Fundraising FoxDepartment of Energy — 2021 Investments
99 investments dated 2021 · listed companies and verified rows first · show all
AAPlasma is an engineering company that researches and develops advanced oxidation processes using non-equilibrium "cold" plasma, UV, and high-voltage electronics, and partners with industry clients to integrate these systems for applications like air cleaning, water treatment, disinfection, and food safety.
CleantechDeep TechNew MaterialsPhiladelphia, US
Greg Fridman(Co-founder)Charles Bailey(Co-founder)
Achilles Heel Technologies develops cybersecurity solutions that enable government and commercial customers to model complex systems, identify vulnerabilities, and assess which attacks would be most damaging.
AI & Machine LearningCybersecurityDeep TechDefense Tech
Jerry Rudisin(CEO)David Grimsman(Director, Product Development)Benjamin Francis(Chief Scientist/Principal Investigator)
ALL Power Labs designs and manufactures biomass gasification systems and containerized energy solutions that convert forestry and agricultural waste into power, heat, and biochar for communities and rural areas.
Circular EconomyCleantechClimate TechEnergyHardwareBerkeley, US
Jim Mason(Gasification expert)Bear Kaufmann(Executive Officer)inAlejandro Abalos(Executive Officer)in
BoardTom Dinwoodie(Solar innovator)Dr. Dan Kammen(Energy pioneer)
Anadyne designs and manufactures analog amplifier integrated circuits (ICs) for high-reliability applications, including logarithmic amplifiers and operational amplifiers with ultra-low noise performance.
Deep TechDefense TechHardwareSemiconductorsSanta Cruz, US
Applied Minerals is a vertically integrated producer of halloysite clay, supplying commercially consistent product grades tailored to customer performance objectives.
Advanced ManufacturingNew MaterialsBrooklyn, US
John Levy(Director)William Gleeson(Executive Officer)Christopher Carney(Executive Officer)Mario Concha(Director)Andre Zeitoun(Executive Officer, Director)Robert Betz(Director)
Artium manufactures scientific measurement instruments including particle imaging probes and inkjet droplet measurement systems for research and industrial applications.
Advanced ManufacturingClimate TechDeep TechEnergyHardwareSunnyvale, US
William D. Bachalo(President & CEO)
BST Systems designs and manufactures high-energy alkaline electrochemical cells and batteries, specializing in rechargeable silver-zinc chemistry with expanding focus on lithium-ion and other battery chemistries.
Advanced ManufacturingDefense TechEnergyHardware
Burch Energy is an energy engineering and design-build services firm that specializes in building energy efficiency and sustainable energy solutions for commercial and industrial customers.
CleantechClimate TechConstruction TechEnergyPortland, US
Brian Allbritton(Executive Director)David Burchfield
Carbon Solutions provides consulting, research, and software tools for low-carbon energy technologies including carbon capture, hydrogen, geothermal, and renewable energy.
CleantechClimate TechDeep TechEnergy
Richard Middleton(CEO & Co-Founder)
The page shows limited company information; only a co-founder's biography is visible without details about the company's products, market, or industry focus.
Deep TechHardwareSemiconductors
Kim Asal(Co-founder | VP of Operations)
ChannelScience develops tape reader and cleaner hardware for professionals in data migration, recovery, preservation, and archiving.
Data & InfrastructureDeep TechDeveloper ToolsHardware
Community Energy Labs provides a building management solution that reduces energy demand charges and heating/cooling costs for public works and education facilities through automated HVAC optimization and integration with existing smart thermostats and building automation systems.
CleantechEnergyEnterprise SoftwareIoTSaaS
Co-investorsIdeashipPortland Seed Fund
Delivers state-of-the-art magnetics to enable power electronics components that are 90% smaller and 50% more efficient
Advanced ManufacturingEnergyHardwareNew MaterialsPittsburgh, US
Samuel Kernion(PRESIDENT)Paul Ohodnicki(Executive Officer, Director, Promoter)in
BoardReed Sturtevant(Director)Carmichael Roberts(Director)
Co-investorsEvergreen Climate Innovations
CoreShell Technology develops metallurgical silicon materials for electric vehicle batteries as a more economical and scalable alternative to synthetic silicon.
