93 energy investors in California
We list 93 energy investors in California as of November 2026: each has an SEC filing on file, and the list was last checked on 6 Nov 2026. The cities with the most head offices on this list are San Francisco (28), Palo Alto (10) and Los Altos (6).
Top 5 energy investors in California, ranked by recent fund activity
Among firms with a published profile and a dated fund or deal in the last 24 months. The rule: Activity score out of 100: recency of the latest fund filing or dated deal (35: full marks within 3 months, then stepping down at 6, 12 and 24 months), share of the observed portfolio in this sector (25; half of that when the sector is stated only), stated focus on the US (15: full marks when the firm names the US as where it invests, half when it says global), size of the fund on file on a log scale (15) and completeness of the public record (10). Regional focus is our research, not an SEC figure. It is a measure of activity and fit, not of quality or returns. The same rule orders the whole list; it is repeated in the method box.
Toyota Ventures
Type: Corporate VC · HQ: Los Altos, CA · Stages: Seed, Series A · Focus: Energy, AI, Climate Tech, Industrial Tech · Latest activity: Portfolio news, Oct 2026 · Private fund assets: $928M (SEC Form ADV)
Portfolio news dated Oct 2026; $928M on file (SEC Form ADV); states energy as a focus; names the US as where it invests.
Bison Ventures
Type: VC firm · HQ: San Francisco, CA · Stages: Pre-seed, Seed, Series A, Series B · Focus: Energy, AI, Healthtech, Biotech · Latest activity: New fund, Oct 2026 · Fund size on file: $160M (SEC Form D, 2025)
Latest fund filing dated Oct 2026; $160M fund on file (SEC Form D, 2025); states energy as a focus; names the US as where it invests; 2 named decision-makers on file.
Hallstone Ventures
Type: VC firm · HQ: Hollywood, CA · Stages: Seed · Focus: Energy, Space, Robotics, Media · Latest activity: New fund, Oct 2026 · Fund size on file: $11M (SEC Form D, 2025)
Latest fund filing dated Oct 2026; $11M fund on file (SEC Form D, 2025); states energy as a focus; names the US as where it invests; 5 named decision-makers on file.
Riot Ventures
Type: VC firm · HQ: Venice, CA · Focus: Energy, AI, Defense Tech, Industrial Tech · Latest activity: New deal, Jul 2026 · Fund size on file: $160M (SEC Form D, 2024)
Dated new deal in Jul 2026; $160M fund on file (SEC Form D, 2024); states energy as a focus; names the US as where it invests; 2 named decision-makers on file.
G2 Venture Partners
Type: VC firm · HQ: Portola Valley, CA · Stages: Series B, Growth · Focus: Energy, AI, Industrial Tech, Mobility · Latest activity: New deal, Aug 2026 · Fund size on file: $53M (SEC Form D, 2026)
Dated new deal in Aug 2026; $53M fund on file (SEC Form D, 2026); states energy as a focus; names the US as where it invests; 8 named decision-makers on file.
First 25 of 93 energy investors in California
| Investor | Type | HQ | Stagesour research | Focusour research | Latest fund or deal | Fund sizeas filed or stated | Checked | Contacts |
|---|---|---|---|---|---|---|---|---|
| Toyota Ventures | Corporate VC | Los Altos, CA | Seed, Series A | Energy, AI, Climate Tech, Industrial Tech | Portfolio news, Oct 2026 | $928M (SEC Form ADV) | 5 Nov 2026 | LinkedIn page · Unlock |
| Bison Ventures | VC firm | San Francisco, CA | Pre-seed, Seed, Series A, Series B | Energy, AI, Healthtech, Biotech | New fund, Oct 2026 | $160M (SEC Form D, 2025) | 4 Nov 2026 | 2 names, firm email · Unlock |
| Hallstone Ventures | VC firm | Hollywood, CA | Seed | Energy, Space, Robotics, Media | New fund, Oct 2026 | $11M (SEC Form D, 2025) | 4 Nov 2026 | 5 names · Unlock |
| Riot Ventures | VC firm | Venice, CA | Energy, AI, Defense Tech, Industrial Tech | New deal, Jul 2026 | $160M (SEC Form D, 2024) | 4 Nov 2026 | 2 names · Unlock | |
