Swindon’s Sinewave makes Sunday Times 100 list for the UK’s fastest-growing private companies
Swindon-based electrical engineering firm Sinewave has been listed on the annual Sunday Times 100 rankings of Britain’s fastest growing companies.
The list ranked Sinewave at 87th place and reported that the company has seen sales of £20m and growth of 65%.
Meanwhile, Hawkstone, a brewery based in Gloucestershire whose largest shareholder is TV star-turned-farmer Jeremy Clarkson, is the South West’s fastest-growing private company – placed at 23.
Also representing the South West on the list are St Ewe Free Range Eggs from Cornwall (53), Talentia Group from Bristol (67), Green Frog Connect from North Somerset (70), and Sweet Bee Organics from Somerset (81).
Adam Woodley, Founder and Chief Executive Officer of Sinewave, said, “It is a very proud moment for me and the team. From starting Sinewave as a two-man start-up in 2015 to joining a prestigious group such as the Sunday Times Top 100 is a real dream achieved and shows the hard work of the team at Sinewave.”
The Sunday Times 100 is sponsored by Barclays Private Bank and supported by S&W, the professional services firm, Oracle NetSuite and Singer Capital Markets.
The list was published on Friday online at thesundaytimes.com/100 and is available as a supplement with the print edition of the newspaper this Sunday, 29th June.
The annual ranking identifies and celebrates Britain’s 100 leading entrepreneurial businesses, and showcases the people behind these dynamic private companies. This year, The Sunday Times 100 excludes companies that sell their own technology, which now feature in the sister table, The Sunday Times 100 Tech, which was launched in January 2025.
The research for The Sunday Times 100 found on average the top 100 fastest-growing companies have increased their sales by 111% a year over the last three years to a combined £3.4 billion in sales. This figure is up by £500 million year-on-year, with the 2024 top 100 fastest-growing companies achieving £2.9 billion in sales.
In total, these companies employ 15,300 people, having created 10,500 new jobs in the last three years, with all of them planning further hires in the next 12 months, equating to around 5,300 additional roles.
Out of the 100 companies featured in the ranking more than a third are based in London, with the rest spread throughout the country.
28 of the businesses have female founders or co-founders and nearly two-thirds of the companies were founded in the last decade – in 2015 or after.
The majority of companies are self-funded. Only 39 of the companies on the list have raised external equity funding since 2011. The rest have used a combination of debt and profits to fund their growth.
Jon Yeomans, Business Editor of The Sunday Times, said, “The Sunday Times 100 is the definitive annual ranking of Britain’s fastest-growing private companies and demonstrates the remarkable entrepreneurial spirit thriving across Britain. DFYNE’s [ranked 1 on the list] meteoric rise is a testament to the power of innovation and resilience in the private sector. It’s inspiring to see how these businesses are not only achieving phenomenal growth, but also creating thousands of new jobs and opportunities.”
Mo Syed, Head of Barclays Private Bank and Wealth Management UK and Crown Dependencies, added, “This prestigious ranking celebrates the innovation, ambition and resilience of Britain’s entrepreneurs – qualities that we at Barclays Private Bank are privileged to support. As these dynamic businesses scale and evolve, we’re committed to being the trusted partner for their strategic wealth, investment and succession planning, supporting them at every stage of their personal and business journey.”
The research for the Sunday Times 100 was conducted by the paper’s business reporters, in partnership with Beauhurst, a source of private company data.
