carports and the Solar River initiative.

CleantechConstruction TechEnergyTucson, US

TELAZTEC LLCtelaztec.comJul 2023 · $450K

TelAztec develops patented Random Anti-Reflective (RAR) plasma-treated optical windows that maximize light transmission across deep UV to near-infrared wavelengths.

Deep TechHardwareNew Materials

TELEMETRAK INCtelemetrak.comJun 2022 · $200K

TelemeTrak develops supercapacitor-based buffering technology for residential and small commercial solar PV plus battery storage systems, reducing power clipping and battery strain, along with a design optimization tool and remote monitoring.

CleantechEnergyIoT

TEMPER INCtemperinc.comJun 2014 · $1.1M

Temper Inc. develops advanced manufacturing processes for thermoset and thermoplastic composites, including magnetic-field-based material processing, tooling, equipment, and services.

Advanced ManufacturingDeep TechNew Materials

TERA-PRINT LLCteraprint.usFeb 2021 · $1.8M

TERA-print develops nanofabrication instruments based on beam pen lithography (BPL), including its TERA-Fab E series tool that patterns features from 250 nm to over 100 µm using tens of thousands of independently controlled probes.

Deep TechHardwareNew Materials

TERRACOH INCterracoh-age.comJul 2018 · $1.3M
Terrafore Technologies LLCterraforetechnologies.comJun 2020 · $250K

Terrafore Technologies develops thermal energy storage systems—including encapsulated phase change materials (TerraCaps) and dual-media thermocline storage (TerraKline)—that aim to lower the cost of storing thermal energy from concentrated solar power (CSP) plants.

CleantechDeep TechEnergy

Tervestervesinc.comFeb 2015 · $2.7M

Advanced ManufacturingEuclid, US

Ben Weber(Class A-2 Manager)Robert Slowey(Class A-1 Manager)Andrew Sherman(Class A-1 Manager, President and Treasurer)Daniel Sherman(Class A-1 Manager)Brian Doud(Secretary)

Tessellatedtessellatedinc.comin𝕏Jun 2022 · $193.1K

Tessellated Inc. develops high tensile-strength engineered composite thin films produced via roll-to-roll manufacturing, working with U.S. defense and government agencies on applications including aircraft, body armor, ballistic protection, and lighter vehicles for emissions reduction.

Deep TechDefense TechNew Materials

Kevin Craig(Chief Executive Officer)

TETRAMER TECHNOLOGIES LLCtetramer.comJun 2011 · $15.4M
Teverra LLCteverra.comJul 2019 · $7.2M

Teverra develops subsurface technologies and provides advisory services for the energy industry, covering geothermal, carbon capture and storage, subsurface thermal energy storage, and lower-carbon oil and gas projects.

AI & Machine LearningCleantechEnergy

TEXAS RESEARCH INSTITUTE , AUSTIN, INC.tri-austin.com

TRI Austin performs research, development, and materials testing in advanced materials, including specialty polymer-based coatings, adhesives, sealants, and composite resins, and offers nondestructive evaluation and analytical lab services.

Deep TechDefense TechNew MaterialsAustin, US

J. Scott Thornton(Founder)

TEXPOWER EV TECHNOLOGIES, INC.texpower.usJul 2019 · $1.6M

TexPower manufactures cathode materials for lithium-ion batteries, including cobalt-free lithium iron phosphate (LFP), LMFP, and nickel manganese aluminum (NMA) oxide, using licensed IP from UT Austin.

CleantechEnergyNew MaterialsHouston, US

Arumugam Manthiram(Co-founder)Dr. Li(Founder)

THAR ENERGY LLCtharenergyllc.comJun 2020 · $456.5K
THE ENABLED MANUFACTURING LLCenabledengineering.comJun 2021 · $1.5M
THE EQUITY TECHNOLOGY GROUP INCORPORATEDe2g.comFeb 2019 · $2.2M

The Equity Engineering Group provides consulting, inspection, risk-based inspection (RBI), and asset integrity management services along with a cloud-native asset integrity management software platform.

