---
title: "263 Series A Climate Tech Investors (Nov 2026)"
last_updated: "2026-11-09"
rows: "263"
free_rows: "25"
source: "SEC Form D filings and our own research"
canonical: "https://theinvestordatabase.com/lists/series-a-climate-tech-investors/"
---

# 263 Series A climate tech investors

We list 263 Series A climate tech investors as of November 2026: 58 have an SEC filing on file and 205 were checked on the firm's own website or an official register, and the list was last checked on 9 Nov 2026. The states with the most are California (24), New York (8) and Illinois (4).

- 263 investors
- 123 with a fund filing or dated deal in the last 12 months
- $78M median fund size on file (SEC Form D, 44 firms)
- 1,177 named decision-makers on file

## First 25 of 263 Series A climate tech investors

| Investor | Type | HQ | Stages (our research) | Focus (our research) | Latest fund or deal | Fund size | Checked | Profile |
|---|---|---|---|---|---|---|---|---|
| At One Ventures | VC firm | Menlo Park, CA | Seed, Series A | Climate Tech, Agritech, Industrial Tech, AI | New deal, Sep 2026 | $375M (SEC Form D, 2022) | 2026-11-04 | https://theinvestordatabase.com/investors/at-one-ventures/ |
| Aramco Ventures | Corporate VC | Saudi Arabia (London office) | Seed, Series A, Growth, Late stage | Climate Tech, Energy, Industrial Tech, AI | Portfolio news, Sep 2026 | $7.5B (own site) | 2026-11-05 | https://theinvestordatabase.com/investors/aramco-ventures/ |
| Toyota Ventures | Corporate VC | Los Altos, CA | Seed, Series A | Climate Tech, AI, Energy, Industrial Tech | Portfolio news, Oct 2026 | $928M (SEC Form ADV) | 2026-11-05 | https://theinvestordatabase.com/investors/toyota-ventures/ |
| Energize Ventures | VC firm | Chicago, IL | Series A, Series B, Growth, Any stage | Climate Tech, Energy, AI, Industrial Tech | New deal, Sep 2026 | $328M (SEC Form D, 2020) | 2026-11-05 | https://theinvestordatabase.com/investors/energize-ventures/ |
| Longrun Capital | VC firm | San Francisco, CA | Seed, Series A | Climate Tech, Industrial Tech, AI, Energy | New deal, Sep 2026 | $22M (SEC Form D, 2026) | 2026-11-04 | https://theinvestordatabase.com/investors/longrun-capital/ |
| Energy Impact Partners | VC firm | United States (London office) | Seed, Series A, Series B, Growth | Climate Tech, Energy, AI, Cybersecurity | Portfolio news, Nov 2026 | $4.5B (own site) | 2026-11-05 | https://theinvestordatabase.com/investors/energy-impact-partners/ |
| Clean Energy Ventures | VC firm | Boston, MA | Seed, Series A | Climate Tech, Energy, Fintech, Deep Tech | New deal, May 2026 | $306M (SEC Form D, 2022) | 2026-11-05 | https://theinvestordatabase.com/investors/clean-energy-ventures/ |
| Blackhorn Ventures | VC firm | Denver, CO | Seed, Series A | Climate Tech, AI, Energy, Developer Tools | New deal, Jul 2026 | $250M (SEC Form D, 2022) | 2026-11-04 | https://theinvestordatabase.com/investors/blackhorn-ventures/ |
| Innovation Industries | VC firm | Amsterdam, Netherlands | Series A, Series B, Growth | Climate Tech, Deep Tech, AI, Healthtech | New fund, Oct 2026 | €1.0B (own site) | 2026-11-07 | https://theinvestordatabase.com/investors/innovation-industries-capital-partners-b-v/ |
| Seraphim Space | VC firm | London, United Kingdom | Seed, Series A, Growth | Climate Tech, Space, Mobility, Deep Tech | New fund, Oct 2026 | $1.0B (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/seraphim-space/ |
| UVC Partners | VC firm | Garching, Germany | Pre-seed, Seed, Series A | Climate Tech, Deep Tech, Mobility, AI | New deal, Sep 2026 | €800M (own site) | 2026-11-07 | https://theinvestordatabase.com/investors/unternehmertum-venture-capital-partners-gmbh-2/ |
| Extantia | VC firm | Berlin, Germany | Seed, Series A | Climate Tech, Energy, Industrial Tech, Agritech | New deal, Aug 2026 | €204M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/extantia/ |
| Overlap Holdings | VC firm | Hicksville, NY | Seed, Series A, Series B | Climate Tech, AI, Energy, Healthtech | New fund, Oct 2026 | $16M (SEC Form D, 2023) | 2026-11-04 | https://theinvestordatabase.com/investors/overlap-holdings/ |
| Rubio Impact Ventures | VC firm | Amsterdam, Netherlands | Seed, Series A | Climate Tech, Impact, Energy, Food and Beverage | New fund, Sep 2026 | €226M (own site) | 2026-11-07 | https://theinvestordatabase.com/investors/rubio-fund-management-b-v/ |
| PXN Ventures | Fund manager | Manchester, United Kingdom | Pre-seed, Seed, Series A, Growth | Climate Tech, Generalist, SaaS, Deep Tech | Portfolio news, Nov 2026 | £760M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/pxn-ventures/ |
| Clean Growth Fund | VC firm | United Kingdom | Seed, Series A | Climate Tech, Energy, Mobility, Industrial Tech | New fund, Sep 2026 |  | 2026-11-04 | https://theinvestordatabase.com/investors/clean-growth-fund/ |
| eCAPITAL | VC firm | Münster, Germany | Seed, Series A, Series B | Climate Tech, Deep Tech, AI, Cybersecurity | Portfolio news, Sep 2026 | €400M (own site) | 2026-11-07 | https://theinvestordatabase.com/investors/ecapital-entrepreneurial-partners-ag/ |
| Mercia Asset Management | Fund manager | Henley-in-Arden, United Kingdom | Seed, Series A, Growth | Climate Tech, Healthtech, Future of Work, AI | Portfolio news, Oct 2026 | £400M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/mercia/ |
| The FSE Group | Fund manager | Fleet, United Kingdom | Seed, Series A, Growth | Climate Tech, Generalist, Healthtech, SaaS | Portfolio news, Sep 2026 | £395M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/the-fse-group/ |
| Brightlands Venture Partners (BVP) | VC firm | Geleen, Netherlands | Seed, Series A | Climate Tech, Healthtech, Agritech, Food and Beverage | Portfolio news, Sep 2026 | €120M (own site) | 2026-11-07 | https://theinvestordatabase.com/investors/brightlands-venture-partners/ |
| ACF Investors | VC firm | Sheffield, United Kingdom | Seed, Series A | Climate Tech, Fintech, Generalist, Consumer | Portfolio news, Oct 2026 | £100M (own site) | 2026-11-04 | https://theinvestordatabase.com/investors/acf-investors/ |
| Angelor | VC firm | Lyon, France | Seed, Series A | Climate Tech, Healthtech, Biotech, Medtech | New deal, Sep 2026 | €100M (own site) | 2026-11-07 | https://theinvestordatabase.com/investors/angelor/ |
| M13 | VC firm | Los Angeles, CA | Seed, Series A | Climate Tech, AI, Healthtech, Ecommerce | New fund, Sep 2026 | $400M (SEC Form D, 2021) | 2026-11-04 | https://theinvestordatabase.com/investors/m13/ |
| Endeit Capital | VC firm | Amsterdam, Netherlands | Series A, Series B, Growth | Climate Tech, Fintech, AI, Cybersecurity | New deal, Oct 2026 | €430M (own site) | 2026-11-07 | https://theinvestordatabase.com/investors/endeit-capital-b-v/ |
| Khosla Ventures | VC firm | Menlo Park, CA | Pre-seed, Seed, Series A, Growth | Climate Tech, AI, Consumer, B2B | New fund, Aug 2026 | $1.9B (SEC Form D, 2025) | 2026-11-04 | https://theinvestordatabase.com/investors/khosla-ventures/ |

