Greenbelt Capital Partners III

United States

Series A

About Greenbelt Capital Partners III

Greenbelt Capital Partners III is a venture capital firm based in United States, focusing on Series A stage investments. The fund actively supports founders building innovative solutions in Climate & Sustainability, Deep Tech, SaaS, providing strategic guidance and capital to help startups scale.

Investment Focus

Location / RegionUnited States

Funding StageSeries A

Industry Focus

Climate Sustainability

Deep Tech

Saas

Investor Signals Profile

active

Sweet Spot

Energy/electrification founders seeking strategic ops + capital partnership

energy-infrastructure

enablement-layer

megatrend-creation

platform-building

lifecycle-compounding

Bullish Signals

28yr history, $7B+ capital, $90B M&Awebsite

290+ M&A/financing transactions executedwebsite

Active portfolio — team + portfolio pages livewebsite

"Powering What's Possible" — clear missionwebsite

E³ framework (Energy/Enablement/Endurance)website

IPX landmark transaction + $4.95B financingexternal

Multi-year portfolio exits + strategic acquisitionsexternal

Saber Power acquired by Veritas Capital (Aug 2026)website

BRUSH Group M&A strengthens UK manufacturingwebsite

AEGIS Hedging exit to Goldman Sachs Alternativeswebsite

Founders testimonials cite strategic clarity + partnershipwebsite

Contrarian Signals

Thesis scope unclear beyond energyexternal

Heavy focus on deep ops may slow early-stageexternal

Founder Do's

Show energy/electrification relevance

Highlight business-building traction

Emphasize future-of-energy angle

Demonstrate margin improvement potential

Position as category re-definer

Founder Don'ts

Pitch without energy angle

Lack operational depth or margins

Miss sustainability/climate alignment

Key GPs & Partners

Brian Bratton

Partner (ex-Portfolio CEO, Saber Power Services)

operationaldisciplinedgrowth-focused

Nicolas Pitrat

Partner (ex-Portfolio CEO, BRUSH Group)

heritage-builderengineering-ledscale-ready

Sheldon Kimber

Partner (ex-Founder/CEO, Intersect Power → IPX)

exit-readymarket-positionedstrategic

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Fund Overview

Fund Size$1B

Saves0

Website

Key People

Chris Manning, Erika Mapes, Samuel Graham

Brian BrattonPartner (ex-Portfolio CEO, Saber Power Services)

Nicolas PitratPartner (ex-Portfolio CEO, BRUSH Group)

Sheldon KimberPartner (ex-Founder/CEO, Intersect Power → IPX)

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