The funding round was supported by Vectr7 Investment Partners and existing shareholders alongside the Innovate UK Investor Partnerships Programme.
AirEx
AirEx produces smart ventilation technology designed to reduce domestic energy consumption.
AirEx designs and manufactures smart ventilation products that reduce heat loss in residential buildings. The company was founded to address climate change and fuel poverty.
Filed accounts
Cash at bank
Net current assets
Total assets less current liabilities
Net assets
Shareholders' funds
Current assets
Cash, assets and headcount from AirEx's latest Companies House filing — with year-on-year movement, free with a Winfred account.
Categories
Founders

Agnes Czako
Co-Founder and CEO
Agnes is the founder and CEO of AirEx and a partner at Sustainable Venture Development Capital. Her background spans ventures, energy assessment, and sustainability consulting.
LinkedInInvestors
- £2.1M
- OnePlanetCapitalLead
- £1.5M
- £520K
Funding history
The investment from the OnePlanetCapital Climate Change EIS Fund will support international expansion and product development.
The climate tech company added backing from Bayes Entrepreneurship Fund, One Planet Capital and Cell Capital to complete a £4.1m total Series A round.
Green Angel Syndicate led the investment into the energy efficiency start-up.