Back to Free Startup Funding Database

Who Funds CleanTech Startups in California?

12 venture funds, 6 angel networks, 6 accelerator programs and 6 active federal grants for cleantech founders in California — sourced from SEC Form D filings and Grants.gov.

3125
VC Funds Based in California
$309.7B
Capital in SEC Form D Filings
178
New Fund Filings (12 mo)

Venture Capital Funds Investing in CleanTech — California

DCVC Climate Select, L.P.

Location
PALO ALTO, CA
Fund Size (Form D)
$300M
Stage Focus
growth
Typical Check
$5M-$20M
Latest SEC Filing
Dec 9, 2022
Full profile & contacts →Website

Energy Innovation Capital II, LP

Location
ORINDA, CA
Fund Size (Form D)
$275M
Stage Focus
growth
Latest SEC Filing
Nov 6, 2020
Full profile & contacts →Website

Plug & Play Sustainability Fund I, L.P.

Location
SUNNYVALE, CA
Fund Size (Form D)
$100M
Stage Focus
series-a
Typical Check
$2.0M - $6.0M (typical: $3.0M)
Latest SEC Filing
Feb 13, 2023
Full profile & contacts →Website

Island Green Capital Fund I LP

Location
LOS ANGELES, CA
Fund Size (Form D)
$52M
Stage Focus
series-a
Latest SEC Filing
Jan 1, 2023
Full profile & contacts →Website

Island Green IA LP

Location
Los Angeles, CA
Fund Size (Form D)
$41M
Stage Focus
seed
Latest SEC Filing
Apr 28, 2026
Full profile & contacts →Website

Clocktower Climate & Sustainability Feeder I LP

Location
SANTA MONICA, CA
Fund Size (Form D)
$30M
Stage Focus
seed
Typical Check
$409K - $1.2M (typical: $818K)
Latest SEC Filing
Jan 31, 2022
Full profile & contacts →Website

BEVC PSB Climate Fund, L.P.

Location
BERKELEY, CA
Fund Size (Form D)
$25M
Stage Focus
seed
Typical Check
$341K - $1.0M (typical: $682K)
Full profile & contacts →Website

DCVC Climate Access, L.P.

Location
PALO ALTO, CA
Fund Size (Form D)
$20M
Stage Focus
seed
Typical Check
$275K - $826K (typical: $551K)
Latest SEC Filing
Nov 15, 2024
Full profile & contacts →Website

Green Meadow I, L.P.

Location
Los Angeles, CA
Fund Size (Form D)
$20M
Stage Focus
seed
Latest SEC Filing
Jul 23, 2020
Full profile & contacts →Website

Aina Climate AI Ventures I, L.P.

Location
REDWOOD CITY, CA
Fund Size (Form D)
$17M
Stage Focus
seed
Typical Check
$250K - $750K (typical: $500K)
Full profile & contacts →Website

Island Green X LP

Location
LOS ANGELES, CA
Fund Size (Form D)
$15M
Stage Focus
seed
Typical Check
$176K - $526K (typical: $351K)
Latest SEC Filing
Apr 22, 2024
Full profile & contacts →Website

Island Green OS LP

Location
Los Angeles, CA
Fund Size (Form D)
$10M
Stage Focus
seed
Latest SEC Filing
Apr 17, 2026
Full profile & contacts →Website

Angel Networks in California

Keiretsu Forum

Location
San Ramon, CA
Members
3000
Avg Check
$100K
Website →

Keiretsu Forum

Location
Palo Alto, CA
Members
1000
Avg Check
$100K
Website →

Tech Coast Angels

Location
San Diego, CA
Members
400
Avg Check
$35K
Website →

Investors Circle

Location
San Francisco, CA
Members
250
Avg Check
$75K
Website →

Stanford Angels and Entrepreneurs

Location
Stanford, CA
Members
200
Avg Check
$75K
Website →

Toniic

Location
San Francisco, CA
Members
200
Avg Check
$100K
Website →

Accelerators & Startup Programs for CleanTech Founders

Black Ambition

Black Ambition

Funding: $1M

Apply →

Elemental Impact

Elemental Impact

Funding: $1M

Apply →

Lemnos

Lemnos

Funding: $500K

Apply →

Y Combinator

Y Combinator

Funding: $500K

Apply →

Alliance DAO

Alliance DAO

Funding: $250K – $500K

Apply →

Contrary Capital

Contrary Capital

Funding: $500K

Apply →

See the full accelerator directory for industry-specific programs.

Active Federal Grant Opportunities

Cooperative Agreement for affiliated Partner with the Rocky Mountain Cooperative Ecosystem Studies Unit

Geological Survey

Award
$1.00 – $49K
Deadline
Jun 29, 2026
View on Grants.gov →

FY 2026 Future Leaders Exchange Global (FLEX Global)

Bureau Of Educational and Cultural Affairs

Award
$400K – $22M
Deadline
Jun 29, 2026
View on Grants.gov →

Influenza Modeling and Forecasting

Centers for Disease Control - NCIRD

Deadline
Jun 29, 2026
View on Grants.gov →

Pacific Coastal Salmon Recovery Fund (Annual Appropriations and IIJA Funds)

DOC NOAA - ERA Production

Award
Undisclosed – $25M
Deadline
Jun 29, 2026
View on Grants.gov →

FY 2026 SNAP Process and Technology Improvement

Food and Nutrition Service

Award
$20K – $2M
Deadline
Jun 29, 2026
View on Grants.gov →

Methyl Bromide Transition Program

National Institute of Food and Agriculture

Award
$500K
Deadline
Jun 29, 2026
View on Grants.gov →

Browse all federal startup grants with deadlines and eligibility.

Data sources: Fund data comes from SEC Form D filings (EDGAR), updated nightly. Grant opportunities come from Grants.gov. Angel network and accelerator data is curated from public sources. Figures shown are the amounts reported in regulatory filings, not estimates. Last refreshed June 2026.

All California VC Funds

Browse every venture fund based in California.

CleanTech Funding Guide

National cleantech investor landscape.

Federal Grants Database

Non-dilutive funding with live deadlines.