Nikola is one of the smartest minds in AI and ML in Europe. He holds a PhD in Machine Learning and Natural Language Processing from the University of Cambridge.

He's now the co-founder and CEO of PolyAI, a London-based leader in conversational AI, specialising in advanced voice assistants for enterprise customer service.

It was most recently valued at $500m, but given that it's on track to $50m ARR by year-end it could be a unicorn soon.

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