At One Ventures

Investment Focus

Investment Stages

Geographic Focus

Europe
Global
United States

Investment Thesis

At One Ventures is a San Francisco-based firm that funds early-stage companies using disruptive deep tech to improve the unit economics of established industries while sharply reducing their environmental footprint. It targets solutions across air, water, soil and biodiversity, spanning buildings, energy, transportation, food and agriculture. Its second fund closed at $375 million in October 2023.

How to Pitch At One Ventures

No Stated Policy
At One Ventures hasn't published an outreach policy. A short, specific cold email is the safest default.

Who To Contact

Brian Steinberg
Investor
climate
seed-stage
LinkedIn
Helen Lin
Founder
climate tech
LinkedIn
Source

Portfolio Highlights

Portal BLUE ENERGY
MIRATERRA
FACTOR2 ENERGY
NEAR SPACE LABS
BLUE ENERGY
NOON Batteries
MIGHTYFLY
COLOSSAL

Team

Auto-detected from At One Ventures's website.

Brian Steinberg
Investor

Climate investing expert from ZORA Ventures with experience in urban development and corporate strategy.

climate
seed-stage
Checked Oct 2026
Helen Lin
Founder

Corporate finance expert with 20+ years across four continents in mergers, investments, and impact finance.

climate tech
Checked Oct 2026
Laurie Menoud
Founder

Biotechnologist with decade of deep tech commercialization and venture capital experience at BASF and SRI International.

deep tech
materials
biology
chemicals
Checked Oct 2026
Tom Chi
Founder

Google X founding member and astrophysical researcher turned climate tech investor with hardware/software expertise.

climate tech
deep tech
Checked Oct 2026

Focus and check size from the firm's website. Website reachable as of Oct 2026.

Ready to Reach At One Ventures?

A fit check scores your pitch against their thesis, stage and ticket. An email draft uses their real deals and thesis, not a template.