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Startup list · Energy · 2026

Energy startups in 2026

206 companies, newest first, each linked to the record it comes from.

MentionFox lists 206 Energy companies for 2026. Of them, 21 are Y Combinator companies (the newest batch here is Fall 2026, with 4); 179 filed a Form D notice with the SEC; 6 won an SBIR or STTR award. Across the 173 Form D notices in the table that report an amount sold, the median is $3M; the largest is $340M, by EnerVenue Holdings, Ltd. (its Form D, filed Jun 9, 2026). The median SBIR or STTR award in the table is $427,606, across 6 awards.

Companies206
Y Combinator21
Form D filers179
SBIR/STTR winners6
Median amount sold (Form D)$3M

Other years

Energy startups in 2026

CompanyWhat it doesDateAmountRound / stageRecord
Arinna, IncScaling power-dense, radiation-tolerant flexible solar panels for high-value marketsAward starts Oct 1, 2026$312,407SBIR Phase IIFederal award record
Plasmonics IncEngineered solar reflective coating with high infrared transparencyAward starts Oct 1, 2026$1.3MSBIR Phase IIFederal award record
Verde Technologies IncorporatedPerovskite solar cells on metal foil substrates: enabling low-cost and flexible solar technologyAward starts Oct 1, 2026$305,000SBIR Phase IFederal award record
Manatee, Inc.Filed Sep 25, 2026SEC Form D
Navajo Power, PBC (funding history)Filed Sep 25, 2026SEC Form D
Nuvve Holding Corp. (funding history)Filed Sep 24, 2026$280,000SEC Form D
Mojave Energy Systems, Inc. (funding history)Filed Sep 23, 2026$25MSEC Form D
Bay State Marine Electric CorpFiled Sep 22, 2026$25,000SEC Form D
Tenon Medical, Inc. (funding history)Filed Sep 21, 2026$4.3MSEC Form D
1st American Nuclear Co. (funding history)Filed Sep 18, 2026$1MSEC Form D
Amarc Resources LtdFiled Sep 18, 2026$4.3MSEC Form D
Whisper Aero Inc. (funding history)Filed Sep 17, 2026$46.3MSEC Form D
Rise Energy IncFiled Sep 16, 2026$500,000SEC Form D
Heartland Water Technology, Inc. (funding history)Filed Sep 15, 2026$1.5MSEC Form D
LiCube, Inc.Filed Sep 15, 2026$8.5MSEC Form D
YouChews, Inc.Filed Sep 15, 2026$275,000SEC Form D
Skouria Inc.Filed Sep 14, 2026$4MSEC Form D
Voltwing Energy, Inc.Filed Sep 14, 2026$400,000SEC Form D
Equiptra, Inc.Filed Sep 11, 2026$560,000SEC Form D
Mes Investors IV, LLCFiled Sep 11, 2026$2MSEC Form D
Sunrun Inc.Filed Sep 11, 2026SEC Form D
Mes Investors III, LLCFiled Sep 10, 2026$1.5MSEC Form D
Chilean Cobalt Corp. (funding history)Filed Sep 8, 2026$1.5MSEC Form D
Exaeris Water Innovations, LLCFiled Sep 8, 2026$299,184SEC Form D
Exlites Holdings International IncFiled Sep 8, 2026SEC Form D
Expion Energy, Inc. (funding history)Filed Sep 8, 2026$9MSEC Form D
BlueCore Energy, Inc. (funding history)Filed Sep 4, 2026$19.4MSEC Form D
Vermont Transco LLCFiled Sep 4, 2026$12.3MSEC Form D
Astrol Power LLCFiled Sep 3, 2026SEC Form D
Energy Domain, LLC (funding history)Filed Sep 3, 2026$3MSEC Form D
Global Water Resources, Inc.Filed Sep 3, 2026$10MSEC Form D
Quaise Energy, Inc. (funding history)Filed Sep 3, 2026SEC Form D
Appalachia Infra LLCFiled Sep 2, 2026$300,000SEC Form D
