google's most expensive acquisition in united kingdom

LIST OF STARTUPS BOUGHT BY GOOGLE IN UNITED KINGDOM;

 Out of 8 start ups acquired by Google, the biggest  acquisition in UK or for that matter in Europe was  of  DEEP MIND technologies.
DeepMind technologies, a London-based artificial intelligence firm which specialises in machine learning, advanced algorithms and systems neuroscience was aquired by Google Ventures, the VC group of Google..  Google paid  a hefty amount of  £400m ($650m) for  acquisition of DeepMind

Deep minds  has created a neural network that  might be able  to access an external memory like a conventional Turing machine, resulting in a computer that appears to possibly mimic the short-term memory of the human brain.Deep Mind Technologies plans to develops technologies for e-commerce and games, and plans to  develop computers that think like humans.

Deepmind recent made headlines when it announced  that its alphaGo program had successfully beaten  a human professional 

The two-year-old artificial intelligence startup was founded by former child chess prodigy and neuroscientist Demis Hassabis alongside Shane Legg and Mustafa Suleyman.