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 | Jun 05, 2025
Cosysense
Cosysense co-founders, Dr Sebastian Horstmann & Dr Matias Acosta

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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.

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

Entrepreneur Staff

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