Revenue: £69.9m (+18%)
Net profit: 10.3% Staff: 299
This West Sussex-based comms provider snagged a £150m acquisition kitty from new backer Bowmark Capital this March following a year of robust growth. Aided by a trio of acquisitions, Focus banked a £7.2m net profit on revenues that swelled 18 per cent to £69.9m in its year to 30 November 2019. In business since 2004, it claims to deliver hosted voice, cloud applications, mobile, connectivity and IT services to more than 15,000 businesses.