# ON24 funding: rounds and investors > ON24 has raised $36M across 3 rounds since 2004. Investors include Canaan, U.S. Venture Partners and Rho Capital Partners. Every round with its source. Source: https://millionrounds.com/company/on24 (Millionrounds; every figure on the page links to its filing or article) United States · [Venture startup](https://millionrounds.com/companies) # Who invested in *ON24* 3 rounds we have observed, with the 9 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it. Funding summary Updated 26 Oct 2026 **$36M** raised across 3 rounds since 2004, from 3 sources **$3.3M** Series E **$8.0M** Venture **$25M** Round - **Latest round:** Round, $25M Apr 2016 - **Step-up i:** 3.1× - **Investors:** 9 See who backed them ## The funding story Each circle is a round, placed by date and sized by amount. The line above is the running total. 2004 2006 2008 2010 2012 2014 2016 **$3.3M** Series E **$8.0M** Venture **$25M** Round - **First round:** Series E, $3.3M - **Biggest round:** $25M - **Usual gap between rounds:** 7.9 years ## The rounds - **Apr 2016** Round **$25M** *6 new* *3 returning* [Canaan](https://millionrounds.com/fund/canaan-partners) [U.S. Venture Partners](https://millionrounds.com/fund/u-s-venture-partners-usvp) [Rho Capital Partners](https://millionrounds.com/fund/rho-capital-partners) [Industry Ventures](https://millionrounds.com/fund/industry-ventures) [Band of Angels](https://millionrounds.com/fund/band-of-angels) [Gold Hill Capital](https://millionrounds.com/fund/gold-hill-capital) [ATEL Ventures](https://millionrounds.com/fund/atel-ventures) [Second Alpha Partners](https://millionrounds.com/fund/second-alpha-partners) Goldman Sachs Private Capital Investing Group Source recorded - **May 2008** Venture **$8.0M** *3 returning* [Canaan](https://millionrounds.com/fund/canaan-partners) [U.S. Venture Partners](https://millionrounds.com/fund/u-s-venture-partners-usvp) [Rho Capital Partners](https://millionrounds.com/fund/rho-capital-partners) Reported by techcrunchit.com - **May 2004** Series E **$3.3M** *3 new* [Canaan](https://millionrounds.com/fund/canaan-partners) [U.S. Venture Partners](https://millionrounds.com/fund/u-s-venture-partners-usvp) [Rho Capital Partners](https://millionrounds.com/fund/rho-capital-partners) From a historical funding record ## Who was in which round The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led. **Series E** 2004 **Venture** 2008 **Round** 2016 [Canaan](https://millionrounds.com/fund/canaan-partners) [U.S. Venture Partners](https://millionrounds.com/fund/u-s-venture-partners-usvp) [Rho Capital Partners](https://millionrounds.com/fund/rho-capital-partners) [Industry Ventures](https://millionrounds.com/fund/industry-ventures) [Band of Angels](https://millionrounds.com/fund/band-of-angels) [Gold Hill Capital](https://millionrounds.com/fund/gold-hill-capital) [ATEL Ventures](https://millionrounds.com/fund/atel-ventures) [Second Alpha Partners](https://millionrounds.com/fund/second-alpha-partners) Goldman Sachs Private Capital Investing Group ## Everyone who backed them [Canaan](https://millionrounds.com/fund/canaan-partners) VC firm **3** rounds [U.S. Venture Partners](https://millionrounds.com/fund/u-s-venture-partners-usvp) VC firm **3** rounds [Rho Capital Partners](https://millionrounds.com/fund/rho-capital-partners) Private equity **3** rounds [Industry Ventures](https://millionrounds.com/fund/industry-ventures) VC firm **1** round [Band of Angels](https://millionrounds.com/fund/band-of-angels) Angel network **1** round [Gold Hill Capital](https://millionrounds.com/fund/gold-hill-capital) VC firm **1** round [ATEL Ventures](https://millionrounds.com/fund/atel-ventures) VC firm **1** round [Second Alpha Partners](https://millionrounds.com/fund/second-alpha-partners) Private credit **1** round Goldman Sachs Private Capital Investing Group no record of our own yet **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=on24). ## Also claim to have backed them These 2 firms list ON24 as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above. [Skagerak Capital](https://millionrounds.com/fund/skagerak-capital) VC firm Per its own site [Skagerak Maturo](https://millionrounds.com/fund/skagerak-maturo) VC firm Per its own site ## Quick answers about ON24 ### Who invested in ON24? ON24's investors include Canaan, U.S. Venture Partners, Rho Capital Partners, Industry Ventures and Band of Angels, and 4 more on record. ### How much has ON24 raised? ON24 has raised $36M across 3 rounds since 2004. ### When did ON24 last raise? ON24's most recent round, $25M, was in Apr 2016. ### What was ON24's biggest round? Its most recent round, $25M in Apr 2016, is also its largest on record. ### Who backed ON24 first? ON24's first round on record, in May 2004, was backed by Canaan, U.S. Venture Partners and Rho Capital Partners. ### What stage is ON24 at? ON24's latest named round is a Venture, in May 2008. ### Where is ON24 based? ON24 is based in the United States. ## Find investors like these Search every investor by what they have actually funded, then narrow to your stage and market. Free. Open the investor searchOr these rounds in the app