# opendorse funding: rounds and investors > opendorse has raised $7.7M across 4 rounds since 2013. Investors include Serra Ventures, Advantage Capital and Invest Nebraska. Every round with its source. Source: https://millionrounds.com/company/opendorse (Millionrounds; every figure on the page links to its filing or article) United States · [Venture startup](https://millionrounds.com/companies) # Who invested in *opendorse* 4 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. Advertising & Adtech Martech Raised 9 months ago Funding summary Updated 26 Oct 2026 **$7.7M** raised across 4 rounds since 2013, from 4 sources **$300K** Seed **$1.8M** Series A **$3.5M** Series A **$2.1M** Venture - **Latest round:** Venture, $2.1M Feb 2026 - **Biggest round:** $3.5M Series A · Nov 2017 - **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. 2013 2015 2017 2019 2021 2023 2025 **$300K** Seed **$1.8M** Series A **$3.5M** Series A **$2.1M** Venture - **First round:** Seed, $300K - **Biggest round:** $3.5M - **Usual gap between rounds:** 2.6 years ## The rounds - **Feb 2026** Venture **$2.1M** *3 new* [Serra Ventures](https://millionrounds.com/fund/serra-ventures) [Advantage Capital](https://millionrounds.com/fund/advantage-capital) [Invest Nebraska](https://millionrounds.com/fund/invest-nebraska) Source recorded SEC filing: $2.1M sold, first sale Feb 2026 - **Nov 2017** Series A **$3.5M** *5 new* Dan Mannix Peter Gardiner Prince Amukamara Sean Bratches Serra Ventures/ Flyover Reported by FinSMEs - **Apr 2015** Series A **$1.8M** *1 new* [Flyover Capital](https://millionrounds.com/fund/flyover-capital) From a historical funding record - **Jun 2013** Seed **$300K** No investor was named in the report. 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. **Seed** 2013 **Series A** 2015 **Series A** 2017 **Venture** 2026 [Serra Ventures](https://millionrounds.com/fund/serra-ventures) [Advantage Capital](https://millionrounds.com/fund/advantage-capital) [Invest Nebraska](https://millionrounds.com/fund/invest-nebraska) [Flyover Capital](https://millionrounds.com/fund/flyover-capital) Dan Mannix Peter Gardiner Prince Amukamara Sean Bratches Serra Ventures/ Flyover ## Everyone who backed them [Serra Ventures](https://millionrounds.com/fund/serra-ventures) VC firm **1** round [Advantage Capital](https://millionrounds.com/fund/advantage-capital) Corporate VC **1** round [Invest Nebraska](https://millionrounds.com/fund/invest-nebraska) Government **1** round [Flyover Capital](https://millionrounds.com/fund/flyover-capital) VC firm **1** round Dan Mannix no record of our own yet **1** round Peter Gardiner no record of our own yet **1** round Prince Amukamara no record of our own yet **1** round Sean Bratches no record of our own yet **1** round Serra Ventures/ Flyover 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=opendorse). ## Also claim to have backed them These 3 firms list opendorse 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. [Nebraska Angel Network](https://millionrounds.com/fund/nebraska-angels) Angel network Per its own site [Sipadan Capital](https://millionrounds.com/fund/sipadan-capital) VC firm Per its own site [Cougar Athletic Fund](https://millionrounds.com/fund/cougar-athletic-fund) VC firm Per its own site ## Quick answers about opendorse ### Who invested in opendorse? opendorse's investors include Serra Ventures, Advantage Capital, Invest Nebraska, Flyover Capital and Dan Mannix, and 4 more on record. ### How much has opendorse raised? opendorse has raised $7.7M across 4 rounds since 2013. ### When did opendorse last raise? opendorse's most recent round was a Venture of $2.1M in Feb 2026. ### What was opendorse's biggest round? opendorse's largest round on record is $3.5M (Series A), in Nov 2017. ### Who backed opendorse first? opendorse's first round on record, in Apr 2015, was backed by Flyover Capital. ### What stage is opendorse at? opendorse's latest named round is a Venture, in Feb 2026. ### Where is opendorse based? opendorse is based in the United States. ## Companies like opendorse In the same sector, and raised in the last eighteen months. [**Kevel** $75M · Oct 2026](https://millionrounds.com/company/kevel)[**Whop** $400M · Oct 2026](https://millionrounds.com/company/whop)[**Different** $48M · Oct 2026](https://millionrounds.com/company/different)[**Gradient** $24M · Oct 2026](https://millionrounds.com/company/gradient)[**OuterSignal** $22M · Sept 2026](https://millionrounds.com/company/outersignal)[**Pipedrive** $90M · Sept 2026](https://millionrounds.com/company/pipedrive) ## 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