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Propeller Ventures

Venture Capital

Early-stage venture fund investing in ocean-climate startups at the intersection of ocean science and climate technology.

Boston, United States · 5+ investments · 4 portfolio companies

Pre-Seed
Seed
Early Stage
Late Stage
Growth
Climate Tech
ocean technology
Sustainability
Education
Robotics
Defense Tech
SaaS
Developer Tools
Healthcare
Artificial Intelligence
Crypto & Web3
AR/VR
Logistics
Fintech
Food & Beverage
Deep Tech
E-Commerce
Transportation
Gaming
PropTech
Insurtech
Biotech
Cybersecurity
Headquarters
Boston, United States
Founded
2022
Website
propellervc.com
AUM
$118.0M
Portfolio Companies
4
Total Investments
5
Last Investment
Jul 2025
Geographic Focus
United States

Investment Thesis

Invests in early-stage startups building at the ocean-climate nexus, from pre-seed to Series A.

Propeller Ventures is a Venture Capital firm based in Boston, United States. It has made 5 investments in Climate Tech and ocean technology, including Nexxa.ai, Nestrom and Hotplate.

Portfolio4

Co-investors17

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17 co-investors across 17 shared portfolio companies — who they back alongside, and how often they lead.

Venture Capital ×12 · Accelerator ×3 · Corporate VC ×1 · 14 shared rounds

Investment History

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