Advanced ManufacturingEnterprise SoftwareSaaS

THE NAVSYS CORPORATIONnavsys.com

NAVSYS develops GPS/inertial navigation software and Positioning, Navigation, and Timing (PNT) solutions, including the InterNav GPS/inertial product for system integrators and network-assisted PNT systems that aid military GPS receivers in jammed environments.

Deep TechDefense TechHardware

THEIA SCIENTIFIC LLCtheiascientific.comFeb 2021 · $2.7M

Theia Scientific makes the Theiascope, an edge-computing hardware device with a browser-based dashboard that applies custom AI/ML models (supporting YOLO v5, v8, and v11) to analyze microscopy and other captured images in real time.

AI & Machine LearningDeep TechHardware

Kevin Field(Co-founder)Christopher Field(Co-founder)

THERMISOLN, LLCthermisoln.comJun 2022 · $1.9M
THERMOANALYTICS, INC.thermoanalytics.comJun 2014 · $1.3M
ThirdLaw Technologies LLCthirdlaw.techJul 2018 · $1.1M
Thornton Tomasetti, Inc.thorntontomasetti.com

Thornton Tomasetti applies engineering and scientific principles to the design, construction and performance of buildings, offering services such as structural engineering, forensics, flood risk protection, building enclosure renewal, rigging engineering for live events, and sustainability/life-cycle material analysis.

Climate TechConstruction TechDeep TechNew York, US

TIAX LLCtiaxllc.comJun 2011 · $9.1M

TIAX develops early-stage innovations in functional wearables and functional coatings into product platforms ready for commercialization, working with commercial and government clients.

Deep TechHardwareNew Materials

Tibaraytibaray.comJun 2017 · $6.3M

Fremont, US

Cecilia Carol Montalvo(Chief Executive Officer & Chief Financial Officer)

BoardLaird Q. Cagan(Director)Bill Loo(Director)James Vetter(Director)Peter Maxim(Director)Sami Tantawai(Director)

TIER 1 PERFORMANCE SOLUTIONS LLCtier1performance.comJul 2018 · $149.8K

Tier1 Performance is a consulting partner offering organizational performance and transformation services, covering people development, operations, growth, and digital transformation for businesses.

Enterprise SoftwareFuture of Work

TIETRONIX SOFTWARE INCtietronix.comJun 2022 · $199.8K
TIPD LLCtipdllc.comFeb 2016 · $250K
TIPTEK, LLCtiptek.comApr 2018 · $2.3M
Titanaestitanaes.cominJun 2020 · $1.3M

Titan is an energy storage technology company developing R&D-driven solutions aimed at changing patterns of energy storage and use.

Advanced ManufacturingAI & Machine LearningCleantechDeep TechEnergySalem, US

TOLEDO SOLAR INCtoledo-solar.comJun 2020 · $199.3K
TOTALSIM LLCtotalsim.usFeb 2013 · $149.5K

TotalSim US provides computational fluid dynamics (CFD) simulation consulting and automated workflows to model fluid flow, heat transfer, and aerodynamic performance for engineering teams across industries such as automotive, aerospace, energy, and marine.

Advanced ManufacturingDeep TechSaaS

TOUCHSTONE RESEARCH LABORATORY, LTD.trl.comJun 2011 · $4.1M

Touchstone provides research and development services spanning ideation, materials development, and product development, using open innovation management methods.

Deep TechNew Materials

TOYON RESEARCH CORPORATIONtoyon.comJul 2023 · $200K
TPL, INCtplinc.comFeb 2012 · $4.9M

TPL, Inc. develops advanced dielectric materials, including ceramic nanopowders, ceramic capacitors, performance capacitor films, and nanocomposite dielectrics.

