4. Trustmarque
This enlarged York-based reseller – which only last week unveiled its new ‘TMU’ identity – generated £420m in public sector sales in 2024/25, according to Tussell.
That was enough to propel it into fourth in Tussell’s Reseller Titans standings (up from fifth in 2023/24 and sixth in 2019/20).
Trustmarque and Ultima created a VAR/MSP giant with 1,000 staff and sales “on a trajectory towards” £1bn when they joined forces last year. The enlarged outfit ranked sixth in Oxygen 250 2026.
It relies on central government (54%) and the NHS (33%) for the vast majority of its public sector sales, ahead of local government (11%).
Countdown continues on following page…
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