BC Partners, Advent International and Onex Corp have been asked to submit bids by a mid-June deadline according to Reuters, which cited three sources familiar with the matter.
It added that PAI, CVC and industry rival Sonic Healthcare had shown interest but were not among the final contenders.
Amedes could attract bids valuing the business at between €600m and €700m according to one of the sources.
They added that the company’s EBITDA current stood at more than €80m.
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