Propeller
Boston, Massachusettspropellervc.com
Overview
Propeller is a climate-tech venture capital fund founded in 2022 that invests in and builds ocean-climate companies. It focuses on pre-seed to Series A companies using science and technology to address the climate crisis, with investment themes of Ocean Carbon, Ocean Organics, and Ocean Industrials.
Portfolio Companies
24
Website
propellervc.comInvestments
| Company | Date | Stage | Lead |
|---|---|---|---|
| Allium Engineering | Jun 2026 | Series A | Lead |
| Aquatic Labs | Mar 2026 | Seed | Co-investor |
| pHathom Technologies | Feb 2026 | Seed | Lead |
| pHathom Technologies | Jan 2026 | Seed | Lead |
| Ciphero | Dec 2025 | Pre Seed | Co-investor |
Key People
Brian Halligan
Co-Founder & Partner
Sector & Stage Mix
Industry, funding stage, and valuation band breakdowns.