You are seeing 25 of 263. The full list adds 238 more investors and 1,177 named decision-makers.

Get all 263 investors and 1,177 named contacts, $49, one-time: https://theinvestordatabase.com/buy/list/series-a-climate-tech-investors
This page: https://theinvestordatabase.com/lists/series-a-climate-tech-investors/

## Method and limits
- Source: 58 of the 263 rows carry an SEC filing (Form D or Form ADV). All 263 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 climate tech as a focus on its own site, or we observed it in the firm's portfolio. Stage: the firm states that it invests at Series A.
- Order: 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), stage focus (15: all of it when Series A is the only stage the firm states, split evenly when it states more), size of the fund on file on a log scale (15) and completeness of the public record (10). Stage focus is our research, not an SEC figure. It is a measure of activity and fit, not of quality or returns.
- Fill rates: Of 263 rows: stage 263, sector 263, fund size 139, website 263. In the paid file: named decision-makers on 233 rows, firm email on 153, LinkedIn page on 195, check size on 102.

## Questions
### How many Series A climate tech investors are there?
We list 263 as of November 2026. 123 of the 263 have a fund filing or a dated deal in the last 12 months.

### Which Series A climate tech investors raised a new fund in the last 12 months?
24 of the 263 have a fund filing dated in the last 12 months. The most recent on this list are Overlap Holdings (Oct 2026), Bison Ventures (Oct 2026) and Earthshot Ventures (Oct 2026).

### What is the typical fund size of Series A climate tech investors?
The median fund size on file for this list is $78M, across the 44 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 219 do not disclose a size there.

### How do I contact Series A climate tech investors?
The paid file holds 1,177 named decision-makers across 233 of these 263 and a firm email for 153. 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 Series A climate tech investors come from?
58 of the 263 rows have an SEC filing on file (Form D or Form ADV) and 205 were checked on the firm's own website or an official register. 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 9 Nov 2026 at the latest. The whole file is re-verified twice a year.