Funded Cleantech startups in the US
Every company below filed a Form D with the SEC. Amounts are as reported on the filing, not estimates.
Updated Jul 22, 2026
- Companies
- 55
- Total raised
- $697.7M
- Filings
- 68
- Median round
- $2.4M
- States
- 25
CompanyStateCityLast filingLatest round
ClearSign TechnologiesCorporation is a Tulsa, Oklahoma-based public company (Nasdaq…
Oklahoma
Tulsa
Jul 22, 2026
$1.8M
Sila NanotechnologiesBattery materials company that makes a silicon-based anode…
California
Alameda
Jul 17, 2026
$309.6M
CopperCopper (legally Channing St
California
Berkeley
Jul 15, 2026
$9.8M
H2PlusBuilds patented water treatment systems that destroy PFAS and…
Colorado
Grand Junction
Jul 14, 2026
$828K
Infinite CoolingMassachusetts industrial cooling technology company spun out…
Massachusetts
Malden
Jul 2, 2026
$5.3M
NovaSolixDevelops rectenna-based solar devices that convert sunlight to…
California
Newark
Jun 28, 2026
$125K
Resource MonitorSells connected water metering hardware and a management…
District of Columbia
Washington
Jun 24, 2026
$1.1M
CapturaPasadena, California climate-technology company…
California
Pasadena
Jun 18, 2026
$53.5M
HighT-TechHighT-Tech, Inc. is a Beltsville, Maryland advanced-materials…
Maryland
Beltsville
Jun 15, 2026
$350K
Lilac SolutionsOakland, California company founded in 2016 that develops…
California
Oakland
Jun 12, 2026
$34.4M
Eco-ShelterEco-Shelter, doing business as Ocean, is a Tacoma, Washington…
Washington
Tacoma
Jun 5, 2026
$550K
ViatecBuilds plug-and-play electric power take-off (ePTO) and mobile…
South Carolina
Piedmont
May 29, 2026
$300K
Green Evolution Technologies(G.E.T.) is a Las Vegas, Nevada company that manufactures and…
Nevada
Las Vegas
May 27, 2026
$400K
Lakril Technologies(Låkril) is a Chicago-based specialty chemicals startup…
Illinois
Chicago
May 19, 2026
$30K
Tidal Vision ProductsBellingham, Washington specialty biochemicals manufacturer…
Washington
Bellingham
May 18, 2026
$19.0M
Persefoni AIClimate management and carbon accounting software platform…
Arizona
Mesa
Apr 23, 2026
$4.3M
Ryp LabsBothell, Washington crop and food protection company that…
Washington
Bothell
Apr 20, 2026
$108K
Kora PowerRancho Cordova, California company that builds a grid-tied…
California
Rancho Cordova
Mar 25, 2026
$5.3M
AquiSenseTechnologies is a global leader in designing and manufacturing…
Kentucky
Erlanger
Mar 20, 2026
$2.2M
CarbonDropCarbon dioxide removal company developing molecular tools for…
California
Palo Alto
Mar 19, 2026
$19.6M
Next TFXDevelops ultra-high-pressure reverse osmosis (UHPRO) membranes…
California
Los Angeles
Mar 5, 2026
$1.3M
Agrela EcosystemsDevelops and sells scalable environmental sensors for…
Missouri
St. Louis
Feb 17, 2026
$415K
Verde TechnologiesInnovative company focused on transforming the solar energy…
Vermont
Burlington
Jan 8, 2026
$3.0M
CruxeonPrivate research and development company focused on creating…
California
Stockton
Dec 4, 2025
N/A
Compact Membrane Systems(CMS) is a growth-stage climate-tech company based in Delaware…
Delaware
New Castle
Nov 24, 2025
$10.3M
Positron ChargingBuilds electric-vehicle charging infrastructure for buildings…
Washington
Vancouver
Oct 3, 2025
$750K
Big BInnovative company focused on achieving social and…
