BRIDGEPOINT, the private-equity group, has drawn up a short-list of investment banks in preparation for a possible £600m sale or flotation of Pets at Home, Britain’s biggest pet retailer.

It is thought the four-strong short-list includes Citigroup, Goldman Sachs, UBS and NM Rothschild. The banks are preparing for a pitch to win the mandate in the next three weeks.

Bridgepoint bought Pets at Home in a £230m deal in 2004 so an exit later next year would generate vast profits. The company was established in 1991 and sells a range of pet foods and accessories for cats, dogs, small animals, fish, aviary and wild birds. It also sells small animals, birds and fish.

The business has grown to be the premier retailer in UK pet products, a market estimated to be worth more than £2 billion a year.

Pets at Home employs 3,500 staff and 800 jobs have been created since Bridgepoint bought the company. Earnings before interest and tax have more than doubled from £23m to £47m.

The news came as it emerged that Peacocks, the fashion chain, has received at least three unsolicited approaches to buy the business after appointing Goldman Sachs to carry out a strategic review of its options earlier this year.

It is understood that the interest, which is still at an early stage, has come from private-equity groups including Cinven, although it sought to play down its involvement this weekend. The business is valued at about £800m.

A sale or refinancing would generate a huge payday for the consortium that owns the company, which includes US hedge funds Och-Ziff and Perry Capital, Richard Kirk, the Peacocks chief executive, and former chairman John Lovering.

Separately, Alchemy, the private-equity group headed by Jon Moulton, has hired Seymour Pierce to prepare for a possible £50m sale or flotation of Sylvan International, the holding company for MLM Distribution, and Panelco, supplier of plywood and chipboard products to the building industry.

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