51. Natilik

Revenue: £84.5m

Natilik describes itself as a specialist technology services partner, but its tightly honed focus on complex infrastructure—spanning cloud, networking, collaboration, datacentre, security, and managed services—gives it more bite than your average VAR.

With recurring revenues of £49.3m and strong income from hardware (£22.7m), installation (£8.7m), and connectivity services (£4.2m), Natilik blends project delivery with long-term service contracts across its enterprise client base. Its revenue recognition model reflects this balance, with hardware sales booked at delivery and services spread evenly over the length of the contract.

The UK-headquartered business operates as part of the wider Natilik Group. The company continues to invest in growth areas including cloud, collaboration and managed security services, and has long-standing partnerships with the likes of Cisco and Palo Alto Networks.