Description Questor Management Company would rather light a candle than curse your darkness. The turnaround capital investment firm acquires underperforming or troubled companies that show performance improvement opportunity. Questor makes controlling investments in companies with promise for success but a need for capital and management assistance.Its portfolio includes tank trailer manufacturer Polar Corporation and food manufacturer Chef Solutions; Questor Management has acquired more than 20 businesses around the globe with combined revenues of about $7 billion. The firm works with management teams, strategic buyers, and existing equity holders to assure a smooth transition and turnaround.