London-based startup Lighthouse just raised a hefty $370mn from American investment giant KKR at a valuation of over $1bn, making it Europe’s latest unicorn tech company. The funding will supercharge the company’s ambitions to shake up the $15bn travel tech market. What’s on the to-do list? Refining its AI tools, expanding globally, and snapping up competitors through mergers and acquisitions (it has already made four).