Sensum can read your mind (kind of).

A world-leader in skin sensor technology, it monitors the impact of marketing, essentially equipping users with the ability to assess the true effectiveness of adverts.

But the innovative emotion-based software could also be used for market research, sports and performance and entertainment.

See more of our 101 tech start-up disrupters here.

And check out our 101 rising stars of tech - the exciting firms which did not make the main list but have the potential to grow.