CleantechEnergyNew Materials
Co-investorsBaruch Future VenturesBlue Bear VenturesEntrada VenturesFoothill VenturesHelios Climate VenturesTrousdale Ventures+1 more
Delphire develops an AI-powered fire detection system that uses visual confirmation to identify ignitions in real time and transmit alerts to first responders and command centers.
AI & Machine LearningClimate TechDeep TechDefense TechHardwareIoTRoboticsIrvine, US
Dr. Gilberto DeSalvo(Founder, CEO)
Design Interactive provides digital transformation solutions combining human-centered design with emerging technologies including extended reality, digital twins, and AI-driven performance systems for enterprise, defense, and industrial organizations.
AI & Machine LearningDeep TechDefense TechEdTechEnterprise Software
Emrgy develops a redesigned hydropower technology that lets customers generate continuous clean energy from existing water flows, supporting decentralized grid power independence.
CleantechClimate TechEnergyAtlanta, US
Emily Morris(Chief Executive Officer & Founder)inTom Cuthbert(Chief Technology Officer)in
BoardJennifer McFarlane(Director)Anastasia Istratova(Director)inJustin Wright-Eakes(Director)inBob Kelly(Director)
Co-investorsOval Park CapitalFifth WallAtlanta Technology AngelsAvilaWai Mohala Ventures SPV 1
Energy Wall manufactures modular energy recovery air handling units for HVAC systems, built from lightweight polymer and designed for flexible capacity scaling and simplified installation in commercial buildings.
CleantechConstruction TechEnergyHardwareLancaster, US
ENERlite Consulting provides building performance consulting that integrates daylighting, thermal comfort, and energy simulation for design teams and building owners, using building energy modeling, AI-assisted calibration, and green building certification services.
CleantechConstruction TechEnergySacramento, US
Ladan Ghobad(Founder)
Epsilon Innovation Group is a consulting firm specializing in climate change, energy, environment, policy, and risk analysis services for clients worldwide.
AI & Machine LearningCleantechClimate TechData & InfrastructureEnergyGovTechImpact & Social GoodSector AgnosticMaryland, US
Equal1 builds quantum computing infrastructure packaged as deployable rack systems for data centers, combining quantum research with CMOS silicon design to deliver practical, production-ready quantum computing solutions.
Deep TechHardwareQuantum ComputingSemiconductors
Dirk Leipold(Founder)in
Co-investors808 VenturesAtlantic Bridge VenturesIreland Strategic Investment FundMatterwave Ventures
Co-investorsImpulse VC
Extreme Scale Solutions builds and deploys applied AI/ML systems under real-world constraints such as latency, cost, security, and privacy, spanning FPGA and embedded edge inference, enterprise RAG/Graph-RAG knowledge systems, encrypted ML inference, and distributed training at supercomputer scale.
AI & Machine LearningDeep TechEnterprise Software
Floating Island International develops and licenses BioHaven floating treatment wetlands, patented technology that mimics natural floating islands to improve water quality, remove nutrients, and mitigate aquatic methane emissions.
CleantechClimate TechImpact & Social GoodHelena, US
Bruce Kania(CEO, President, and Research Director)Anne Kania(Executive Vice-President)
HartSCI develops adaptive optics systems and beam control technologies for satellite communications, ground-to-space optical communications, and space domain awareness imaging applications.
Deep TechDefense TechHardwareSpace TechTucson, US
Michael Hart(President)
Hawaii Fish Company operates an aquaculture and aquaponics farm on Oahu's North Shore, raising tilapia and other fish for local and regional markets.
AgTechCleantechFoodTechOahu, US
Ron WeidenbachLita Weidenbach
Hive Power Engineering (HPE) is an engineering design and consulting firm specializing in electrical power transmission and distribution, offering substation design, protection and control, relay settings, renewables integration, and power system studies.
CleantechEnergy
Impossible Sensing develops remote sensing technologies for space exploration applications and commercializes these capabilities for Earth-based climate mitigation, sustainable agriculture, and deep ocean exploration.
Climate TechDeep TechHardwareSpace Tech
Co-investorsIcebook Investments Corp.
Indrio Technologies makes IGNIS, a laser-based sensor for measuring emissions directly in the exhaust of on-road vehicles.
CleantechDeep TechHardwareIoTMobility & TransportationSan Jose, US
Peter Chidyllo(Director)Ritobrata Sur(Executive Officer, Director)
Co-investorsStartX
Integral provides site investigation and remediation services for industrial companies and law firms, specializing in regulatory compliance, remediation design, and litigation support for contaminated sites.
