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Double Fusion

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Dynamic and integrated multi-platform in-game advertising network.

San Francisco, United StatesFounded 2004Marketing
Valuation $10–25M Last recorded · 2010
Total funding $50–100M Disclosed equity funding
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About Double Fusion

Double Fusion was a technology company specializing in dynamic in-game advertising. Founded in 2004, the company established itself as an independent provider of ad-serving technology and marketing services for the video game industry. It connected major brands with millions of video game players through its multi-platform network.

The company's core business model revolved around providing a full end-to-end solution for game developers and publishers to incorporate advertising into their games, creating an additional revenue stream. Double Fusion's technology allowed for the seamless integration of various ad formats, including dynamic billboard ads, 3D interactive objects, and video, without impacting gameplay. A key innovation was its fusion.runtime program, which separated the ad placement process from game development. This enabled developers to create new advertising spaces in completed games, including older titles from their back catalogs, offering unprecedented flexibility for advertisers to run dynamic campaigns.

Double Fusion's clients included Fortune 500 brands looking to reach the 17-and-older gaming demographic, as well as top-tier game publishers like NAMCO BANDAI, Ubisoft, and NCsoft. The company's sales force worked directly with advertisers and developers to execute customized campaigns. In 2006, Double Fusion acquired Eiko Media, an in-game agency specializing in product placements and storyline integrations, further enhancing its capabilities to build contextual advertising opportunities. The firm also expanded its network to include web properties, such as the video game-centric search engine Wazap, to offer advertisers multiple touchpoints with the gaming audience.

The company was privately held and headquartered in San Francisco, with additional offices in Chicago, New York, Jerusalem, London, and Tokyo. At its helm was Jonathan Epstein, who served as President and CEO.

Source: Dealroom company data

At a glance

Founded
2004
Headquarters
San Francisco, United States
Sector
Marketing

Investors

7 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series A2 investors entered at this stage

  • Accel
  • Jerusalem Venture Partners

Series B and later5 investors entered at this stage

Team profiled 9 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 2 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
🇺🇸 United States · San Francisco HQ
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Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Double Fusion on X, ranked by likes and reposts, corporate channels excluded.

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

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