The parent company of enhanced annuity provider Partnership intends to list the business on the stock market.
According to the Financial Times a flotation is now the preferred option for private equity firm Cinven, although no firm decision has been taken and no advisers have been appointed.
Partnership, valued by some analysts at £1bn, is one of the fastest-growing private companies in the country and would be a candidate for entry to the FTSE250.
It will remain open to offers from private buyers and any flotation would be unlikely before the second half of next year.
The firm announced this month, that it was close to completing the UK's first medically underwritten bulk annuity transaction.
'Misleading, unclear, unfair' promotions
Will extend to wider models
1,414 in 2017/18
UK Multi Cap Income sees success
Guidance on dealing with misconduct