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BC Partners’ United Group is just one of the private-equity-owned companies currently embroiled in a row with its founder, Dragan Šolak, centrePhoto: Dan Mullan/Getty Images

Private equity firms are starting to take a more active role in disputes at their portfolio companies, according to a senior litigator.

“Private equity houses are more involved in litigation processes than perhaps they would have been before,” said Chris Bushell, a dispute resolution partner at Herbert Smith Freehills Kramer.