Deep TechHardwareNew MaterialsAlbuquerque, US

TRABUStrabus.comApr 2018 · $150K
TRANSCEND ENGINEERING AND TECHNOLOGY, LLCtranscendengineering.comFeb 2013 · $3M

Transcend Engineering is a team of scientists and engineers that analyzes sensor data to understand and monitor subsurface environments, using numerical modeling, signal processing, and machine learning.

AI & Machine LearningDeep TechIoT

Transient Plasma Systems, Inc.transientplasmasystems.comJun 2015 · $2.6M

Transient Plasma Systems develops N3P (nanosecond pulsed power) technology aimed at applications with environmental and economic impact.

CleantechDeep TechEnergy

TRANSLUME INCtranslume.comFeb 2014 · $4.4M

Translume fabricates 2D and 3D micro-structured ion traps and performs precision micro-machining of fused silica, including custom and standard components.

Deep TechHardwareNew Materials

Trevi Systemstrevisystems.comJun 2015 · $224.9K

Petaluma, US

John Webley(Executive Officer, Director)Gary Carmignani(Executive Officer, Director)

BoardLaird Cagan(Director)Donald Green(Director)Thomas Birdsall(Director)

Tri-Guard Risk Solutions, LTDtgrisksolutions.comJun 2016 · $149.8K
TRIMER TECHNOLOGIES LLCtrimer-tech.comJul 2019 · $1.6M
TRITON SYSTEMS, INC.tritonsys.comFeb 2015 · $11.2M

Triton is a defense contractor that develops mission-critical solutions and integrates emerging technology for the U.S. government and defense partners.

Deep TechDefense Tech

TRUVENTIC LLCtruventic.comFeb 2021 · $250K
TS NANOts-nano.comFeb 2023 · $198.9K

TS-Meni PoC device detecting 30+ proteins using quantum sensing.

Albuquerque, US

MAHMOUD REDA TAHA(Executive Officer, Director)JOHN CHARLES STORMONT(Executive Officer, Director)

Tusaartusaar.com

Lafayette, US

Gautam Khanna(Executive Officer, Director)David Pearce(Director)

Twelvetwelve.coinJun 2016 · $7.7M

Twelve transforms CO2 into chemicals, fuels, and materials through carbon transformation technology.

Advanced ManufacturingCleantechClimate TechHealthtechNew MaterialsMoses Lake, US

Nicholas Flanders(Founder & CEO)inEtosha Cave(Founder)Kendra Kuhl(Founder)inMarc-Henri Galletti(Director)Nimesh Shah(Director)Charles Warden(Director)

Twinleaf LLCtwinleaf.comApr 2018 · $150K

Twinleaf designs and sells high-sensitivity atomic magnetometers, magnetic shielding, low-noise current supplies, and related components for measuring and controlling magnetic fields.

Deep TechHardwareSpace Tech

UBERSPARK INCuberspark.comJul 2023 · $206.5K
UbiQDubiqd.comin𝕏Mar 2016 · $150K

UbiQD develops and manufactures quantum dot materials and products for controlled-environment agriculture, clean energy, and security applications.

AgTechDeep TechNew MaterialsLos Alamos, US

Hunter McDaniel(Founder and CEO)

UES INCues.comAug 2011 · $9.2M
UHV Technologies Incuhvtech.comFeb 2013 · $5.1M
ULC TECHNOLOGIES LLCulctechnologies.comJul 2018 · $1.7M

ULC Technologies provides robotics-assisted field services and inspection products for gas distribution utilities, including live gas main repair, cross bore detection, underground mapping, and in-pipe inspection cameras.

CleantechEnergyRobotics

ULTOOL LLCultool.comJun 2020 · $1.3M

Bean Cellar is a specialty coffee roaster that sources beans from small farms in Southeast Asia and roasts them in small batches.

