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Avec Mat
Avec Mat
Author: Mathieu Roche
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© 2026 Avec Mat
Description
"Avec Mat" is the adtech podcast launched by ID5's CEO and Co-Founder, Mathieu Roche. He's always wanted to know what pushed people to start companies, what made them successful, and how to navigate the ups & downs of startup life, so he decided to ask them!
8 Episodes
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This week, Mathieu sat down with Samantha Jacobson, VP of Monetization Partnerships at OpenAI, and ex-Chief Strategy Officer at The Trade Desk. They spoke about what good leadership looks like, her experience in adtech as a female leader and the responsibility that comes with it, and she also shared how she balances personal life and work. She also touched upon her recent move to OpenAI, and how it has totally revolutionzed the way she works.
This week, Mathieu spoke with Bill Wise, co-founder and CEO of Mediaocean, about his experiences in leadership at multiple companies, the importance of neutrality and independence in advertising, taking care of the “plumbing and electricity” of adtech and the weight associated with that, and more.
This week, Mathieu sat down with Joe Root, CEO and co-founder of Permutive, for one of the more reflective conversations in the series, all about the relationships that matter when you're building a company. They talked about why having a co-founder to lean on makes all the difference, how being more open with your board helps you get the support you need, and how to draw a clear line between work and home.
This week, Mathieu sat down with Ari Paparo, co-founder and CEO of Marketecture Media, #1 adtech influencer and ex-CEO and co-founder of Beeswax, to discuss his journey from ad tech insider to influencer. Tune in to hear how he founded, grew and sold a company, created a media empire in advertising, became the voice of adtech, and more.
In this episode of Avec Mat, Mathieu Roche sits down with Brian O'Kelley, founder of AppNexus, often credited as the creator and Godfather or programmatic advertising. Together, they spoke about what is was like to create technology that completely revolutionized digital advertising, how to deal with cult-like followings and ego as a founder, and how he thinks AI will impact advertising.



