Ferrovial buys Enterprise for £385m Ferrovial, the Spanish company that owns the largest stake in Heathrow airport, revealed on Thursday that it had made another investment in UK infrastructure, buying Enterprise from its private equity owners for £385m. Enterprise, which had sales of £1.1bn last year, is a business services company with 9,600 employees that works mainly with utilities and the public sector. It was bought by 3i, the private equity group, in May 2007. 3i's investment in Enterprise has been one of its worst, with the buyout group forced to write off its entire £200m equity stake in the company in 2011 after it became unable to cope with its debt load. When it bought Enterprise in 2007 it was 3i's largest investment in the UK, but the deal soured after public spending slumped following the financial crisis. Ferrovial said it would integrate Enterprise into Amey, a UK services company that has been part of the Spanish group since 2003. The deal will double the size of the group's British services arm, and is forecast to deliver annual cost savings of £40m. Mel Ewell, the chief executive of Amey, will lead the combined company. The deal strengthens our position in markets with growth potential. In terms of client types, range of services and geographical footprint, the two companies are highly complementary," said Santiago Olivares, chief executive of Ferrovial Services, in a statement. Analysts at BPI, the Portuguese bank, said: "The deal comes on the cheap side." In a research note published on Thursday, the bank added that the deal would be "valuable" to Ferrovial's expanding operations in the UK.