DISA Tech, Inc.Filed Sep 2, 2026$2,960SEC Form D
DISA Uranium CorporaitonFiled Sep 2, 2026$105MSEC Form D
Gasentec Holdings, Inc.Filed Sep 2, 2026$15.5MSEC Form D
Applied KineticsAI for the industries that power AmericaFall 2026Y Combinator batchY Combinator listing
InvertixEnergy Superintelligence, AI that runs energy operations.Fall 2026Y Combinator batchY Combinator listing
MicoraSolar farm in a box built anywhere in daysFall 2026Y Combinator batchY Combinator listing
TalosPredictive maintenance for power infrastructure.Fall 2026Y Combinator batchY Combinator listing
NY Drs Finco Vii, LLCFiled Aug 31, 2026$1.1MSEC Form D
Tgs Asa (funding history)Filed Aug 26, 2026$9.8MSEC Form D
Kore Infrastructure, LLC (funding history)Filed Aug 25, 2026$64,690SEC Form D
Cardinal Data Power, Inc. (funding history)Filed Aug 24, 2026$75.8MSEC Form D
MicroGrid LLCFiled Aug 24, 2026$300,000SEC Form D
Navajo Poly LLCFiled Aug 24, 2026$561,300SEC Form D
Noria Energy, Inc.Filed Aug 21, 2026$1.6MSEC Form D
Antares Nuclear, Inc. (funding history)Filed Aug 18, 2026$60MSEC Form D
Cuprum Metals Inc. (funding history)Filed Aug 18, 2026$19.4MSEC Form D
Usm Procurement 1 LLCFiled Aug 18, 2026$52MSEC Form D
Usm Procurement 2 LLCFiled Aug 18, 2026$40MSEC Form D
Usm Procurement 3 LLCFiled Aug 18, 2026$52.5MSEC Form D
OBE Power Networks 1, LLCFiled Aug 14, 2026$1.9MSEC Form D
Fusion Fuel Green PLC (funding history)Filed Aug 13, 2026$1.5MSEC Form D
Libertystream Infrastructure Partners Inc. (funding history)Filed Aug 13, 2026$14.2MSEC Form D
AiGent, Inc. / DEFiled Aug 12, 2026$17.5MSEC Form D
Cig DS1, LLC (funding history)Filed Aug 11, 2026$70MSEC Form D
Darcy Solutions, Inc.Filed Aug 11, 2026$15MSEC Form D
Gridwater IncFiled Aug 11, 2026$80,000SEC Form D
Critical Materials Group, Inc.Filed Aug 6, 2026$7.8MSEC Form D
Mariana Minerals Co. (funding history)Filed Aug 6, 2026$310MSEC Form D
PulseForge, Inc.Filed Aug 6, 2026$16MSEC Form D
Metari Technologies LtdFiled Aug 5, 2026$2,689SEC Form D
Wrm Wastewater Aggregator, LLCFiled Aug 5, 2026$571,349SEC Form D
Hydrocean, IncFiled Aug 3, 2026$833,225SEC Form D
Advanced Thermovoltaic Systems, Corp. (funding history)Filed Jul 31, 2026$4.6MSEC Form D
StratGrid Inc. (funding history)Filed Jul 31, 2026$1.8MSEC Form D
Central Nevada Gold Corp.Filed Jul 30, 2026$12.1MSEC Form D
Nanoramic, Inc. (funding history)Filed Jul 30, 2026$9MSEC Form D
WaveGuide Corp (funding history)Filed Jul 30, 2026$200,000SEC Form D
Infrawatt, Inc.Filed Jul 29, 2026$500,000SEC Form D
New Energy Freedom, LLC (funding history)Filed Jul 29, 2026$80MSEC Form D
Arizona Strip Energy Corp.Filed Jul 28, 2026$52,912SEC Form D
Pasto Bueno Tungsten Inc.Filed Jul 28, 2026$2.9MSEC Form D
Trico Power LLCFiled Jul 28, 2026$335,000SEC Form D
General Fusion Inc. (funding history)Filed Jul 27, 2026$108MSEC Form D
Princeton Critical Minerals, Inc.Filed Jul 27, 2026$11MSEC Form D
AE Resources IncFiled Jul 22, 2026$108,550SEC Form D
Quilla Resources Inc. (funding history)Filed Jul 22, 2026$20.4MSEC Form D
Resolute Grid, Inc.Filed Jul 22, 2026$18.2MSEC Form D