CleantechClimate TechEnterprise SoftwareHealthtechImpact & Social GoodLegalTechNew Jersey, US
Seven visionaries
Irradiant operates a 3D nano-optics and photonics foundry, using flexible 3D nano-fabrication and lithography to manufacture optical and photonic components such as metalenses, optical interconnects, and integrated free-space optical microsystems.
Advanced ManufacturingDeep TechHardware
Daniel Oran(Founder)in
Co-investorsGeometryThe E14 FundMana Ventures
ISO-Pacific develops and deploys innovative remediation technologies for environmental cleanup projects serving governmental and commercial clients.
CleantechConstruction TechDeep TechHardwareRobotics
Lori KeresMike Dillon
iZen provides eLearning and upskilling technology for underserved populations worldwide.
AI & Machine LearningCloud ComputingCybersecurityEdTechGovTechHardwareImpact & Social GoodSilicon Valley, US
Laxmish(CEO, Co-Founder)Gajanan(President, Co-Founder)
Trackers/SunFarmor makes pre-engineered solar generator systems that let landowners such as row crop farmers, greenhouse and livestock operators, and brownfield or landfill owners produce clean energy, store it in batteries, or make fuel and fertilizer.
AgTechCleantechEnergy
RoCo is a North American supplier of high-purity ionic liquids and molten salts for research, industrial, and commercial applications across energy storage, catalysis, electrochemistry, and advanced materials.
Circular EconomyCleantechDeep TechEnergyNew MaterialsPittsburgh, US
Hunaid Nulwala(Founder, Ph.D.)
LongPath Technologies provides methane emissions monitoring and quantification networks for oil and gas operators, using advanced sensing to detect and measure emissions.
CleantechClimate TechEnergyBoulder, US
Gregory B. Rieker(Director, Promoter)inIan Dickinson(Executive Officer, Director)inJohn Bookout III(Director)R.C. Mercure(Director)James F. Adelson(Director)H. Robert Gill(Director)
Co-investorsBuff Gold Ventures
Luminous Cyber develops resilient timing infrastructure for mission-critical systems that maintains navigation and synchronization when GPS and external timing sources are unavailable.
Deep TechDefense TechEnterprise SoftwareHardware
Charles Barry(PhD)Marc Weiss(PhD)Richard LindquistGlenn Hitchcock
Makai Ocean Engineering provides ocean engineering and software services, including ocean-based renewable energy systems (OTEC, SWAC), submarine cable planning software, marine pipeline design, thermal management, and subsea AI/ML development.
Deep TechEnergyHardwareWaimanalo, US
Marine Situ manufactures specialized underwater hardware including stereo camera systems, LED lights, anti-biofouling UV systems, and integration hubs designed for long-term marine scientific deployments and species monitoring.
AgTechAI & Machine LearningCleantechDeep TechHardwareIoT
Microwave Techniques designs, engineers, and manufactures high-power microwave and RF components, industrial microwave systems, and related solutions for heating, drying, tempering, and cooking applications.
Advanced ManufacturingDeep TechDefense TechHardwareNashua, US
MineraLogic provides geochemical expertise and strategy for the mining industry, focusing on environmental geochemistry, chemical thermodynamics, and hydrogeology to deliver client solutions.
CleantechClimate TechDeep TechDuluth, US
Molecular Rebar produces a proprietary material additive that enhances the durability and performance properties of rubber, elastomers, coatings, conductive inks, and composites used across industrial applications.
Advanced ManufacturingDeep TechNew MaterialsAustin, US
NLM Photonics develops hybrid organic electro-optic modulation materials and devices that integrate into silicon photonics and other photonic integrated circuit platforms to improve modulation efficiency and reduce power consumption.
Deep TechHardwareNew MaterialsSemiconductorsSeattle, US
Gerard Zytnicki(Co-Founder & Corporate Advisor)inPaul Nye(Co-founder)inDelwin Elder(Co-founder)inLewis E. Johnson(Co-Founder & Chief Technology Officer)inBruce H. Robinson(Co-Founder & Technical Advisor)inBrad Booth(Chief Executive Officer & Board Director)in
Co-investorsEmerald Technology Ventures AgIdeashipOregon Venture FundPack VenturesStoryHouse
OptiPro Systems designs and manufactures precision grinding, polishing, and metrology machines for the precision optics and advanced ceramics industries, and serves as a machine tool distributor and systems integrator for manufacturing companies in upstate New York.