ConsumerFoodTech

ULTRA COMMUNICATIONS, INC.ultracomm-inc.comFeb 2012 · $1.1M

Ultra Communications designs, develops and manufactures compact high-speed fiber optic components for harsh environments, built on a patented planar flip-chip packaging platform with low size, weight and power.

Deep TechDefense TechHardware

UltraCell LLCultracell-llc.comFeb 2012 · $149.8K
ULTRAMETultramet.comJun 2011 · $19.9M

Ultramet develops and manufactures refractory metals, platinum group metals, and ceramics—including coatings, freestanding structures, open-cell foams, and ceramic matrix composites—for use in extreme, high-performance environments.

Advanced ManufacturingDeep TechNew Materials

ULTRASONIC TECHNOLOGIES INCultrasonictech.comJun 2013 · $3M

UST Systems builds ultrasonic detection technology that identifies micro-cracks and stress in manufacturing processes, allowing production lines to reject structurally compromised parts.

Advanced ManufacturingDeep TechHardware

ULTRecovery Corporationultrecovery.comApr 2018 · $150K
UMPQUA RESEARCH COMPANYumpquaresearch.com
United Silicon Carbideunitedsic.comAug 2011 · $4.7M

Monmouth Junction, US

Mari-Anne Gagliardi(Executive Officer)Betsy Cotton(Executive Officer)Anup Bhalla(Executive Officer)J. Christopher Dries(Executive Officer, Director)Greg Olsen(Director)Derek Lidow(Director)

UNIVERSAL REAL TIME POWER CONVERSION LLCurtpc.comJun 2022 · $200K

Universal Real Time Power Conversion (URTPC) develops physics-based real time simulation software using finite element analysis for model-, controller-, hardware-, and power-hardware-in-loop simulation of motors, generators, power converters, and large power grids.

Deep TechEnergyRobotics

UNIVERSAL SCHEDULE & BOOKING LLCuniversalschedule.comJul 2023 · $200K
UPSTATE PARTS & SUPPLY INCupstatehvac.comJul 2019 · $1.3M
Upstreamupstream.techinJun 2020 · $1.5M

Upstream Tech builds software for land and water management, including its Lens (geospatial monitoring) and HydroForecast (hydrological forecasting) products.

AI & Machine LearningCleantechClimate TechSaaS

Marshall Moutenot(Chief Executive Officer)Alden Keefe Sampson(Chief Technology Officer)Carolyn duPont(Chief Commercial Officer)

Urban Electric Powerurbanelectricpower.comin𝕏Jul 2019 · $187.6K

Urban Electric Power manufactures modular, rechargeable zinc-based battery energy storage systems for commercial, industrial, and off-grid applications.

CleantechEnergyHardwarePearl River, US

David Elliman(Director)Alexander Couzis(Executive Officer, Director)Jamshyd Godrej(Director)Thomas Baruch(Director)Sanjoy Banerjee(Director)Ann Marie Scuderi(Executive Officer)

US HYBRID CORPORATIONushybrid.comJun 2014 · $298K
USMAT INCusmat.usFeb 2023 · $250K
Usmicrolabsusmicrolabs.comApr 2018 · $149.9K
UTOPIACOMPRESSION,CORPORATIONutopiacompression.com
V-Glass, INCv-glass.comJun 2011 · $2.6M

V-Glass is developing affordable vacuum insulated glazing (VIG) for windows, using two glass panes separated by tiny spacers with a vacuum sealed between them to reduce heat loss and meet stringent energy efficiency standards.

CleantechEnergyNew Materials

Pete Petit(Founder)

VEGA WAVE SYSTEMS INCvegawave.comFeb 2012 · $4.4M
VENTAMATIC LTDbvc.comJun 2021 · $1.3M

A ventilation industry manufacturer with over 70 years of experience building custom ventilation solutions for its customers.

Advanced ManufacturingHardware

VERACITY NUCLEAR, LLCveracitynuclear.comFeb 2023 · $400K

Veracity Nuclear develops integrated core and plant simulation software and provides core design, analysis, and optimization services for the nuclear industry.

