Onex Corp and TPG Capital are also understood to be interested in the $3.5bn company, which is also being looked at by strategic buyer SPX Corp, according to Bloomberg.
Bids for the company are expected this week, Bloomberg reported.
Gardner Denver was founded in 1859 and makes industrial compressors, blowers, pumps and fuel systems.
It has 40 manufacturing facilities across the world and had revenues of $2.4bn in 2011 – around two-thirds of which came from outside the US.
Last October Italian investment firm Aksia Group sold Robuschi, a European manufacturer of blowers and pumps, to NYSE-listed Gardner Denver for €152m.
Gardner Denver president and CEO Barry Pennypacker said at the time, “Robuschi is an outstanding strategic addition to the Gardner Denver portfolio and an excellent fit with our Industrial Products Group.”
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