# Remora

> Remora is a Detroit-area climate-tech company that bolts carbon capture onto the things already burning fuel - semi-trucks and freight locomotives - instead of building giant plants to pull CO2 back out of the sky. Its zero-backpressure device threads exhaust through proprietary adsorbents, captures up to 90% of the CO2, reduces soot and NOx to Tier 4 levels, then liquefies the gas to be sold into a supply-constrained industrial CO2 market. Operators share the revenue, so cutting emissions becomes a line item that pays rather than one that costs.

- **Founded:** 2020
- **Headquarters:** Wixom, Michigan, United States
- **Founders:** Paul Gross (Co-founder & CEO), Christina Reynolds (Co-founder & Chief Science Officer / CTO), Eric Harding (Co-founder & Chief Engineer)
- **Team size:** ~45-68 employees
- **Products:** Truck carbon capture device, Locomotive carbon capture system, CO2 offtake & revenue sharing
- **Notable:** Technology validated at the EPA's National Vehicle and Fuel Emissions Laboratory., Captures up to 90% of exhaust CO2 while reducing soot, PM and NOx to Tier 4 levels., Single truck device can capture 100+ metric tons of CO2 per year.

## Products & services

- **Truck carbon capture device** — A unit that mounts between the cab and trailer of a semi-truck and connects to the exhaust. Exhaust passes through a molecular-sieve adsorbent that captures at least 80% (up to 90%) of CO2. Waste heat releases the CO2 as a pure stream, which is compressed and stored onboard, then offloaded at truck stops or distribution centers.
- **Locomotive carbon capture system** — A modular system that retrofits freight locomotives with zero-backpressure carbon capture, extracting and purifying CO2 while reducing soot, particulate matter and NOx to Tier 4 standards.
- **CO2 offtake & revenue sharing** — Captured CO2 is liquefied and sold into industrial markets (concrete, food, agriculture) or permanently sequestered in EPA-permitted wells, with revenue shared back to the transportation operator.

## Achievements

- Technology validated at the EPA's National Vehicle and Fuel Emissions Laboratory.
- Captures up to 90% of exhaust CO2 while reducing soot, PM and NOx to Tier 4 levels.
- Single truck device can capture 100+ metric tons of CO2 per year.
- Signed Class I railroads Union Pacific and Norfolk Southern plus major trucking fleets.
- Raised roughly $117M from top climate investors.
- Backed by Y Combinator (W21).

## Latest updates

- **2025-04** — Reported ~$117M total raised and a partnership with Union Pacific Railroad to advance mobile carbon capture on freight locomotives.
- **2024** — Expanded from semi-trucks into freight rail, adding short-line and Class I railroad partners including Pacific Harbor Lines.
- **2023-06** — Closed $60M Series B led by Valor Equity Partners.

## Links

- Website: https://remoracarbon.com
- LinkedIn: https://www.linkedin.com/company/remoracarbon
- Twitter/X: https://twitter.com/remoracarbon

---

Profile page: https://yespress.io/remora
Published by YesPress — https://yespress.io
Last updated: 2026-06-13