Revenue: £42.4m (+27%)
Net profit margin: 5.7% Staff: 277
Having only entered the UK in 2013, this acquisitive, Dublin-based Oracle, Microsoft and AWS partner now employs over 500 UK staff in London, Edinburgh, Redditch, Belfast, Kent and Cheshire. UK accounts for the year to 31 December 2018 show net profit rising from £1.5m to £2.4m on revenues that swelled by over a quarter to £42.4m. In March, Version 1 doubled its offshore delivery capability by acquiring the business assets of Bangalore-based consultancy TE4B.