
Following strong performance and 7x profit growth, it has been acquired by Genuit Group, with the exit generating one of BGF’s highest-ever returns.
1 September 2025
BGF has completed the successful exit of its investment in Monodraught, a British green tech business, based in High Wycombe, Buckinghamshire. Monodraught has been acquired by Genuit Group plc, for a total consideration of £55.6m.
Due to Monodraught’s strong performance, the exit has generated a return of 11x MM and an IRR of 37.5%, making it one of the highest returns delivered by BGF.
Under the leadership of CEO Andrew McCubbin and CTO Nick Hopper, Monodraught is a UK leader in low-energy, low-carbon solutions for the built environment. It designs, makes and installs ventilation systems, as well as other sustainable and zero-carbon technologies.
Andrew McCubbin, CEO of Monodraught, said: “In 2017, we set out to build on our already-strong business foundations, and we knew BGF would be the right partner to help us do that. Growth capital has allowed us to accelerate our plans and, more than that, BGF’s team has also brought valuable strategic expertise, and both commercial and operational support. As a result, the business is now in an even stronger position, and we look forward to the next chapter of our journey with Genuit.”
During the investment partnership with BGF, Monodraught has generated strong financial growth, with a 7x increase in profitability. This has supported job creation, with 95 people now employed at its High Wycombe headquarters.

BGF backed Monodraught in 2017, with a multi-million-pound investment. Since then, and with support from BGF’s team, the company has delivered significant product innovation, broadened its commercial offering, consolidated its position in the education sector, and expanded into new sectors and geographical markets.
Monodraught has benefited from the growing demand for energy-efficient buildings and the increased focus on the green agenda. BGF also helped the company to embed ESG into its internal operations, and introduced Ewan Wilson, as Non-Executive Chair.
Nick Hopper, CTO of Monodraught, said: “BGF provided an inspirational platform for the company’s growth. Our technologies have established strong market traction and built a scalable foundation. We’ve invested heavily in creating a sustainable product range that leverages embedded sensors, IoT, and data analytics, positioning us at the forefront of the market. We look forward to expanding the influence of our technologies across new sectors.”

For BGF, the deal was led by Partner Jon Earl, who sat on the Board of Monodraught, and Investors Daria Polunina and Sam Giurani. BGF’s original investment was led by Mark Nunny.
“This exit is a fantastic result for BGF, but even more so for Andrew, Nick, and the team at Monodraught. They have shown exemplary leadership and a quiet, but determined, ambition — that’s delivered not only strong financial results, but also meaningful innovation and positive environmental impact, through their work in the built environment. It’s been a privilege to support them on this journey.”
Jon Earl
Partner at BGF
The Monodraught exit adds to a series of recent, successful realisations for BGF, including Brisant Secure, Braidwater, Panthera Biopartners, and OrganOx. Together, they highlight the breadth of BGF’s portfolio, and the strength of its partnership model, which supports ambitious management teams in achieving both commercial success and long-term impact.