Advanced ManufacturingHardwareRoboticsNew York, US
Otherlab is an independent research and design lab that develops technologies in renewable energy, robotics, and manufacturing, incubating internal projects into spinout companies.
CleantechEnergyRobotics
Saul Griffith(Founder, Chief Scientist)James McBride(Co-founder, CTO)
Co-investorsIn-Q-Tel
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
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)
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)
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
CleantechDecatur, US
Co-investorsEnergy Transition VenturesTechstars
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
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)
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)
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
Special Power Sources (SPS) designs remote power generation solutions for use in harsh operating conditions and remote locations.
CleantechEnergyHardware
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
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
SubSeaSail develops long-duration, energy-harvesting autonomous surface and undersea vehicles equipped with low-power sensors for ocean data collection, communications, and cargo deployment.
Defense TechHardwareIoTRoboticsSan Diego, US
Michael Jones(CEO)Chris Todter(Technical Director)Mark Ott(Partner)
SynchroGrid provides relay setting development, review, and coordination services along with protection and control expertise and NERC compliance support for electric utilities.
EnergyEnterprise SoftwareSaaSHouston, US
Dr. Reza Teshnizi
Syyclops provides a software platform for facility operations that leverages decades of building design expertise, incorporating digital twin technology, AI-driven diagnostics, and indoor air quality monitoring to optimize energy efficiency and sustainability in commercial and educational buildings.
AI & Machine LearningCleantechIoTPropTech
Tactical Computing Laboratories develops hardware platforms and software tools optimized for computationally-intensive and data-intensive workloads, bridging advanced hardware architecture with specialized programming models and software optimizations.
AI & Machine LearningDeep TechHardwareSemiconductors
John Leidel(Chief Scientist/Founder)David Donofrio(Chief Hardware Architect)
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
TERA-print develops desktop nanofabrication tools that enable researchers and organizations to create nanostructures and bioprinted systems for applications in bioengineering, sensing, microelectronics, and microrobotics.
BiotechDeep TechHardwareNew Materials
Chad Mirkin(Founder)Andrey Ivankin(Co-Founder)
Enabled Engineering develops extrusion systems for additive manufacturing that handle metals and metal-matrix composites with programmable feed rates and real-time monitoring.
Advanced ManufacturingDeep TechHardwareNew Materials
Kumar
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)
Truventic develops sensor systems for space and defense applications, working with government agencies and private companies on hardware prototypes and technology feasibility studies.
Deep TechDefense TechHardwareSpace TechCentral Florida, US
Dr. Robert Peale(President and Scientist)Chris Fredricksen(Electronics & Optical Engineer)Dr. Francisco Javier Gonzalez(Scientist & Infrared Sensor Specialist)Dr. Michael Lodge(Materials Scientist & Nanoscale Device Processing Specialist)
Seattle, Washington-based developer of the TRISO-fueled Micro Modular Reactor and micro-space reactors.
EnergySeattle, US
Francesco Venneri(Executive Officer, Director)Giulia DeLorenzi-Venneri(Executive Officer)Eva Zhang(Director)Lorenzo Venneri(Director)Ritesh Budree(Executive Officer)
Co-investorsNucleation CapitalAndreessen HorowitzChevron Technology VenturesCrucible CapitalDecisive PointFundomo+2 more
Ventamatic manufactures and distributes ventilation products including fans, heaters, and air quality solutions for residential, commercial, and industrial applications across North America.
Advanced ManufacturingHardwareMineral Wells, US
Volexion develops cathode active material encapsulation technology and drop-in composite materials for lithium-ion battery manufacturing, improving cycle life, power density, temperature range, and voltage window.
CleantechClimate TechDeep TechEnergyNew Materials
Damien Despinoy(Co-Founder, President and COO)inJoseph X. Adiletta
Co-investorsClean Energy VentureEarth FoundryEnergy FoundryClean Energy Ventures
Wildlife Imaging Systems develops computer vision and machine learning software for wildlife biologists and ecologists to capture and analyze video data.
AI & Machine LearningCleantechClimate TechDeep Tech
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.