Firms including Blackstone, Cinven, Permira, CVC Capital and Onex Corp have been approached according to Reuters, which cited three people familiar with the process.
The company currently has annual sales of about €1.1bn and EBITDA of around €130m.
IK’s decision to sell comes just over a year after scrapping a planned exit in favour of a dividend recap.
The firm could also decide to float the business on the stock exchange, and is believed to be running a dual-process with that in mind, Reuters added.
IK bought the business form Investcorp in 2006, using €530m of bank lending to finance the deal, Bloomberg added.
It said that at the time Minimax had annual revenues of less than €500m.
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