As CEO of AppNexus, the world leader in real-time advertising technology, Brian and his team are building the company to be the lynchpin of the display advertising industry, offering a highly scalable ad technology platform upon which other companies build their advertising businesses. Widely considered a visionary in online advertising, Brian O’Kelley created the first successful ad exchange as CTO of Right Media (acquired by Yahoo! for $850MM in July 2007) before co-founding AppNexus.

An innovator throughout his career, Brian was CEO of Netamorphosis, an early social networking and e-commerce site, co-founder of Cetova, a web-based reporting and analytics platform for enterprise financial systems, and EVP at LogicSpan, a consulting and technology integration firm specializing in real-time personalization and real-time ad optimization.

Today, in addition to his role at AppNexus, Brian is also an active investor in and early-stage advisor to dozens of ad technology companies in the ecosystem including Invite Media (now owned by Google), MediaMath, Media6Degrees and Solve Media. Brian has a computer science degree from Princeton University.