Sunamp ranked in Deloitte’s 2022 UK Technology Fast 50 awards

Sunamp co-founder Susan Lang-Bissell also wins ‘Women in Leadership’ award

Sunamp has been ranked among the winners of the Deloitte 2022 UK Technology Fast 50 awards becoming the only environmental technology manufacturer to make the list.

The awards recognise and rank the 50 fastest-growing technology companies in the UK, based on average revenue growth over a four-year period, and are sponsored by Multiverse, Oracle NetSuite, and BGF.

This year’s cohort of Fast 50 businesses have a collective average growth rate of 4,568% and total revenues in 2021/22 of £992 million, employing 16,315 people in the UK. Sunamp claimed 40th place.

This year’s awards included a new category, Women in Leadership, that recognises companies within the Deloitte UK Technology Fast 50 that are either led by a female CEO or have a founding team comprised of at least 50% women. Sunamp co-founder Susan Lang-Bissell (left) is number one in Scotland and is number 6 in the UK in this category.

Sunamp CEO Andrew Bissell added: “To be ranked among the UK’s fastest-growing technology companies, and as the only environmental technology manufacturers to make the list is great recognition for the hugely talented Sunamp team. We are particularly delighted that Sunamp COO and Co-founder Susan Lang-Bissell has achieved the top spot in Scotland in the Women in Leadership category.

“We are accelerating global demand for our heating and cooling products in residential, commercial and industrial settings and are grateful to our channel partners and customers for being part of this exciting journey.”

Garry Tetley, tax partner and Deloitte Private leader in Scotland, commented: “The exceptional growth of this year’s Fast 50 is a marker of the ongoing strength and resilience of the UK’s technology industry, which continues to thrive despite considerable headwinds. This year’s cohort represents the very best of the technology industry and I’d like to extend my personal congratulations to all winners.”

About the Deloitte UK Technology Fast 50
The Deloitte UK Technology Fast 50 is one of the UK’s foremost technology award programmes. Now in its 25th year, it is a ranking of the country’s 50 fastest-growing technology companies, based on revenue growth over the last four years. The UK Fast 50 awards are all about growth driven by leading intellectual property and are a celebration of innovation and entrepreneurship. Previous winners have come from across the UK, are both large and small, and included some of the most dynamic players in all areas of technology, from IoT to biotech, digital media technology to life sciences, FinTech to software and clean energy to telecommunications. For more information visit

Deloitte UK Technology Fast 50 eligibility criteria:
The parent company must be UK-owned and have its headquarters in the UK. NB: Companies headquartered in Northern Ireland can take part in the UK OR Irish programme but need to choose one or the other and cannot enter both. Operating revenues must be at least £41,000 (€50,000) and a current year (year 4) operating revenue of at least £835,000 (€1,000,000). NB: The accounts for the base-year must have an accounting period ending between 1 June 2018 and 31 May 2019; and the accounts for the most recent financial year must have an accounting period ending between 1 June 2021 and 31 May 2022.

The Fast 50 Women in Leadership category is new to 2022’s programme and will recognise those companies within the Technology Fast 50 that are either led by a female* CEO or have a founding team comprised of at least 50% women. The ranking will still be judged based on percentage revenue growth over the last four years and entry qualifications are the same as the UK Tech Fast 50.

*The terms ‘women’ and ‘female’ are taken to include all those who self-identify as women or female and engage with their current employers as such.

Published: 28 November 2022