7. Thrive
Revenue growth: +84%
Revenue: £33.8m
Oxygen 250 ranking: 139
The UK arm of this provider of “next-generation IT services” saw calendar 2024 revenues bounce 84% as recent acquisitions Edge TG and Custard Technical Services bolstered its top line.
Based originally on Thrive’s 2021 acquisition of Cisco Gold partner ONI, it saw EBITDA rise from £1.9m to £3.3m during the period, with 84% of its top line drawn from IT and support services.
Globally, Massachusetts-based Thrive has over 1,500 staff.
Oxygen ice-breaker:
Although private equity-backed Thrive hasn’t made a UK acquisition since 2022, it snapped up five US firms in 2025.
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