Funded Energy startups in the US
36 energy startups in the US have filed a Form D with the SEC and together report $928.1M raised. Caban Systems has the largest latest round, at $122.7M. Amounts are as reported on the filing, not estimates.
Updated Sep 15, 2026
- Companies
- 36
- Total raised
- $928.1M
- Filings
- 50
- Median round
- $5.2M
- States
- 22
CompanyStateCityLast filingLatest round
Innoven EnergyLaser-driven fusion for power generation
California
Solana Beach
Sep 15, 2026
$18.1M
GlacianAI control software for data center cooling
Pennsylvania
State College
Jul 28, 2026
$150K
Emerald AIGrid-responsive power control for AI data centers
District of Columbia
Washington
Jul 17, 2026
$90.2M
Hephae Energy TechnologyDrilling electronics for superhot geothermal wells
Texas
Spring
Jun 30, 2026
$17.8M
PowrLineHigh-voltage line and substation work for utilities
Georgia
Atlanta
Jun 25, 2026
$5.5M
Fusion Energy SolutionsTurns nuclear waste into reactor fuel and medical isotopes
Arizona
Tempe
May 21, 2026
$2.5M
Fast ForwardVehicle-mounted inspection of power lines and poles
Nebraska
Kearney
May 20, 2026
$360K
Virtual PeakerVirtual power plant software for utilities
Kentucky
Louisville
May 15, 2026
$1.0M
Proper VoltageBattery control software for swapping in new chemistries
California
Carlsbad
May 12, 2026
$6.5M
Switched SourcePower electronics that balance load across grid phases
Illinois
Chicago
May 4, 2026
$10.0M
Ouros EnergySilicon-anode battery cells for defense and aerospace
Florida
Hallandale
Apr 6, 2026
$15.0M
Heat2PowerHot gas engines that turn heat into electricity
Michigan
Ann Arbor
Mar 31, 2026
$15.2M
Applied AtomicsModular nuclear power plants built at customer sites
Alaska
Anchorage
Mar 23, 2026
$8.3M
Green GridPower line monitoring sensors for wildfire detection
California
San Ramon
Mar 23, 2026
$200K
PanthalassaFloating wave-energy nodes that power offshore computing
Oregon
Portland
Mar 17, 2026
$94.1M
Distill EnergyGrid simulations for congestion and power price risk
Delaware
Dover
Mar 2, 2026
$2.2M
Atana ElementsLithium brine and critical mineral exploration
Texas
Houston
Feb 13, 2026
$27.5M
Volt HaborBattery storage that mixes modules of any chemistry or age
Michigan
Ann Arbor
Feb 13, 2026
$2.0M
Renew Power SystemsStackable grid-forming inverters for microgrids
Minnesota
Minneapolis
Jan 13, 2026
$675K
TextureDevice and meter data platform for running grid programs
New York
New York
Dec 19, 2025
$12.5M
AndiumRemote site monitoring with cameras for oil and gas
New York
New York
Sep 30, 2025
$4.1M
Rare Earth TechnologiesRare earth element refining and separation
Ohio
Cincinnati
Sep 30, 2025
$200K
Bitmine Immersion TechnologiesBitcoin mining with immersion-cooled machines
Nevada
Las Vegas
Jun 30, 2025
$39.6M
eWellboreOperates in the energy sector, focusing on optimizing wellbore…
Texas
Houston
Apr 16, 2025
N/A
T-REX AcquisitionFocuses on delivering scalable and cost-effective Bitcoin…
Florida
Plantation
Apr 7, 2025
N/A
QgemsLeading global energy management platform provider that…
New York
New York
Mar 14, 2025
$1.0M
Amplified IndustriesWireless sensors and AI monitoring for oil wells
Massachusetts
Boston
Mar 6, 2025
$11.1M
GridFlowLithium-sulfur flow batteries for grid storage
Massachusetts
Albuquerque
Mar 1, 2025
$300K
Exploration Technologies, Inc./DESurface geochemistry surveys for oil and gas exploration
California
San Diego
Feb 24, 2025
$1.9M
Caban SystemsBattery storage for off-grid telecom sites
California
Burlingame
Feb 21, 2025
$122.7M
MB Holdings 2025Multinational corporation engaged in a diverse array of…
Texas
Pasadena
Feb 14, 2025
$6.2M
Johnson Energy StorageAll-solid-state lithium batteries
Georgia
Atlanta
Feb 7, 2025
$1.0M
VutilitySelf-powered sensors for real-time energy monitoring
Utah
West Jordan
Feb 7, 2025
$11.5M
Zeno Power SystemsRadioisotope power systems for space and the seabed
Washington
Seattle
Jan 21, 2025
$53.8M
EonnAppears to be a non-existent entity, but it is possible that…
Texas
Pflugerville
Sep 19, 2024
$300K
ndustrial.ioEnergy intensity analytics for industrial plants
North Carolina
Raleigh
Apr 24, 2024
$20.1M
All 36 companies · most recent filing first
Most recent filings
36All 36 companies · most recent filing first