O
OpenX
Marketing · Pasadena, United States · Founded 2007
Talent graph
OpenX's talent
Source: Dealroom Talent Intelligence.
Ownership
Who owns OpenX
Estimated cap table from Dealroom's shareholder data — share of equity by holder. Stakes as last recorded by Dealroom (2026). Percentages are indicative.
Some investors are hidden on this public profile. See the full cap table on Dealroom →
OpenX mafia
Startups founded by OpenX alumni
Former OpenX employees who went on to start their own companies. Sorted by Dealroom signal score.
Jonathan MillerUnited States
Miki RapoportUnited States
Igor TelyatnikovUnited States
Michael ToddUnited States
Manoj Kumar GoyalUnited States
Kent WakefordUnited States
Alexander DeanUnited Kingdom
Carla ViegasEstonia
Matthieu AubryPoland
John LindenUnited StatesGlobal footprint
Where OpenX has talent and traffic
team presence
across markets
Capital deployed
OpenX's 3 investments and acquisitions.
Every disclosed deal where OpenX appeared as a backer or acquirer, 2012–2017. Toggle between venture rounds, M&A, or both. The map below is grouped by the target company's sector — the colored pill on each chip is the round type.
3 deals across OpenX's capital deployment.
Where the deals concentrate by sector, stage, and decade.
02 · Portfolio market map
OpenX's portfolio, mapped.
Each chip is one company. Pill colour shows round type — green for Seed, blue for Series A, purple for B/C+, pink for late-stage, amber for M&A. Bigger sectors keep their full list behind “+ N more”.
Market sentiment
What the market is saying about OpenX
An AI-synthesized read of the highest-engagement posts about OpenX on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
See OpenX on the full Dealroom platform
Live deal flow, founder pedigree, hiring signals, revenue trajectory, and the full cap table.