Carnot The Startup Poised To Disrupt The Billion Pound Engines Industry

A Game-Changer in Engine Efficiency

Carnot has revolutionised the combustion engine from the ground up leveraging cutting-edge materials and eliminating outdated cooling systems that waste a third of an engines energy. This innovation translates to a 50% improvement in efficiency, offering industries such as shipping, power generation, and heavy-duty transport a game-changing reduction in fuel costs and carbon emissions. By drawing on historical thermodynamic principles and reimagining them for the modern era, Carnot Engines is pushing the boundaries of fuel efficiency and innovation.

The scope of carbon reduction prior to a complete transition to zero carbon fuel is significant. With the shipping industry alone responsible for 3% of global emissions, Carnot’s engines offer a critical solution that regulators and corporations cannot ignore, and provides both an intermediary and long-term solution.

In the latest episode of Profit Meets Purpose, Sustainable Times Editorial Manager, Daisy Moll, sat down with founder Archie Watts-Farmer. In their conversation, they delved into the critical role of partnerships with universities, governments, and investors, during a company’s early stages. The global impact of doubling fuel efficiency, and consider why venture capital funding may not always be the right fit for research and manufacturing-intensive startups, where longer return periods extend beyond the typical VC investment horizon.

Multi-Fuel Flexibility for a Changing Market

Unlike competitors modifying old designs, Carnot builds engines to seamlessly switch between traditional fuels and zero-carbon alternatives like hydrogen and ammonia. This adaptability ensures their technology remains relevant as regulations tighten and new fuel infrastructures develop, de-risking investment, and future-proofing profitability.

Backed by Industry Leaders

Carnot has raised £12.5 million to date. As part of this current £5.5 million seed raise Carnot have already secured £2 million of a , with investment from shipping giant Mitsui O.S.K. Lines, the fifth largest shipping operator. This both secures their reputation as a viable start-up and indicates a strong consumer market. Their strategic partnerships with leading universities and regulatory bodies further validate their technological viability.

High ROI and Market Demand

While Carnot’s engines may cost around 50%-100% more initially, their ability to cut fuel expenses by nearly half ensures a rapid return on investment typically within a year.

The market Carnot is targeting is highly lucrative, with heavy goods vehicles (HGVs) valued at $830 billion, stationary power at $360 billion, and the marine sector at $210 billion creating a massive opportunity for investment return.

If you're looking to connect with the Carnot Engines team, don't miss their pitch at the EIS Forum on April 24th. Tickets are still available.

EIS Investment Forum 2025

24 April 2025, 18:00–22:00|The Royal Institution

If you would like more information about this investment opportunity the waiting list is now Open.