Revenue: £414.4m (+5%)
Net profit margin: 1.5% Staff: 482
This Nottingham-based, public sector-focused reseller opened a new office in Surrey to house its expanding corporate sales team during its year to 31 December 2018. A five per cent annual revenue jump was more than matched at the bottom line, as net profits plumped up from £4.9m to £6.3m. Part of the £2.5bn Westcoast Group, XMA claims it is the only UK reseller to reach HP triple Platinum status. It shipped 650,000 orders last year.