| G2 Venture Partners | VC firm | Portola Valley, CA | Series B, Growth | Energy, AI, Industrial Tech, Mobility | New deal, Aug 2026 | $53M (SEC Form D, 2026) | 4 Nov 2026 | 8 names, firm email · Unlock |
| Electric Capital | VC firm | Palo Alto, CA | Pre-seed, Seed, Series A | Energy, Crypto and Web3, AI, Fintech | New fund, Sep 2026 | $532M (SEC Form D, 2021) | 4 Nov 2026 | 8 names, firm email · Unlock |
| At One Ventures | VC firm | Menlo Park, CA | Seed, Series A | Energy, Climate Tech, Agritech, Industrial Tech | New deal, Sep 2026 | $375M (SEC Form D, 2022) | 4 Nov 2026 | 8 names · Unlock |
| Initialized | VC firm | San Francisco, CA | Pre-seed, Seed | Energy, AI, Generalist, Fintech | New fund, Sep 2026 | $520M (SEC Form D, 2021) | 4 Nov 2026 | 8 names · Unlock |
| DCVC | VC firm | Palo Alto, CA | Energy, Healthtech, AI, Biotech | New fund, Oct 2026 | $800M (SEC Form D, 2025) | 4 Nov 2026 | 4 names · Unlock | |
| OpenAI Startup Fund | Corporate VC | San Francisco, CA | Seed | Energy, AI, Healthtech, Legal Tech | New fund, Aug 2026 | $400M (SEC Form D, 2026) | 4 Nov 2026 | 2 names, firm email · Unlock |
| Brainstorm Ventures | VC firm | San Francisco, CA | Seed | Energy, AI, Fintech, Generalist | New fund, Jun 2026 | $25M (SEC Form D, 2026) | 4 Nov 2026 | 5 names · Unlock |
| Westly Capital Partners | VC firm | Menlo Park, CA | Pre-seed, Seed, Series A, Series B, Growth | Energy, AI, Industrial Tech, Cybersecurity | New fund, May 2026 | $500M (SEC Form D, 2026) | 4 Nov 2026 | 8 names · Unlock |
| M13 | VC firm | Los Angeles, CA | Seed, Series A | Energy, AI, Healthtech, Ecommerce | New fund, Sep 2026 | $400M (SEC Form D, 2021) | 4 Nov 2026 | 8 names · Unlock |
| Future Ventures | VC firm | Los Altos, CA | Seed | Energy, Healthtech, AI, Biotech | New fund, Oct 2026 | $200M (SEC Form D, 2021) | 4 Nov 2026 | 4 names · Unlock |
| Zacua Ventures | VC firm | San Mateo, CA | Pre-seed, Seed | Energy, AI, Proptech, Industrial Tech | New deal, Oct 2026 | $89M (SEC Form D, 2025) | 4 Nov 2026 | 7 names · Unlock |
| Earthshot Ventures | VC firm | San Francisco, CA | Pre-seed, Seed, Series A, Series B | Energy, AI, Industrial Tech, Proptech | New fund, Oct 2026 | $77M (SEC Form D, 2026) | 4 Nov 2026 | 8 names, firm email · Unlock |
| Julian Capital: Deeptech Seed Fund | VC firm | San Francisco, CA | Pre-seed, Seed | Energy, Deep Tech, Healthtech, Climate Tech | New fund, Aug 2026 | $51M (SEC Form D, 2026) | 4 Nov 2026 | 5 names · Unlock |
| Phoenix Venture Partners | VC firm | San Mateo, CA | Seed | Energy, AI, Healthtech, Quantum | Portfolio news, Jul 2026 | $109M (SEC Form D, 2021) | 5 Nov 2026 | 8 names · Unlock |
| Refactor Capital | VC firm | Burlingame, CA | Seed | Energy, AI, Healthtech, Biotech | New fund, May 2026 | $50M (SEC Form D, 2021) | 4 Nov 2026 | 3 names · Unlock |
| Longrun Capital | VC firm | San Francisco, CA | Seed, Series A | Energy, Climate Tech, Industrial Tech, AI | New deal, Sep 2026 | $22M (SEC Form D, 2026) | 4 Nov 2026 | 4 names · Unlock |
| SV Angel | VC firm | San Francisco, CA | Seed, Series B, Growth | Energy, AI, Consumer, Crypto and Web3 | New fund, Jun 2026 | $575M (SEC Form D, 2025) | 4 Nov 2026 | 8 names · Unlock |
| B Capital | VC firm | Manhattan Beach, CA | Seed, Series A, Series B, Growth | Energy, AI, Fintech, Healthtech | New fund, Jul 2025 | $307M (SEC Form D, 2023) | 4 Nov 2026 | 8 names, firm email · Unlock |
| Spatial Capital | VC firm | Mill Valley, CA | Pre-seed, Seed | Energy, AI, Proptech, Robotics | New fund, Apr 2026 | $5M (SEC Form D, 2023) | 4 Nov 2026 | 1 name · Unlock |
| Starshot Capital | VC firm | Los Angeles, CA | Seed | Energy, Climate Tech, AI, Mobility | New deal, Jul 2026 | $100M (SEC Form D, 2026) | 4 Nov 2026 | 8 names · Unlock |
| Emergence Capital | VC firm | San Francisco, CA | Seed | Energy, AI, Fintech, Edtech | New fund, Oct 2026 | 4 Nov 2026 | 8 names, firm email · Unlock |
You are seeing 25 of 93. The full list adds 68 more investors and 394 named decision-makers.
