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Zach Coelius

Operator

Zach Coelius is Managing Partner at Coelius Capital, his current venture investment firm. He previously founded Triggit, one of the earliest demand-side platforms and a pioneer in real-time bidding and programmatic advertising, which was acquired by Facebook in 2015; following the acquisition, Coelius joined Facebook as an integration lead until 2016. He is recognized as a veteran operator and investor with deep roots in ad tech infrastructure.

Last updated Jun 11, 2026 by ATDb automated enrichment

Role
Managing Partner
Company
Coelius Capital
Based
San Francisco, California, United States
Connections
3
Years in industry
15 years

Bio

Zach Coelius is Managing Partner at Coelius Capital, his current venture investment firm. He previously founded Triggit, one of the earliest demand-side platforms and a pioneer in real-time bidding and programmatic advertising, which was acquired by Facebook in 2015; following the acquisition, Coelius joined Facebook as an integration lead until 2016. He is recognized as a veteran operator and investor with deep roots in ad tech infrastructure.

Career

  • Integration Lead

    Facebook · 2015-2016

  • Founder & CEO

    Triggit · 2005-2015

Expertise & education

Expertise

Programmatic AdvertisingReal-Time Bidding (RTB)Demand-Side Platforms (DSP)Ad Exchange InfrastructureVenture CapitalEarly-Stage InvestingAd Tech InfrastructurePerformance Marketing

Education

  • BA, University of California, Berkeley

Speaking topics

Real-time bidding and programmatic advertising historyEarly-stage venture investingBuilding and scaling adtech startupsThe future of digital advertising infrastructure

Recognition

Notable achievements

  • Founded Triggit, one of the earliest demand-side platforms and a pioneer in real-time bidding technology
  • Triggit acquired by Facebook in 2015, recognizing its programmatic advertising infrastructure
  • Built Coelius Capital into an active early-stage venture fund with a focus on adtech and marketplace companies
  • Recognized as one of the earliest operators to commercialize RTB at scale
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