Entrepreneur UK's London 100: Cosysense £140m market, zero risk—Cosysense saves power, cash, and the planet, one degree at a time

By Patricia Cullen

Opinions expressed by Entrepreneur contributors are their own.

You're reading Entrepreneur United Kingdom, an international franchise of Entrepreneur Media.

Cosysense
Cosysense co-founders, Dr Sebastian Horstmann & Dr Matias Acosta

Industry: Climate Tech
With a $140m market and 8m tonnes of CO₂ savings – equal to a forest the size of London – Cosysense are a clear fit for the Entrepreneur UK London100 list. Everyone argues over cold or hot offices, right? Heating, ventilation and air conditioning (AC) are typically set to a fixed temperature, ignoring people's comfort needs.

We all know the problem, but here's an open secret: buildings consume up to 15% more electricity for each degree away from optimal AC comfort settings. Cosysense is a plug-and-play climate control service for buildings.

In June Cosysense grew over 1500%, saving 4000 kWh in 7 pilots, reducing their costs by £1200 and their footprint by the equivalent CO₂ capture by 540 trees. Clients only pay if their savings are larger than the fee.

Cosysense targets 44% of the market, that is the underserved old buildings and SMEs, and filed the patent for the first climate control that quantifies and manages comfort, energy and emissions.

Patricia Cullen

Features Writer

Money & Finance

Founders Obsess Over Cash Flow — But There's a Threat That's Even More Dangerous

There's a silent business risk every entrepreneur underestimates, and it can shut you down faster than a cash crunch.

Innovation

It's Time to Rethink Research and Development. Here's What Must Change.

R&D can't live in a lab anymore. Today's leaders fuse science, strategy, sustainability and people to turn discovery into real-world value.

Fundraising

4 Trends In Fundraising That Will Impact the Future of Philanthropy

Increasing the success of your nonprofit requires you to adapt to changes.

Business News

Still Debating a 9-to-5 vs. Side Hustle? That's the Wrong Question to Ask

In today's uncertain job market, relying on a single income stream can feel risky — that's why more professionals are embracing a hybrid career.

Health & Wellness

10 Habits That Will Completely Transform Your Life and Business in 2026

The best habits aren't about optimization. They're about sustainability, resilience and showing up as the healthiest, happiest version of you

Business News

Walmart Sales Are Up. Here's Why That Matters.

New quarterly results show Walmart winning in a holiday season many analysts expect to be soft.