100. invenioLSI

Revenue: £43.9m (+0.2%)

Headcount: 989

Styling itself as the world's leading SAP partner for public sector and media organisations, Reading-based invenioLSI recently implemented a procure-to-pay solution for publishing company Penguin Random House. The BGF-backed outfit saw operating profits rise from £7m to £9.2m on flat revenues of £43.9m in its year to 31 March 2021 (its 2022 numbers were overdue as this report went to press). The second half of its name is derived from its February 2021 acquisition of US SAP consultancy Labyrinth Solutions Inc (LSI).