80. IGX Global

Revenue: £54.7m (+3%)

Staff: 21

Acting as the UK arm of $1.8bn-revenue NASDAQ-listed IT solutions provider ePlus, this London-based networking and infrastructure specialist registered a net profit of £2m on revenues of £54.7m in its year to 31 March 2022. A Cisco Gold partner, IGX Global also counts Arista, AWS, Check Point, Dell, HPE, Juniper and Pure Storage among its vendor allies. Global satellite provider Inmarsat, fintech outfit Worldpay and Booking.com are among the customers singing IGX's praises on its website.