82. Options Technology

Revenue: £54.7m (+21%)

Staff: N/A

Backed by Abry Partners, this London-based Microsoft, VMware and Equinix partner provides cloud managed services to 550 hedge funds and other financial services firms.

Calendar 2022 revenues saw another uptick thanks to a combination of upsell to existing customers and the residual impact of acquiring Fixnetix in April of that year.

It operates satellite offices in New York, Toronto, Chicago, Belfast, Hong Kong, Singapore and New Zealand.