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Minnesota Media Buying Company

In 1995, Cornerstone Media Group was founded by Mike Clark and Don Epstein. Since then, CMG has grown into a well-respected, thriving media rep firm with a reputation for honesty, integrity, and reliability. Since inception, we’ve never missed a payment to a media client.

Undisclosed
Undisclosed
10 - 49
Founded 1995
Minneapolis, MN
headquarters

Focus

Service lines
60%
40%
Media Planning & Buying
Advertising
Advertising Focus
100%
Media Buying Focus
100%

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