Trader Corporation is a Canadian technology company based in Toronto specializing in classified automotive advertising.

[5] In 1987, AutoTrader was acquired by John MacBain, founder, president, and CEO of Trader Classified Media.

The two companies were acquired by Yellow Pages Income Fund from Trader Classified Media that same year.

[11] Yellow Pages sold its Trader Corporation division in March 2011 to London-based private equity firm Apax Partners for $745 million.

[20] In May 2018, Trader Corporation announced a strategic investment in DealerBreacher, a digital advertising services company based in Montreal.

[23] In January 2020, Trader Corporation invested in Motoinsight, a provider of digital retailing solutions for the automotive industry.

[25] In June 2021, Trader Corporation invested in Activix, a software development firm that serves automobile dealerships.

[26] In February 2022, AutoTrader announced the start of a partnership with digital communications company that specializes in automotive, RAPID RTC.