GG

GridGas

closed

Anaerobic digestion platform converting food waste to renewable natural gas

Deal Size

$31M

Stage

Series A

Sector

Food Waste-to-Energy

Location

Columbus, OH

Announced: December 12, 2025

Deal Overview

GridGas operates modular anaerobic digestion facilities that convert commercial food waste into pipeline-quality renewable natural gas (RNG) and nutrient-rich digestate fertilizer. Their proprietary pre-processing technology handles high-contamination food waste streams that competitors reject, including packaged foods and mixed organics. Each facility processes 50,000 tons/year and generates $8M+ in annual revenue from RNG credits, tipping fees, and fertilizer sales.

Key Highlights

  • Handles contaminated food waste rejected by competitors
  • 3 operating facilities, 4 more under construction
  • RNG qualifies for LCFS credits at $150+/ton CO2e
  • $12M run-rate revenue with 55% EBITDA margins

Founders

  • Rachel Torres
  • Dr. Amit Patel

Investors

  • WasteVC
  • Generate Capital
  • Spring Lane Capital

Interested in Similar Deals?

WasteVC invests from Seed to Series B in waste management and circular economy startups.