57. Solid Solutions

Revenue: £73.2m (+46%)

Staff: 217

This CAD software and 3D printer reseller sold up to US peer TriMech in June 2022 to form "the most comprehensive provider of software and services for the SOLIDWORKS and Dassault Systèmes portfolio across their combined geographies". Previously owned by LDC, Leamingon Spa-based Solid Solutions saw revenues power up 46 per cent to £73.2m in calendar 2021 as acquisitions Design Rule and Desktop Engineering inflated its top line. TriMech boasted 650 staff to Solid Solutions' 217.