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Robert Horler

Operator

Robert Horler is the Chief Executive Officer of OpenX, a leading independent programmatic advertising exchange that connects publishers and advertisers at scale across display, video, and mobile inventory. OpenX is known for its focus on supply-side quality, brand safety, and sustainable programmatic infrastructure. Horler brings significant experience in digital media and advertising to the role. Prior to OpenX, he held senior leadership positions at major media and advertising organizations, including serving as CEO of Dentsu Aegis Network Canada, where he oversaw a broad portfolio of media and digital agencies. His background spans agency leadership, media strategy, and digital transformation. At OpenX, Horler has focused on reinforcing the company's position as a premium programmatic marketplace, emphasizing transparency, publisher monetization, and responsible advertising practices in an increasingly competitive ad exchange landscape.

Last updated Nov 3, 2026 by ATDb automated enrichment

Role
Chief Executive Officer
Company
OpenX
Based
Los Angeles, California, United States

AI-drafted from public sources1 source cited

Years in industry
25 years

Bio

Robert Horler is the Chief Executive Officer of OpenX, a leading independent programmatic advertising exchange that connects publishers and advertisers at scale across display, video, and mobile inventory. OpenX is known for its focus on supply-side quality, brand safety, and sustainable programmatic infrastructure. Horler brings significant experience in digital media and advertising to the role. Prior to OpenX, he held senior leadership positions at major media and advertising organizations, including serving as CEO of Dentsu Aegis Network Canada, where he oversaw a broad portfolio of media and digital agencies. His background spans agency leadership, media strategy, and digital transformation. At OpenX, Horler has focused on reinforcing the company's position as a premium programmatic marketplace, emphasizing transparency, publisher monetization, and responsible advertising practices in an increasingly competitive ad exchange landscape.

Expertise & education

Expertise

Programmatic AdvertisingSupply-Side PlatformsDigital MediaAd Exchange OperationsPublisher MonetizationMedia Agency LeadershipBrand SafetyDigital Transformation

Speaking topics

Programmatic advertisingPublisher monetizationAd tech transparencyThe future of the open web

Recognition

Notable achievements

  • Led OpenX as CEO of one of the largest independent programmatic advertising exchanges globally
  • Previously served as CEO of Dentsu Aegis Network Canada, overseeing a major multi-agency media group