Deep TechEnergySaaS

VERITEL ENERGY LLCveritelenergy.comJul 2023 · $199.8K
VERMONT PHOTONICS TECHNOLOGIES CORP.vermontphotonics.comFeb 2019 · $891.9K

Vermont Photonics provides angle metrology and optical system testing through standard and custom instruments, integrated solutions, and precision measurements.

Advanced ManufacturingDeep TechHardware

VERTEX SOLUTIONS, LLCvertexsolutions.comApr 2018 · $149.1K

Vertex Solutions develops training programs, mobile learning apps, performance support tools, and 3D modeling and simulation systems for federal, state, and local government agencies and commercial firms.

Defense TechEdTechGovTech

Vertum Partners Lpvertumpartners.comJun 2011 · $1.4M
Vescentvescent.comJul 2023 · $349.5K

Vescent develops photonics and quantum hardware, including frequency combs, lasers, controllers, and optical atomic clocks, along with laser stabilization and cold atom science solutions.

Deep TechHardwareQuantum Computing

Scott Davis(Co-Founder & CEO)

vespr-solarvesprsolar.cominJun 2022 · $199.3K

VesprSolar manufactures PV panel fasteners and rail systems designed for large-format solar modules to handle extreme weather and reduce installation time.

CleantechEnergyHardwareSomerville, US

James Sewell(Director)Robert Sewell(Executive Officer, Director, Promoter)

ViQiviqiai.comApr 2018 · $2.3M

Santa Barbara, US

Kristian Kvilekval(Executive Officer, Director)Katherine Yeung(Executive Officer, Director)

BoardPascal Bamford(Director)Andreas von Blottnitz(Director)

VIRGINIA DIODES, INC.vadiodes.comJun 2011 · $2.4M

Virginia Diodes designs and manufactures millimeter-wave and terahertz components and systems, including diodes, transmitter and receiver modules, passive components, and test and measurement equipment.

Deep TechHardwareSemiconductors

VISIMO LLCvisimo.aiFeb 2022 · $1.3M

VISIMO builds AI decision systems that connect fragmented data, preserve source provenance, quantify uncertainty, and produce traceable recommendations subject to human review.

AI & Machine LearningDefense TechGovTech

VISTA CLARA INC.vista-clara.comJun 2011 · $15.7M
VISTA PHOTONICS, INCvistaphotonics.comJun 2011 · $8.1M

Vista Photonics develops laser-based optical sensors for environmental monitoring and space exploration applications.

Deep TechHardwareSpace Tech

VISTAR ENERGY INCvistar-energy.comJul 2018 · $149.9K
VISUS LLCvisus.netFeb 2017 · $3.5M
VLNComm LLCvlncomm.comFeb 2015 · $1.1M
Volexionvolexion-inc.cominJun 2021 · $200K
VOLTA ENERGY INCvoltaenergy.comJul 2023 · $200K

Volta Energy develops electrochemical technologies including redox flow batteries and novel electrolyzers for hydrogen production.

CleantechClimate TechEnergy

Ravi(President & CEO)Sri(Vice President & COO)

Voltaiqvoltaiq.comin𝕏Feb 2013 · $1.1M

Voltaiq provides an enterprise Battery AI software platform for companies that develop and produce battery products, helping engineers analyze battery data to identify and resolve issues, scale production, and speed product development.

AI & Machine LearningCleantechEnergyEnterprise SoftwareBrooklyn, US

Tal Sholklapper(Co-founder & CEO)Eli Leland(Co-founder & CTO)

BoardMichael Berolzheimer(Director)

Voltservervoltserver.cominJun 2014 · $1.1M

VoltServer develops Digital Electricity technology for power distribution in data centers, fiber networks, and extended enterprise deployments.

