# Echo funding: rounds and investors > Echo has raised $47M across 4 rounds since 2007. Investors include The Entrepreneurs'&, Tech Coast Angels and Altos Ventures. Every round with its source. Source: https://millionrounds.com/company/echo (Millionrounds; every figure on the page links to its filing or article) United States · [Series A startup](https://millionrounds.com/companies) # Who invested in *Echo* 4 rounds we have observed, with the 5 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. AI Biotech Healthcare Raised 11 months ago Funding summary Updated 26 Oct 2026 **$47M** raised across 4 rounds since 2007, from 4 sources **$1.2M** Series A **$3.6M** Series B **$7.5M** Series A **$35M** Series A - **Latest round:** Series A, $35M Dec 2025 - **Step-up i:** 4.7× - **Investors:** 5 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. 2007 2010 2013 2016 2019 2022 2025 **$1.2M** Series A **$3.6M** Series B **$7.5M** Series A **$35M** Series A - **First round:** Series A, $1.2M - **Biggest round:** $35M - **Usual gap between rounds:** 8.4 years ## The rounds - **Dec 2025** Series A **$35M** *1 new* [Notable Capital](https://millionrounds.com/fund/notable-capital) Source recorded - **Mar 2017** Series A **$7.5M** *2 new* [Tech Coast Angels](https://millionrounds.com/fund/tech-coast-angels) [Dolby Family Ventures](https://millionrounds.com/fund/dolby-family-ventures) Reported by FinSMEs - **Oct 2008** Series B **$3.6M** *1 new* *1 returning* [Altos Ventures](https://millionrounds.com/fund/altos-ventures) [The Entrepreneurs'&](https://millionrounds.com/fund/the-entrepreneurs-and) Reported by techcrunch.com - **Aug 2007** Series A **$1.2M** *1 new* [The Entrepreneurs'&](https://millionrounds.com/fund/the-entrepreneurs-and) Reported by techcrunch.com ## 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 A** 2007 **Series B** 2008 **Series A** 2017 **Series A** 2025 [The Entrepreneurs'&](https://millionrounds.com/fund/the-entrepreneurs-and) [Tech Coast Angels](https://millionrounds.com/fund/tech-coast-angels) [Altos Ventures](https://millionrounds.com/fund/altos-ventures) [Notable Capital](https://millionrounds.com/fund/notable-capital) [Dolby Family Ventures](https://millionrounds.com/fund/dolby-family-ventures) ## Everyone who backed them [The Entrepreneurs'&](https://millionrounds.com/fund/the-entrepreneurs-and) VC firm **2** rounds [Tech Coast Angels](https://millionrounds.com/fund/tech-coast-angels) VC firm **1** round [Altos Ventures](https://millionrounds.com/fund/altos-ventures) VC firm **1** round [Notable Capital](https://millionrounds.com/fund/notable-capital) VC firm **1** round [Dolby Family Ventures](https://millionrounds.com/fund/dolby-family-ventures) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=echo). ## Also claim to have backed them These 6 firms list Echo 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. [White Star Capital](https://millionrounds.com/fund/white-star-capital) VC firm Per its own site [Brad Keywell](https://millionrounds.com/fund/brad-keywell) Angel Per its own site [Equity Group Investments](https://millionrounds.com/fund/equity-group-investments) VC firm Per its own site [Finback Investment Partners](https://millionrounds.com/fund/finback-investment-partners) Private equity Per its own site [SVCI - Silicon Valley CISO Investments](https://millionrounds.com/fund/svci-silicon-valley-ciso-investments) Angel network Per its own site [TJC](https://millionrounds.com/fund/tjc) Private equity Per its own site ## Quick answers about Echo ### Who invested in Echo? Echo's investors include The Entrepreneurs'&, Tech Coast Angels, Altos Ventures, Notable Capital and Dolby Family Ventures. ### How much has Echo raised? Echo has raised $47M across 4 rounds since 2007. ### When did Echo last raise? Echo's most recent round was a Series A of $35M in Dec 2025. ### What was Echo's biggest round? Its most recent round, $35M in Dec 2025, is also its largest on record. ### Who backed Echo first? Echo's first round on record, in Aug 2007, was backed by The Entrepreneurs'&. ### What stage is Echo at? Echo's latest named round is a Series A, in Dec 2025. ### Where is Echo based? Echo is based in the United States. ## Companies like Echo In the same sector, and raised in the last eighteen months. [**SpaceX** $42B · Oct 2026](https://millionrounds.com/company/spacex)[**xPay** $1.5M · Oct 2026](https://millionrounds.com/company/xpay)[**Star Therapeutics** $325M · Oct 2026](https://millionrounds.com/company/star-therapeutics)[**FORT Robotics** $39M · Oct 2026](https://millionrounds.com/company/fort-robotics)[**Albert Invent** $20M · Oct 2026](https://millionrounds.com/company/albert-invent)[**Pika** $216M · Oct 2026](https://millionrounds.com/company/pika) ## 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