6. CDW
The world’s largest reseller bagged sixth spot in Tussell’s countdown after generating £388m public sector sales during 2024/25 (just £2m more and it would have ranked fifth).
CDW drew a disproportionately large share of its total from the NHS (41% of its total haul).
Central government (38%), local government (9%) and blue light (9%) were its next largest sub-verticals.
Ranking fourth in Oxygen 250 2026, CDW UK boss Penny Williams recently told us its UK business is split evenly between public sector, enterprise and midmarket.
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