Revenue: £53.1m (+6%)
Net profit: 6.3% Staff: 231
In an eventful October, the UK arm of this pan-European storage integrator acquired £13m-revenue peer Cetus Solutions and bagged a multimillion-pound Cisco deal with NHS Blood and Transport. Group accounts also released in October by its Swedish parent show Proact UK turned over SEK440m (£38.7m) in the nine months to 30 September 2020. The last formal UK accounts filed on Companies House - which we have used at the top of this profile - cover calendar 2018.