AirEx

AirEx provides smart air brick technology to improve residential energy efficiency.

London, UK—Founded 2020—Website

£3.6MTotal raised

AirEx develops smart ventilation technology designed to regulate underfloor airflow and reduce residential heat loss. The company works with housing providers and contractors across the UK to improve energy efficiency.

Team

Agnes Czako

CEO

Joe McMullen

COO

Investors

21 May 2026
£2.1M
BC
Barclays Climate Ventures
GA
Green Angel Ventures
BE
Bayes Entrepreneurship FundFollow-on
OP
One Planet CapitalFollow-on
N
Nesta
SV
Sustainable Ventures
VI
Vectr7 Investment Partners
Series A4 April 2023
£1.5M
BE
Bayes Entrepreneurship Fund
OP
One Planet Capital
CC
Cell Capital

Funding history

21 May 2026

£2.1M

AirEx raises £2.1m from Vectr7 Investment Partners and existing backers to scale its smart ventilation technology.

The funding round was supported by Vectr7 Investment Partners and existing shareholders alongside the Innovate UK Investor Partnerships Programme.

Series A4 April 2023

£1.5M

AirEx raises £1.5m in the second close of its Series A round to accelerate 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.