Milton Keynes has two firms featured in a list of Britain’s top 100 private equity-backed companies, measured by profit growth over the last two years of available accounts.  Schools operator Cognita, based in Fox Milne, was the top Milton Keynes business, weighing in at number 31 on the Sunday Times Deloitte Buyout Track 100. Cognita showed over 50% growth and recorded profits in excess of £26million...