Data & InfrastructureEnergyHardwareEast Greenwich, US

Stanley Mlyniec(Executive Officer)Charles Garcia(Executive Officer, Director)Jorge Acevedo(Director)Stephen Eaves(Executive Officer, Director)Matthew Giuliano(Executive Officer)Robert C. Fanch(Director)

VORCAT, INC.vorcat.comFeb 2012 · $1.9M

Vorcat develops computational fluid dynamics (CFD) software based on a patented vortex method for simulating turbulent flows, aimed at reducing the need for physical testing such as wind tunnels.

Advanced ManufacturingAI & Machine LearningDeep Tech

VOSS SCIENTIFIC LLCvosssci.comJun 2017 · $2.7M
VOXTEL, INC.voxtel-inc.comJun 2011 · $19.1M

Allegro MicroSystems designs sensing and power semiconductor products, including Hall-effect current sensors, inductive position sensors, and isolated gate drivers.

HardwareMobility & TransportationSemiconductors

VRC Metal Systems, LLCvrcmetalsystems.comFeb 2017 · $4.8M
VURONYX TECHNOLOGIES LLCvuronyxtech.comJun 2015 · $1.9M
WALDEMAR S. NELSON AND COMPANY, INCORPORATEDwsnelson.comJun 2017 · $150K

NELSON is an engineering and architectural firm that delivers project-based design and construction solutions for clients.

Construction Tech

WARNER BABCOCK INSTITUTE FOR GREEN CHEMISTRY LLCwarnerbabcock.comFeb 2017 · $155K
WASATCH IONICS LLCwasatchionics.comFeb 2022 · $250K

Wasatch Ionics is a contract R&D and strategic consulting business specializing in electrochemistry, including the development and testing of novel battery chemistries, process scaleup, and prototyping.

Deep TechEnergyNew MaterialsSalt Lake City, US

Javier Alvaré(Owner & R&D Director)

WASATCH MOLECULAR, INC.wasatchmolecular.comFeb 2019 · $149K

Wasatch Molecular Incorporated develops materials modeling and simulation tools spanning ab initio quantum chemistry to continuum engineering, specializing in molecular and continuum simulations of polymers, energetic materials, electrolytes and ionic liquids, with emphasis on lithium ion and lithium metal batteries.

Deep TechEnergyNew MaterialsSalt Lake City, US

WEI7 LLCwetzelwind.comJul 2023 · $199.9K
Weinberg Medical Physicsweinbergmedicalphysics.comFeb 2012 · $149.8K

North Besthesda, US

Irving Weinberg(Executive Officer, Director)

WENEW CARBOLOGY LLCwenewc.comJul 2023 · $206.5K

WeNeW operates a MEfuel process that converts agricultural and forestry residues into low-emission synthetic diesel and aviation fuels, while co-producing biochar soil amendments and animal feed.

AgTechCleantechClimate Tech

WESTERN SERVICES CORPORATIONws-corp.comJul 2018 · $2.3M
WILDLIFE IMAGING SYSTEMS LLCwildlifeimagingsystems.comJun 2021 · $1.5M

Wildlife Imaging Systems develops computer vision and machine learning software for wildlife biologists and ecologists, using camera systems, video processing, and data management to monitor and protect wildlife.

AI & Machine LearningCleantechClimate Tech

WILLAMETTE TECHNICAL FABRICATORS, LLCwtfllc.comJul 2023 · $206.5K
Windliftwindlift.comJul 2023 · $199.9K

Windlift develops wind-resilient tethered drones with an AI-driven flight-control system and simulation tools for autonomous tethered flight, targeting infrastructure protection, border security, and aerial surveillance.

Defense TechEnergyRoboticsDurham, US

Robert J. Creighton(Executive Officer, Director)Andy Stough(Manager)Bence Oliver(Executive Officer)Frank Segal(Executive Officer)

WINGBRACE LLCwingbrace.comJul 2019 · $200K

Wingbrace designs dynamic defense systems and synthetic environments that simulate real-world scenarios, and builds software products—INSIGHT™ for automated data discovery and semantic mapping, and AFFINITY™ for turning complex data into decision-ready insights.

