3. WWT

Revenue: £1.58bn

Staff: 313

The Missouri-based services giant hit the $20bn (£15.6bn) turnover milestone globally in 2023. In the UK, it now turns over £1.5bn annually, making it the third largest company on our list.

With a $500m war chest, St Louis-HQ WWT is setting its sights on the AI race.

"I see a ton of opportunity for World Wide that we're engaged with customers today in helping them try to understand where they want to go relative to how they want to build their AI infrastructure. We help them as we have built out purpose-built AI platforms in our labs running on Nvidia, AMD, Intel," CEO Jim Kavannaugh told sister title CRN US in January.

"We're looking at, ‘What is best for that customer? What kind of back-end storage capability is best for them? What type of networking capability should be built-in? … What makes the most sense for that client?"

The investment will go towards AI training and WWT's Advanced Technology Centre designed to help customers rapidly build and implement new technologies, such as GenAI solutions.

WWT will also build a new AI lab to serve as an AI proving ground to help companies understand the technologies and network infrastructure needed to utilise the tech to its fullest potential.