OneTrueFan
2 known investors
Find your way into OneTrueFan
Sign up to find every way you can get introduced to OneTrueFan
- Your email: who you already know at OneTrueFan, and who your contacts know
- 2nd- and 3rd-degree connections: people you know who worked, studied or invested with the OneTrueFan team
- Your LinkedIn: the connections who can make the intro for you
We rank every route by how warm it is, so you raise on warm intros instead of cold emails.
OneTrueFan is a browser and website add-on that surfaces the communities of visitors at websites, letting users "show up" across the sites they visit and site owners see their fans. It aggregates social data from services such as Twitter, Facebook, Tumblr, Posterous, Digg, and Delicious, and awards fan levels and badges.
Founders & leadership
EM

Eric Marcoullier
Investors · 2
500 Globallisted by 500 GlobalPalo Alto · $150K
How we know: open dataset · 500 Global portfolio 2026-08 · Not right? Tell us
First Round CapitalreportedSan Francisco · $100K – $20M
How we know: funding news · Not right? Tell us
In the news
Frequently asked questions
- What does OneTrueFan do?
- OneTrueFan is a browser and website add-on that surfaces the communities of visitors at websites, letting users "show up" across the sites they visit and site owners see their fans. It aggregates social data from services such as Twitter, Facebook, Tumblr, Posterous, Digg, and Delicious, and awards fan levels and badges.
- Who founded OneTrueFan?
- OneTrueFan was founded by Eric Marcoullier.
- Who are OneTrueFan's investors?
- OneTrueFan's investors include 500 Global, First Round Capital.

