91. Roc Technologies

Revenue: £50.3m (-13%)

Staff: N/A

Despite a revenue drop in its most recent report, the company stated it was 'pleased' with its resiliency through the post-pandemic period.

Founded in 2014 by former 2e2 staff, this BGF-backed IT services firm swapped CEOs in March 2022 as Ian Furness replaced incumbent Matt Franklin (the latter of whom is now focusing on developing the M&A strategy).

Project delays in Covid-hit verticals such as aviation, travel and hospitality caused Roc's revenues to fall by nearly a fifth in its previous set of results to 31 March 2021.

It counts Aruba, Tibco, Dell, Netcall, Citrix, Microsoft, Juniper, Nutanix and Oracle among its vendors.