Funded Cleantech startups in California
13 cleantech startups in California have filed a Form D with the SEC and together report $469.7M raised. Sila Nanotechnologies has the largest latest round, at $309.6M. Amounts are as reported on the filing, not estimates.
Updated Jul 17, 2026
- Companies
- 13
- Total raised
- $469.7M
- Filings
- 17
- Median round
- $7.1M
- Cities
- 9
CompanyCityLast filingLatest round
Sila NanotechnologiesSilicon anode powder that replaces graphite in batteries
Alameda
Jul 17, 2026
$309.6M
CopperBattery-equipped induction range for standard outlets
Berkeley
Jul 15, 2026
$9.8M
NovaSolixCarbon nanotube antenna solar cells
Newark
Jun 28, 2026
$125K
CapturaCarbon removal that pulls CO2 from seawater
Pasadena
Jun 18, 2026
$53.5M
Lilac SolutionsIon-exchange beads that extract lithium from brine
Oakland
Jun 12, 2026
$34.4M
KoraHome battery, smart panel and inverter in one system
Rancho Cordova
Mar 25, 2026
$5.3M
CarbonDropEngineered seaweed that captures and stores carbon dioxide
Palo Alto
Mar 19, 2026
$19.6M
Next TFXReverse osmosis membranes for brine and lithium recovery
Los Angeles
Mar 5, 2026
$1.3M
CruxeonPrivate research and development company focused on creating…
Stockton
Dec 4, 2025
N/A
Liitto TechnologyComputing that runs on surplus clean energy
Palo Alto
Mar 27, 2025
$4.7M
MoteHydrogen from waste biomass with carbon storage
Los Angeles
Feb 3, 2025
$13.1M
Topanga.ioReusable packaging programs for food service
Los Angeles
Jan 27, 2025
$7.7M
MiticoMetal carbonate carbon capture for industrial plants
Pasadena
Dec 23, 2024
$6.4M
All 13 companies · most recent filing first
Most recent filings
13All 13 companies · most recent filing first