Published this weekend, the 14th annual Sunday Times Grant Thornton Top Track 250 league table ranks Britain’s private mid-market growth companies with the biggest sales.

The three companies headquartered in Wales have made a strong contribution to the local economy. The companies increased combined sales 25% to £565m and operating profits 29% to £66m, and they employ more than 2,000 people.

The biggest mid-market growth company in Wales is Tinopolis, based in Llanelli, Carmarthenshire. The film and television producer makes TV favourites such as Ninja Warriors and Robot Wars, and increased turnover by 7% to £216m in 2017 and profits rose 54% to £21m.

The other companies are cash machine operator Notemachine, based in Crickhowell, Powys; and new entrant The Trade Centre Wales, in Neath, West Glamorgan, which opened a new car supermarket in Wednesbury last year, helping sales to jump 68% to £179m in 2017.

The companies in Wales appear with businesses from around the UK, including Travelodge, Trainline, Dr Martens and The White Company. The Top Track 250 is sponsored by Grant Thornton and Lloyds Banking Group, and compiled by Fast Track, the Oxford-based research and networking events firm. The full league table is published on Sunday as a 10-page supplement within the business section of The Sunday Times on 7 October, both in print and in the digital edition, and on www.fasttrack.co.uk.

Alistair Wardell, Partner at Grant Thornton UK LLP, the title sponsor of the league table, praised the companies for their performance: