Propeller VC is a Boston-based early-stage venture capital firm focused on climate, sustainability, and resource-efficiency technologies, backing companies that materially reduce emissions, waste, and environmental impact. The firm invests as a lead or co-lead investor and is known for taking meaningful ownership stakes consistent with institutional seed investing.

Seed: Core focus; Propeller frequently leads or co-leads seed rounds.
Pre-Seed: Selective participation when technology risk is high but impact and founder quality are exceptional.
Series A: Active follow-on investor in top-performing portfolio companies.

Typical Check Size: ~$1M–$4M at seed (sometimes smaller at pre-seed).
Typical Ownership Taken: ~8%–15% at entry.
Target Ownership (When Leading): Often ~10%+, consistent with institutional seed leads.
Ownership Style: Minority but influential stake.
Equity Structure: Priced equity rounds preferred; SAFEs/notes used selectively at pre-seed.
Board Seats: Often takes a board seat or board observer role when leading.
Control: No control, but active governance and strategic involvement.

Submission Method: Warm introductions strongly preferred; selective inbound via website or climate-tech ecosystem partners.
Lead Position: Propeller is comfortable leading rounds and setting terms.
Review Cadence: Rolling, thesis-driven.

Sector Focus: Climate tech, energy transition, food/ag, industrial decarbonization, circular economy, water, materials, and supply-chain sustainability.
Geography: Primarily U.S. and Europe.
Stage: Seed preferred; pre-seed selectively.
Company Profile: Venture-scale businesses with defensible technology and measurable climate impact.
Team: Strong technical founders with execution capability and long-term vision.

Initial Intake: Deep review of climate impact, technology differentiation, and founder credibility.
 Partner Diligence: Technical, market, regulatory, and lifecycle-impact diligence.
 Impact Assessment: Evaluation of emissions reduction or sustainability leverage as a core investment driver.
 Deal Structuring: Ownership sized intentionally to justify lead-level engagement and follow-on support.

Strategic Capital: Institutional seed capital with conviction-level ownership.
 Climate Expertise: Deep domain support across policy, commercialization, and impact measurement.
 Governance Support: Active board-level engagement.
 Follow-On Capital: High likelihood of pro-rata and Series A participation.