Award-winning and attracting the UK's best-known VCs, Housekeep brings cleaning and technology together.

Launched in 2014 with the intention of making life easier for customers and cleaners, the start-up now boasts 1,000s of subscribers.

Its high-tech database means users book, manage and pay in minutes – and cleaners can find more work, and reduce travel.

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.