The company, which is one of the UK’s fastest-growing private businesses, would be an ideal candidate for the FTSE 250 index, the report said, and could value it at about £1bn.
The London-based private equity firm has yet to make a firm decision to list the business and has yet to appoint advisers, and remains open to offers from other private equity buyers.
A public listing would be unlikely before the second half of next year, the report added.
Partnership, which specialises in enhanced annuities that pay generous pensions to retirees who are likely to suffer from serious health problems, nearly doubled pre-tax profits last year to £64m, up from £35.4m in 2010.
Cinven bought the company four years ago through a £158.5m management from Phoenix Equity Partners, which made a six-fold return from the sale of its 80 per cent stake.
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