Who We Are > Team

The GrownUps

Together, the principals of GrownUpMarketing (GUM) bring over 100 years of experience in all facets of data analytics, sales, strategic marketing and creative on both the agency and client side including corporate and start-up environments. We have deep relationships on and off Madison Avenue and throughout corporate America.

Jerry Shereshewsky
Jerry Shereshewsky

Jerry may be the only marketing executive in the burgeoning digital technology field who's invented a new brand of soda pop.

Then again, he has been associated with breakthrough marketing ideas in every phase of his distinguished career. Starting at Y&R in the mailroom, he rose to Senior Vice President before moving to Wunderman, the premier direct marketing agency and then on to public relations giant Burson Marsteller. Then he decamped for the Bertelsmann Music Group where he was VP Marketing and Sales for Special Products. He left BMG in 1995 to join Seth Godin in an internet start-up: Yoyodyne.

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Shelly Lipton
Shelly Lipton

Shelly has been a leader in the community of integrated direct and digital marketing. Following a research and account management career at Interpublic Group and Y&R, where he honed his skills in advertising, direct marketing, and public relations, Shelly formed his own company, LCG, and successfully pioneered a direct and loyalty marketing specialty in the multicultural space.

Under his leadership, LCG was the first-place recipient of the 2000 CBS Recognizing Excellence Awards for a Pfizer-relationship/loyalty marketing program. Shelly received the Crystal Prism Award from the American Advertising Federation for his contribution to social marketing. The Direct Marketing Association's DIRECTO Council awarded Shelly the Marketing Professional of the Year.

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Lynn Wunderman
Lynn Wunderman

Lynn Wunderman has 30 years of Direct Marketing experience focused on strategic planning, database management, market analysis, and behavioral targeting. In her current consulting role she provides strategic marketing and analytic services to a variety of companies, including package goods marketers, online and mobile media companies, multi-channel merchants, luxury marketers, advertising agencies, technology and database service organizations.

Previously Lynn was President, CEO of I-Behavior, a co-operative database company serving the targeting needs of multi-channel marketers (sold to WPP in 2010). I-Behavior was first to capture SKU-level transactions, to provide attitudinal targeting, and to apply the co-op business model to Internet advertising through its aCerno division (sold to Akamai in 2008).

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