Ocean Thermal Energy CorpFiled Jul 21, 2026$20,000SEC Form D
ParcoData IncFiled Jul 21, 2026$544,910SEC Form D
Alderbuck Energy, Inc. (funding history)Filed Jul 20, 2026$6.6MSEC Form D
Qnetic CorpFiled Jul 20, 2026$55,003SEC Form D
Lucius Nexus, Inc.Filed Jul 17, 2026$4.5MSEC Form D
Cow Gas LLCFiled Jul 16, 2026$6.5MSEC Form D
Exeter Energy IncFiled Jul 16, 2026$1MSEC Form D
R3 Lithium, Inc.Filed Jul 16, 2026$5.3MSEC Form D
VoltServer Inc. (funding history)Filed Jul 16, 2026$5MSEC Form D
Tonopah Energy Center LLCFiled Jul 14, 2026$300,000SEC Form D
XL Batteries, Inc. (funding history)Filed Jul 14, 2026$13MSEC Form D
VLTRU Technologies, Inc.Filed Jul 13, 2026$600,000SEC Form D
Osp Small Projects, LLCFiled Jul 9, 2026$450,000SEC Form D
Zero Industrial Inc.Filed Jul 6, 2026$10MSEC Form D
HEAT2POWER Inc.Upscaling air-bridge thermophotovoltaics for thermal batteriesAward starts Jul 1, 2026$305,000SBIR Phase IFederal award record
Meter Energy Technologies LLCFiled Jul 1, 2026$75,000SEC Form D
Scenic Hill Solar L, LLCFiled Jun 25, 2026$925,000SEC Form D
Scenic Hill Solar LI, LLCFiled Jun 25, 2026$2MSEC Form D
Solidion Technology Inc. (funding history)Filed Jun 23, 2026$35MSEC Form D
Upstart Power Technologies, Inc.Filed Jun 23, 2026$4.1MSEC Form D
Nucleus Power, Inc.Filed Jun 22, 2026$64,000SEC Form D
Allied Group Holdings, LLCFiled Jun 16, 2026$300,000SEC Form D
Maverick Labs, Inc. (funding history)Filed Jun 16, 2026$7.5MSEC Form D
Ourea Energy Inc.Filed Jun 16, 2026$250,000SEC Form D
El Paso Minerals Corp.Filed Jun 15, 2026$2MSEC Form D
Cig CS6 Procurement LLCFiled Jun 12, 2026$43MSEC Form D
Texture Corp. (funding history)Filed Jun 12, 2026$12.5MSEC Form D
Viatec, Inc. (funding history)Filed Jun 12, 2026$300,000SEC Form D
SoFab Inks Inc. (funding history)Filed Jun 11, 2026$2.9MSEC Form D
EnerVenue Holdings, Ltd. (funding history)Filed Jun 9, 2026$340MSEC Form D
Frost Methane Labs Co.Filed Jun 8, 2026$1.6MSEC Form D
Outlast Power Inc. (funding history)Filed Jun 8, 2026$4MSEC Form D
District Metals Corp. (funding history)Filed Jun 5, 2026$1.4MSEC Form D
Calico Infrastructure Holdings LLCFiled Jun 3, 2026$1.2MSEC Form D
Green Evolution Technologies (funding history)Filed Jun 2, 2026$400,000SEC Form D
AtomarineFloating nuclear powered data centers at sea.Summer 2026Y Combinator batchY Combinator listing
DaqstraAI-native test infrastructure to accelerate hardware companies.Summer 2026Y Combinator batchY Combinator listing
DreamPocket-sized AI cameras that catch asset damage.Summer 2026Y Combinator batchY Combinator listing
EdviroAI That Operates Energy InfrastructureSummer 2026Y Combinator batchY Combinator listing
Ethos Space ResourcesWe make Silicon on the Moon.Summer 2026Y Combinator batchY Combinator listing
Libra RoboticsRobotic crews for large-scale infrastructure constructionSummer 2026Y Combinator batchY Combinator listing
MarengoAI-Native Engineering Firm designing Data CentersSummer 2026Y Combinator batchY Combinator listing
MeteoricDrones that clear clouds over solar farms and weaken hurricanesSummer 2026Y Combinator batchY Combinator listing
