Revenue: £179.1m (+23%)
Net profit margin: 16% Staff: 464
With Microsoft still on fire under Satya Nadella, it's no surprise that this dedicated Microsoft enterprise technology partner's UK arm enjoyed a blazing year to 31 August 2018. Its revenues rocketed by nearly a quarter, while net profits virtually doubled to £28.8m. An 80-20 joint venture between Accenture and Microsoft which turns over $2.5bn globally, Seattle-based Avanade appointed a new CEO in June in the form of Pamela Maynard.