# Circularity Fuels

**Source:** https://www.startuphub.ai/startups/circularity-fuels
**Profile type:** Startup

> Circularity Fuels converts raw biogas from dairy manure into sustainable aviation fuel (SAF) using compact, modular reactor technology.

## About

Circularity Fuels develops compact, modular reactor technology that converts waste carbon streams, such as raw biogas from dairy manure, into high-value fuels and chemicals. The company's system pairs an electrified Ouro reforming reactor with a compact Aion Fischer-Tropsch synthesis reactor to produce sustainable aviation fuel (SAF) directly at the feedstock source. This technology aims to decarbonize hard-to-abate sectors like aviation and long-haul trucking while creating new revenue streams for dairy farmers.

## Key facts

- **Slug:** circularity-fuels
- **Website:** https://circularityfuels.com
- **Location:** Redwood City, United States
- **Founded:** 2023-01-01
- **Operating status:** Active
- **Total funding:** $7M
- **Sectors / tags:** Cleantech, Biofuel, Aviation, Clean Energy, Sustainable Aviation Fuel

## StartupHub.ai scores

- **Ahrefs DR:** 22/100
- **Agent Readiness:** D (50/100)
- **Site Speed:** 94/100
- **Data Trust:** 67/100

## Funding rounds

| Date | Round | Amount | Lead investors |
| --- | --- | --- | --- |
| 5 Nov 2026 | [Seed](https://www.startuphub.ai/investment_rounds/circularity-fuels-seed-2026) | $7.0M | [Trucks Venture Capital](https://www.startuphub.ai/investors/trucks-venture-capital), [DCVC](https://www.startuphub.ai/investors/dcvc) |

## Tech stack

Detected on circularityfuels.com, last scanned 2026-11-05.

- **Frontend:** Bootstrap
- **CDN:** Cloudflare
- **Email provider:** Google Workspace

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