AI & Machine LearningDefense TechGovTech

Woodruff Scientific, Inc.www,woodruffscientific.comJun 2014 · $3.8M
WYONICS LLCwyonics.comApr 2018 · $1.7M
X-SCALESOLUTIONS LLCx-scalesolutions.comApr 2018 · $4.4M
X-Wave Innovations, Inc.x-waveinnovations.comJun 2015 · $9.1M
Xage Securityxage.cominJul 2019 · $399.1K

Xage builds zero trust access and security solutions to protect critical infrastructure systems and prevent cyberattacks.

CybersecurityEnterprise SoftwareIoTSaaSPalo Alto, US

SriinDorea El-Sayed(Executive Officer)Duncan Greatwood(Executive Officer, Director)inNorman Thorlakson(Executive Officer)Roman Arutyunov(Executive Officer)inSusanto Irwan(Executive Officer, Director)in

XDOT ENGINEERING & ANALYSIS PLLCxdotbt.comJul 2023 · $199.6K

Xdot designs and produces patented foil bearing technology for high-speed, oil-free turbomachinery operating in extreme environments such as cryogenic to 1200+ F temperatures.

Advanced ManufacturingDeep TechHardware

Erik Swanson(Dr.)

XELERA RESEARCH LLCxeleraresearch.comFeb 2016 · $3M

Xelera Research develops and supplies particle accelerator components—including particle sources, individual components, and accelerator designs—and offers consulting services such as radiation shielding advice for research and industrial applications.

Deep TechHardware

Xergy Incorporatedxergyinc.comFeb 2013 · $1.1M
XIA LLCxia.comJun 2011 · $14.9M
XIOMAS TECHNOLOGIES LLCxiomas.comJun 2012 · $150K
Xtelligentxtelligent.ioJul 2018 · $1.1M
XUV LASERS, INC.xuvlasers.comFeb 2014 · $7.3M
Yardney Technical Products, Inc.yardney.comNov 2012 · $1.8M

Renderboss is a render farm management tool for VFX, animation, and game studios, built in Rust.

Developer ToolsMedia & EntertainmentSaaS

Z SOFTECH SOLUTIONS INCzsoftechsolutions.comFeb 2017 · $229.7K

z SofTech Solutions is a minority- and woman-owned management and technology consulting firm that works as an IT systems integrator and value-added reseller, offering consulting, architecture, procurement, and implementation of hardware and software.

Cloud ComputingEnterprise SoftwareGovTech

Z-Terra Inc.z-terra.comFeb 2012 · $1.3M

Z-Terra develops seismic imaging software, including interactive depth imaging and velocity model building tools, along with related services for the upstream oil and gas industry.

EnergyEnterprise SoftwareSaaS

ZENITH PURIFICATION LLCzenithpurification.comJul 2023 · $250K
zeroK NanoTech Corporationzerok.comApr 2018 · $3M

ZeroK builds high-performance focused ion beam (FIB) systems, including its FIB:ZERO platform offering smaller spot sizes at lower beam energy and a range of beam currents, positioned as a next-generation replacement for Ga+, He+, or Ne+ based FIBs.

Deep TechHardwareSemiconductors

ZETTAR INCzettar.comFeb 2019 · $225K

Zettar builds the zx Appliance, a turnkey data-movement appliance that transfers petabyte-scale datasets at line rate across networks, running on enterprise hardware such as HPE ProLiant servers and NVIDIA BlueField DPUs.

AI & Machine LearningData & InfrastructureDeep Tech

Zonge International, Inc.zonge.comJul 2023 · $248.6K

Zonge designs, manufactures, and sells geophysical instruments and provides related survey services including data acquisition and modeling.

Advanced ManufacturingDeep TechHardware

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.