Salem Robotics IncDeploying robots for inspections in hazardous spaces, like nuclear.Summer 2026Y Combinator batchY Combinator listing
TorusLegora for physical engineering firmsSummer 2026Y Combinator batchY Combinator listing
American Terawatt, Inc.Filed May 27, 2026$52.6MSEC Form D
Armada Capital, LLC / OKFiled May 26, 2026$156MSEC Form D
Koolbridge Energy, Inc. (funding history)Filed May 26, 2026$870,000SEC Form D
Silicon Ranch Corp (funding history)Filed May 26, 2026$7.6MSEC Form D
Altillion TopCo, Inc.Filed May 22, 2026$4.5MSEC Form D
Terraflow Energy, Inc.Filed May 20, 2026$20.4MSEC Form D
Pliant Energy Systems IncOnr sbir phase 2 pliant energy systems inc.Award starts May 14, 2026$542,805SBIR Phase IIFederal award record
Hadron Energy, Inc.Filed May 11, 2026$9.9MSEC Form D
XE-6 Tech, LLCFiled May 8, 2026$125,000SEC Form D
Teichos Energy, LLCFiled May 7, 2026$2.4MSEC Form D
Cig DS1 Procurement LLCFiled May 4, 2026$100MSEC Form D
Midcon MagnesiumFiled May 4, 2026$150,000SEC Form D
Blue Energy Global Inc.Filed May 1, 2026$177MSEC Form D
Canopy Nrg LLCFiled May 1, 2026$1.7MSEC Form D
Caris IncFiled May 1, 2026$338,700SEC Form D
Latitude Energy Holdings Inc. (funding history)Filed May 1, 2026$75,000SEC Form D
Venki Energy LLCFiled May 1, 2026$43,000SEC Form D
Luminous Robotics, Inc. (funding history)Filed Apr 30, 2026$1.3MSEC Form D
Petra Power, Inc.Filed Apr 28, 2026$3.8MSEC Form D
Langan Management Aggregator LLC (funding history)Filed Apr 22, 2026$4.4MSEC Form D
SUNation Energy, Inc.Filed Apr 22, 2026$1.2MSEC Form D
Langan Engineering, Environmental, Surveying, Landscape Architecture & Geology, D.P.C. (funding history)Filed Apr 21, 2026$4.9MSEC Form D
Nexamp, Inc. (funding history)Filed Apr 17, 2026$180MSEC Form D
Ouros Energy, Inc.Filed Apr 15, 2026$15MSEC Form D
Natrion Inc. (funding history)Filed Apr 14, 2026$4.6MSEC Form D
Positron Charging Inc.Filed Apr 14, 2026$750,000SEC Form D
Virtus Power Holdings, LLCFiled Apr 14, 2026$150MSEC Form D
Capstone Green Energy Holdings, Inc. (funding history)Filed Apr 13, 2026$113MSEC Form D
Mattur Holdings, Inc.Filed Apr 13, 2026$14.8MSEC Form D
Terraform Industries, Inc.Filed Apr 13, 2026$37.7MSEC Form D
Blue Spark Energy Systems Inc. (funding history)Filed Apr 10, 2026$6.4MSEC Form D
Davy Gas Inc. (funding history)Filed Apr 10, 2026$964,501SEC Form D
NFluxion IncFiled Apr 10, 2026$100,000SEC Form D
Innovus Power, Inc.Filed Apr 9, 2026$881,563SEC Form D
PyroNexus, LLCFiled Apr 9, 2026$1.3MSEC Form D
V Ten Metals Corp. (funding history)Filed Apr 9, 2026$614,499SEC Form D
Aionics Holdings Inc. (funding history)Filed Apr 8, 2026$501,651SEC Form D
Aston Labs Co. (funding history)Filed Apr 8, 2026$7.5MSEC Form D
Noble Gas Systems Inc. (funding history)Filed Apr 8, 2026$1.5MSEC Form D
Plasmonic Reactor Systems, Inc.Filed Apr 8, 2026$100,000SEC Form D
Standard Thermal CorpFiled Apr 8, 2026$10.8MSEC Form D
FlameCo Holdings LLCFiled Apr 7, 2026$512,500SEC Form D
RheEnergise LtdFiled Apr 7, 2026$158,090SEC Form D
Coreshell Technologies, Inc.Filed Apr 6, 2026$46.3MSEC Form D
Eco World Water Corp (funding history)Filed Apr 6, 2026$5.9MSEC Form D