Tennessee
Nashville
Sep 22, 2025
$1.6M
DayFiU.S.-based startup developing a decentralized yield protocol…
Minnesota
Minneapolis
Aug 21, 2025
$600K
ConamixIthaca, New York materials company commercializing low-cost…
New York
Ithaca
Jul 15, 2025
$6.0M
Voltic ShippingPioneering company that operates fully electric, solar-powered…
Pennsylvania
Laughlintown
Apr 8, 2025
$1.3M
Grain EcosystemBoston-based technology company focused on sustainability…
Massachusetts
Quincy
Mar 28, 2025
$880K
Volteras TechnologiesSoftware company that offers innovative technology solutions…
—
—
Mar 28, 2025
$14.6M
Liitto TechnologyHeadquartered in Palo Alto, California, focuses on pioneering…
California
Palo Alto
Mar 27, 2025
$4.7M
PollenSystems is dedicated to improving farming through advanced…
Missouri
Kansas City
Mar 27, 2025
$30.7M
SkySpecsLeading renewable energy asset management company specializing…
Michigan
Ann Arbor
Mar 17, 2025
$10.4M
MOVA TechnologiesPioneering climate technology company dedicated to developing…
Virginia
Pulaski
Mar 13, 2025
$26K
Living Ink TechnologiesPioneering biomaterials company focused on creating…
Colorado
Berthoud
Feb 28, 2025
$4.9M
MombakPioneering carbon removal company based in Brazil, dedicated…
—
—
Feb 28, 2025
$31.3M
En SolucionSolución Inc. is a pioneering company that specializes in…
Texas
Austin
Feb 27, 2025
$8.7M
Equilibrium EnergyClean energy technology company dedicated to accelerating the…
Massachusetts
Boston
Feb 25, 2025
$25.7M
Freshr Sustainable TechnologiesSpecializes in creating innovative, sustainable packaging…
—
—
Feb 19, 2025
$3.4M
EarthviewCutting-edge technology company specializing in continuous…
Texas
Dallas
Feb 17, 2025
$300K
ContinuumSpecializes in improving soil health and promoting sustainable…
Iowa
Washington
Feb 7, 2025
$224K
FreshTech SolutionsOffers advanced and sustainable technologies for cleaning…
Washington
Vancouver
Feb 5, 2025
$500K
MoteInnovative climate technology company focused on transforming…
California
Los Angeles
Feb 3, 2025
$13.1M
Topanga.ioTopanga.io is a pioneering technology company dedicated to…
California
Los Angeles
Jan 27, 2025
$7.7M
MacroCycle TechnologiesDedicated to addressing crucial environmental challenges in…
Massachusetts
Cambridge
Jan 21, 2025
$4.0M
Glimpse EngineeringInnovative company dedicated to enhancing battery quality, a…
Massachusetts
Somerville
Dec 27, 2024
$10.0M
MiticoInnovative technology company focused on carbon capture…
California
Pasadena
Dec 23, 2024
$6.4M
Solar Transport SystemsPioneering company focused on addressing transportation issues…
Florida
Palm Bay
Sep 17, 2024
$450K
DivirodBoulder, Colorado water data company that measures water…
Colorado
Boulder
Sep 6, 2024
$2.0M
Incaendium InitiativeCorporation is dedicated to addressing the challenges…
Ohio
Rocky River
Aug 2, 2024
$3.0M
ExsolveRecycling technology company specializing in the recovery of…
Minnesota
Minneapolis
Mar 21, 2023
$4.2M
Kinetic DriveCleburne, Texas company developing a mechanical flywheel…
Texas
Cleburne
Feb 6, 2023
$332K
Rho ImpactSpecializes in creating software and data products that enable…
Virginia
Charlottesville
Oct 21, 2022
$1.1M
All 55 companies · most recent filing first
Most recent filings
55All 55 companies · most recent filing first