NEW YORK, Oct. 23, 2025 — OpenX Technologies, Inc., one of the world’s leading omnichannel supply-side platforms, today announced a strategic expansion of its leadership team, appointing five senior executives across product, marketing, communications, and operations.
This expansion reflects OpenX’s commitment to three core foundations: delivering transparent, high-quality inventory; driving innovation in data; and ensuring superior performance that directs more budget into working media. Together, these executives will help scale OpenXSelect™, the company’s next-generation curation and supply-side targeting platform, simplifying the complexity of programmatic and making media work better for buyers and publishers alike.
Sethu Balasubramanian, Vice President of Product
Nick Van Amburg, Vice President of Product Marketing
Tiffany Tai, Vice President of Communications
Nate Fishler, Vice President of Global Solutions and Technical Operations
Emily Kramer, Head of Agency Curation and Commerce Media
“Programmatic, and even curation, have remained overly complicated for the people buying and selling media,” said John Gentry, CEO of OpenX. “AI is giving us the chance to simplify what has been too complex and make our customers’ and partners’ jobs easier. However, technology alone isn’t enough. It requires people with deep product expertise, customer focus, clear communication, and the ability to innovate and maximize value to build intelligent ad tech and champion our high standards for quality, performance, and responsibility. With these new leaders, OpenX is doubling down on our mission to make media work better for buyers and publishers.”
Sethu Balasubramanian, Vice President of Product
A seasoned product leader with over three decades of experience across TiVo, Undertone (Perion), Cadent, and Xandr (Microsoft), Balasubramanian will lead product development for OpenXSelect and its self-serve infrastructure. In this new role, Balasubramanian will drive global platform strategy with a focus on automation, usability, and international scale across CTV, display, native, mobile, app, and video.
Nick Van Amburg, Vice President of Product Marketing
Van Amburg will lead global product marketing for the company’s entire product offering, including OpenXSelect. A seasoned marketing leader from Condé Nast, The New York Times, and Dotdash Meredith, Van Amburg has a strong track record of launching innovative ad products for some of the biggest publishers in the world. He brings over twenty years of experience to the company and a sharp focus on how product capabilities align with buyer needs — particularly in cross-regional markets including the U.S., Europe, LATAM, and APAC.
Tiffany Tai, Vice President of Communications
Tai will oversee all internal and external communications, including corporate communications, media relations, analyst engagement, and employee communications. She brings over a decade of experience in corporate and product communications, brand storytelling, crisis management, and executive communications from leadership roles at Hulu, Activision Blizzard, and Integral Ad Science.
Nate Fishler, Vice President of Global Solutions and Technical Operations
As OpenX evolves its platform and global footprint, Fishler will oversee operational execution, streamlining processes, scaling platform delivery, and supporting the growth of OpenXSelect. Fishler brings more than a decade of experience from Index Exchange, TikTok, Kargo, and a record of accelerating revenue growth, deepening partnerships, and aligning internal strategy with external demand.
Emily Kramer, Head of Agency Curation & Commerce Media
Kramer will lead strategy for agency partnerships and retail media enablement, with a focus on helping partners navigate offsite monetization and maximizing the value of their commerce data in curated media environments. She brings deep experience from advising CPGs and retailers like Target’s Roundel, CVS, Macy’s, and The Home Depot through her previous work at Merkle and as an independent retail media consultant.