Apollo Atomics, Inc.We make the most compact nuclear reactorsSpring 2026Y Combinator batchY Combinator listing
Sora Fuel Corp (funding history)Filed Mar 31, 2026$14.6MSEC Form D
Terrestrial Energy Inc. /DE/Filed Mar 31, 2026$85,320SEC Form D
Linova Energy Inc. (funding history)Filed Mar 27, 2026$4.2MSEC Form D
RevaTerra Inc. (funding history)Filed Mar 25, 2026$515,788SEC Form D
Costen Solar, Inc.Filed Mar 24, 2026$1.1MSEC Form D
LiquidPiston, Inc. (funding history)Filed Mar 24, 2026$500,009SEC Form D
Coastal Measures Inc.Filed Mar 19, 2026$500,000SEC Form D
Otovo AsaFiled Mar 19, 2026$14MSEC Form D
Verdera Energy Corp.Filed Mar 19, 2026$400,000SEC Form D
M2X Energy Inc. (funding history)Filed Mar 18, 2026$20.3MSEC Form D
Voltify Inc. (funding history)Filed Mar 18, 2026$22.6MSEC Form D
Tolero H2 Inc. (funding history)Filed Mar 9, 2026$690,000SEC Form D
Interlune CorporationInterlune corporation - prospect moon: a lunar resource technology demonstration and prospecting missionAward starts Mar 2, 2026$6.9MSBIR Phase IIIFederal award record
Legence Corp. (funding history)Filed Mar 2, 2026$7.3MSEC Form D
Ampera, Inc.Filed Feb 27, 2026$20MSEC Form D
Chesapeake Gold CorpFiled Feb 20, 2026$1.1MSEC Form D
Deep Fission, Inc. (funding history)Filed Feb 18, 2026$80MSEC Form D
Found Energy Co (funding history)Filed Feb 10, 2026$5.4MSEC Form D
GreenLIB Materials Inc.Filed Feb 9, 2026$1.1MSEC Form D
Standard Nuclear, Inc. (funding history)Filed Feb 9, 2026$70MSEC Form D
Fractal Power Inc.Filed Feb 6, 2026$9.8MSEC Form D
Critical Loop, Inc.Filed Feb 2, 2026$12.4MSEC Form D
XCF Global, Inc.Filed Feb 2, 2026$700,000SEC Form D
Verde Technologies Inc (funding history)Filed Jan 23, 2026$3MSEC Form D
Reservoir Power PBCFiled Jan 20, 2026$4.1MSEC Form D
SeaLion Energy, Inc.Filed Jan 20, 2026$120,000SEC Form D
Ren-Elektra, Inc. (funding history)Filed Jan 15, 2026$100,000SEC Form D
Mechademy Inc (funding history)Filed Jan 5, 2026$9.1MSEC Form D
PCC Hydrogen Inc.Filed Jan 2, 2026$844,103SEC Form D
Beyond Reach LabsSpace solar arrays that grow to the size of a football field in orbitWinter 2026Y Combinator batchY Combinator listing
Condor EnergySoftware for enterprise energy procurement.Winter 2026Y Combinator batchY Combinator listing
SquidAI agents for power grid planning 🦑Winter 2026Y Combinator batchY Combinator listing
Terranox AIThe first AI-powered uranium discovery companyWinter 2026Y Combinator batchY Combinator listing
Visibl SemiconductorsCustom silicon for power electronicsWinter 2026Y Combinator batchY Combinator listing
Voxel EnergyEnergy independent data centers with solar and repurposed batteriesWinter 2026Y Combinator batchY Combinator listing

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Permanent URL: https://mentionfox.com/startups/energy/2026
Last updated 2026-09-30
Primary record: SEC filing 1 · SEC filing 2 · SEC filing 3 · SEC filing 4 · Y Combinator directory entry · Federal award record
Energy startups in 2026: 206 companies, each with its record. MentionFox, 2026-09-30. https://mentionfox.com/startups/energy/2026