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About Us

AdYapper is an expert in ad viewability measurement and optimization. AdYapper's proprietary technology and methodology is unique to the marketplace and understands – down to individual consumers and ads – if and how long ads spend on the screen of those consumers. AdYapper is able to reveal new and valuable metrics in the digital ad landscape around Viewable Consumer Behavior. The metrics are used to understand the true impact of digital marketing efforts, aligning them with metrics typically limited to TV, in addition to enabling powerful optimizations - everything from eliminating ads that are unseen (but paid for), to generating more unique consumer eyeballs for substantially less cost. AdYapper provides a rich, multi-dimensional data set, with a full service dedicated account team to make the data highly actionable for its clients. The uses are expansive and applicable to many units within an organization - including media buyers, performance marketing teams, and promotions teams, to consumer analytics teams and beyond.

AdYapper is based in Chicago / New York, and is a proud TechStars & 1871 Chicago alumni. AdYapper’s advertising viewability measurement is accredited by the Media Ratings Council (MRC).


Elliot E. Hirsch
Founder & CEO
Wojo Wietecha
Co-Founder & CTO
Kal Patel
Co-Founder & EVP, Ad Products
Derek Huyser
Head of Business Development
Justin Osterman
Director, Media Solutions
Marc Billings
Senior Software Engineer
Kate Monks
Solutions Manager, Media Products
Jule Mammoser
Account Manager
Stacy Kelsey
Marketing Coordinator
Terrence Young
Software Engineer
Dan Russell
Senior Software Engineer
Shaya Greenberger
Account Manager Intern
Adam Wyeth
Web Developer Intern

Advisors & Mentors

Matt Maloney
Co-Founder & CEO, GrubHub Seamless
Paul Greenberg
Former CEO, CollegeHumor Media
Greg Mason
Tim Hanlon
Founder and CEO, The Vertere Group
David Naffziger
Chris Hogan
Founder, SouthSide Strategy


Investors include KGC Capital, David Cohen of TechStars, Laurel Touby, Paul Sethi, Sameer Jagetia, Ari Newman, Vip Sandhir of Brown Capital and Dave Lerner of Rugged Ventures.