Revenue: £119.3m (-5%)
Net profit margin: 2.6% Staff: 229
This Nottingham-based Apple partner said the growth and "all-round development" of its business in its fiscal 2018 ending 31 May made it an "excellent year". Revenue would have grown but for a one-off, low-margin deal the previous year, while net profits leapt from £2.3m to £2.7m. Targeting the corporate, education and creative markets, Jigsaw24 was taken over by its founder Roger Whittle in March 2018 in an Alcuin Capital-backed management buyout.