Revenue: £52.6m (+31%)
Net profit margin: 5% Staff: 162
This Cisco Gold partner attributed a 31 per cent revenue hike in its year to 31 March 2019 to its decision to reshape its business around three-client-facing business units focusing on ‘Commercial', ‘London Enterprise' and ‘National Enterprise'. Some £31.8m of its £52.6m top line was from services. Counting Dyson and the London Stock Exchange among its clients, London-based Natilik has grown for 11 straight years. Net profits in its latest year pole-vaulted from £2.2m to £2.7m.