40. Version 1

Revenue: £105.5m (+35.5%)

Staff: N/A

Version 1 saw a healthy spike in revenue to £105.5m in its first year under the ownership of PE firm Partners Group.

In October, the AWS partner announced plans to open a technology hub in central Birmingham, creating 500 new jobs and expanding its presence in the West Midlands.

It launched the hub in January this year.

Notable client wins in 2023 include Companies House and Sollihull Metropolitan Borough Council.