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How these 93 break down
By metro area
| Metro area | On this list | Share |
|---|---|---|
| The San Francisco Bay Area | 69 | 74% |
| Silicon Valley | 27 | 29% |
| Los Angeles | 13 | 14% |
| San Diego | 2 | 2% |
Silicon Valley is counted inside the San Francisco Bay Area as well.
By city
| City | On this list | Share |
|---|---|---|
| San Francisco | 28 | 30% |
| Palo Alto | 10 | 11% |
| Los Altos | 6 | 6% |
| Menlo Park | 6 | 6% |
| Santa Monica | 5 | 5% |
| Mill Valley | 4 | 4% |
| San Mateo | 3 | 3% |
| Venice | 2 | 2% |
| Los Angeles | 2 | 2% |
| Burlingame | 2 | 2% |
By stage
| Stage | On this list | Share |
|---|---|---|
| Pre-Seed | 25 | 27% |
| Seed | 58 | 62% |
| Series A | 19 | 20% |
| Series B | 8 | 9% |
| Growth | 6 | 6% |
Stage is our research. A firm can back more than one stage.
By type
| Type | On this list | Share |
|---|---|---|
| VC firm | 90 | 97% |
| Corporate VC | 2 | 2% |
Method and limits
- Source
- All 93 rows carry an SEC filing (Form D or Form ADV). All 93 have a website we checked. Filing date and fund size are SEC data where a filing exists. Stage, sector and check size are our research.
- Inclusion rule
- Organizations that back startups. Individuals, buyout funds and firms we found to be inactive are left out. Sector: the firm states energy as a focus on its own site, or we observed it in the firm's portfolio. Place: head office in California.
- Order
- Firms with a published profile come first. Activity score out of 100: recency of the latest fund filing or dated deal (35: full marks within 3 months, then stepping down at 6, 12 and 24 months), share of the observed portfolio in this sector (25; half of that when the sector is stated only), stated focus on the US (15: full marks when the firm names the US as where it invests, half when it says global), size of the fund on file on a log scale (15) and completeness of the public record (10). Regional focus is our research, not an SEC figure. It is a measure of activity and fit, not of quality or returns.
- Last refreshed
- November 2026. Rows on this list were checked between 4 Nov 2026 and 6 Nov 2026.
- Fill rates
- Of 93 rows: stage 69, sector 93, fund size 80, website 93. In the paid file: named decision-makers on 86 rows, firm email on 26, LinkedIn page on 41, check size on 7.
- Corrections
- Email [email protected] or use the update form. We act within 5 working days.
Questions
How many energy investors in California are there?
We list 93 as of November 2026. 47 of the 93 have a fund filing or a dated deal in the last 12 months. The cities with the most are San Francisco (28), Palo Alto (10) and Los Altos (6).
Which energy investors in California raised a new fund in the last 12 months?
39 of the 93 have a fund filing dated in the last 12 months. The most recent on this list are Future Ventures (Oct 2026), Tyche Partners VEIR (Oct 2026) and Bison Ventures (Oct 2026).
What is the typical fund size of energy investors in California?
The median fund size on file for this list is $80M, across the 64 firms with a size on an SEC Form D. The fund on file is each firm's main fund, which is not always its newest. The other 29 do not disclose a size there.
How do I contact energy investors in California?
The paid file holds 394 named decision-makers across 86 of these 93 and a firm email for 26. We publish the address a firm lists itself, never a personal email. Each free row links to a profile with the firm's website.
Where does the data on energy investors in California come from?
All 93 rows have an SEC filing on file (Form D or Form ADV). Filing date and fund size come from the filing. Stage, sector and check size are our research. Rows on this list were last checked on 6 Nov 2026 at the latest. The whole file is re-verified twice a year.
Broader lists
Energy venture capital firms in the US (249)Venture capital firms in California (1,038)
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