Active: new deal Sep 2026 Verified 4 Nov 2026
At One Ventures
Climate and deep tech venture firm backing companies whose technology improves unit economics and reduces environmental footprint across air, water, soil and biodiversity.
- Type
- VC firm
- Location
- Menlo Park, California, United States
- Stages
- Seed, Series A
- Backs
- Climate and energy, Hardware
- Sectors
- Climate and cleantech, Agritech, Industrial, AI, Energy, Deep tech
- Fund size / AUM
- $375M At One Ventures II (Form D offering, 2022)
- Latest fund or filing
- 19 Dec 2025
- Portfolio mix
- Climate and energy 57%; Hardware 17%; Consumer products 13%; B2B software 3%; Marketplaces 3%; Real assets 3%; Deep tech 3% (n=30)
- Website
- atoneventures.com
Fund filings (SEC Form D)
- Latest fund on file
- At One Ventures III
- Filed
- 19 Dec 2025 (new notice)
- Fund size
- Not disclosed on the filing
- Fund vehicles filed in the last 12 months
- 1 (includes feeder and parallel vehicles)
See this fund's filings on SEC EDGAR
Contacts on file
For At One Ventures, the paid file holds: 8 named decision-makers with roles; how to pitch (the route the firm publishes).
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Notable investments
Blue EnergyMiraterraFactor2 EnergyNear Space LabsNoon
Sources
- www.sec.gov/Archives/edgar/data/2090581/000147083125000440/
- adviserinfo.sec.gov/firm/summary/307972
- www.atoneventures.com/
- www.atoneventures.com/portfolio
- www.sec.gov/Archives/edgar/data/1931830/000193183023000001/
- www.atoneventures.com/team
Last checked 4 Nov 2026. Is something wrong? Tell us.
Appears in 76 lists
Series A agritech investors in the US (15)Agritech investors in California (18)Climate tech investors in Silicon Valley (26)Energy investors in Silicon Valley (27)Industrial tech investors in Silicon Valley (33)Seed agritech investors in the US (36)Hardware investors in Silicon Valley (46)Agritech venture capital firms in the US (55)Deep tech investors in Silicon Valley (59)Series A climate tech investors in the US (60)Series A energy investors in the US (60)Series A hardware investors in the US (61)Series A industrial tech investors in the US (61)Series A agritech investors (65)Series A investors in Silicon Valley (67)Energy investors in the San Francisco Bay Area (69)Industrial tech investors in the San Francisco Bay Area (69)Climate tech investors in the San Francisco Bay Area (71)Series A deep tech investors in the US (73)Series A hardware investors (82)Hardware investors in the San Francisco Bay Area (89)Energy investors in California (93)Industrial tech investors in California (95)Seed agritech investors (97)Climate tech investors in California (98)Deep tech investors in the San Francisco Bay Area (110)Series A investors in the San Francisco Bay Area (112)Series A industrial tech investors (113)Hardware investors in California (120)Series A investors in California (136)Agritech investors (137)Deep tech investors in California (138)Series A energy investors (139)Seed energy investors in the US (140)Seed investors in Silicon Valley (152)Seed industrial tech investors in the US (160)Seed climate tech investors in the US (162)AI investors in Silicon Valley (172)Seed hardware investors in the US (176)Seed deep tech investors in the US (205)Seed hardware investors (225)Energy venture capital firms in the US (249)Seed industrial tech investors (249)Climate tech venture capital firms in the US (256)Seed energy investors (261)Series A climate tech investors (263)Industrial tech venture capital firms in the US (267)Hardware venture capital firms in the US (272)Series A AI investors in the US (280)Series A deep tech investors (293)Deep tech venture capital firms in the US (322)Seed investors in the San Francisco Bay Area (324)Hardware investors (333)Venture capital firms in Silicon Valley (341)AI investors in the San Francisco Bay Area (364)Series A investors in the US (372)Industrial tech investors (387)Seed investors in California (415)Energy investors (421)Seed climate tech investors (458)AI investors in California (464)Series A AI investors (500)Seed deep tech investors (555)Climate tech investors (660)Seed AI investors in the US (724)Deep tech investors (763)Venture capital firms in the San Francisco Bay Area (768)Series A investors (864)Venture capital firms in California (1,038)Seed investors in the US (1,043)Seed AI investors (1,082)AI venture capital firms in the US (1,112)Active venture capital firms in the US (1,574)AI investors (1,576)Seed investors (1,892)Venture capital firms in the US (2,975)