OpenX Technologies
California-based adtech company
From Wikipedia, the free encyclopedia
OpenX Technologies, Inc. is a programmatic advertising technology company.[2] It has raised over $75 million from Accel, Index, Samsung, Dentsu, Mangrove Capital and others.[3]
Company type | Private |
|---|---|
| Industry | Online Advertising, Big Data |
| Founded | 2008 |
| Founder |
|
| Headquarters | Pasadena, California |
Key people |
|
| Products | Ad Server, Ad exchange, SSP |
Number of employees | 200+[1] |
| Website | openx |
OpenX has offices in Pasadena (HQ), New York, Tokyo, London, and Kraków.[4]
History
In 1998, OpenX began as an open-source project providing free digital and mobile advertising technology. Their key revenue drivers during this time came from service and tech support.[5]
In 2008 the company commercialized the open-source ad server, appointing Tim Cadogan as its CEO and first U.S. employee.[6]
In September 2017, OpenX acquired two publisher tools, Mezzobit and PubNation.[7]
After laying off "around 100 employees" in December 2018,[8] the following month OpenX announced plans to move all on-premises workloads fully into the Google Cloud Platform by Q2 2019.[9]
In May 2019, OpenX launched OpenAudience, a planning and targeting tool based on LiveRamp and Tapad data.[10]
In January 2020, OpenX announced that CEO and co-founder Tim Cadogan was leaving to become the CEO of GoFundMe and that President John Gentry would step into the CEO role.[11] This was followed in April by another round of layoffs where 15% of the company was affected.[1]
In December 2021, the Federal Trade Commission announced that OpenX would pay a $2 million fine "to settle allegations that the company violated federal children's privacy law." Originally, the fine was to be $7.5 million but it was reduced "due to the company's inability to pay."[12][13]
In August 2025, OpenX filed a lawsuit against Google alleging that "the tech giant engaged in a range of anti-competitive behaviors" in the digital advertising market.[14][15]
In February 2026, OpenX announced the appointment of Matt Sattel to CEO, after the death of John Gentry the previous month.[16]