The Sunday Times Grant Thornton Top Track 250 league table ranks Britain’s private mid-market growth companies with the biggest sales. It is compiled by Fast Track and published in The Sunday Times each October, with an awards event in November, and alumni dinners during the year.

Top Track 250 entry criteria

The closing date for nominations for the 2017 league table is 21 July, with publication on 1 October.

Sales £115m – £640m

  • UK registered, unquoted, and not subsidiaries
  • Sales are taken as total turnover, net of VAT
  • Companies’ sales or operating profits must be growing year-on-year by 10% or more for the lowest turnover companies that qualify, graduated to 5% or more for the largest. We have introduced this sliding scale so that the larger turnover mid-market companies are not penalised by our minimum growth criteria
  • For the 2017 league table, companies must also have operating profit margins that exceed 2%
  • Trading weeks in the latest year have to exceed 25
  • Companies may have their ultimate holding company offshore
  • Sales are typically between £140m and £630m
  • Companies are defined as large with reference to the Companies Act 2006


  • Companies that are either equal joint ventures, or majority-owned by quoted companies
  • Companies with the majority of sales generated by their quoted subsidiaries
  • Companies with fewer than 50 staff
  • Not-for-profit companies, co-operative societies, mutual societies, provident associations, and member-owned buying groups
  • We reserve the right to change the qualification criteria set out above and to make exceptions. This is not a competition; the compiler’s decision is final and no correspondence will be entered into


Types of company

Total sales

£115m - £630m


up to £100m

Sales/profit growth

min 5% annual


50 - 5,000

Alumni success stories

Featured with sales of £276m. Floated in 2014 and now valued at £540m
First featured with sales of £305m; floated in 2014 and completed a $13bn merger with IHS in 2016
First featured with sales of £143m. Floated in 2010 and now valued at £1.8bn