While travelling in India after graduating, Ben Meldrum, 41, learnt how to make traditional metal puzzles from a street seller in Calcutta. He then set up a stall selling them in Covent Garden, before establishing Professor Puzzle in 2002. The London-based company designs metal and wooden toys and puzzles, and sells through stockists such as M&S and the US bookseller Barnes & Noble. Turnover rose to £9m this year. In July the company opened a Chicago office in order to drive growth in America.

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Company details
CompanyProfessor Puzzle
ActivityPuzzles and games maker
LocationSouthwest London
Annual sales rise over 3 years50.20%
Latest sales £000s*8,984

If applicable:

* supplied by company † annualised figure