Headcount: 41 (+156%)
Specialism: Network infrastructure
HQ: Hemel Hempstead, Hertfordshire
Founded in 2008, this network infrastructure specialist roughly doubled in size when it acquired Welsh peer Capital Network Solutions in August 2021.
Flow UK Holdings Ltd’s average monthly headcount rose from 16 to 41 between its fiscal 2019 and 2022.
Headed up by industry stalwart Etienne Greeff since 2020, Flow counts Cisco, Juniper Networks, Riverbed, Netscout, A10 Networks and PulseSecure among its vendors.