54. Zones

Revenue: £79.3m (+28%)

Staff: 69

Having been dogged by Covid and Brexit-related challenges the previous year, the UK subsidiary of this US-based IT reseller returned to double-digit growth in calendar 2021. Higher warehousing, freight and administration costs dragged it to a £203,000 net loss for the period as it established new entities in Ireland and the Netherlands, however. UK sales rose from £24.4m to £28.2m, while EU sales clambered from £32.9m to £43.8m. Zones counts Apple, Cisco, Dell, Intel, Lenovo and Microsoft among its vendors.