# Cortex funding: rounds and investors > Cortex has raised $151M across 5 rounds since 2011. Investors include Y Combinator, Techstars and Sequoia Capital. Every round with its source. Source: https://millionrounds.com/company/cortex (Millionrounds; every figure on the page links to its filing or article) United States · [Series C startup](https://millionrounds.com/companies) # Who invested in *Cortex* 5 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 Y Combinator: W20 Funding summary Updated 26 Oct 2026 **$151M** raised across 5 rounds since 2011, from 5 sources **$500K** Seed **$743K** Crowdfunding **$90M** Growth **$60M** Series C - **Latest round:** Series C, $60M Sept 2024 - **Biggest round:** $90M Growth · Dec 2023 - **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. 2011 2013 2015 2017 2019 2021 2023 **?** Seed **$500K** Seed **$743K** Crowdfunding **$90M** Growth **$60M** Series C - **First round:** Seed - **Biggest round:** $90M - **Usual gap between rounds:** 4.1 years ## The rounds - **Sept 2024** Series C **$60M** *5 new* [Y Combinator](https://millionrounds.com/fund/y-combinator) [Sequoia Capital](https://millionrounds.com/fund/sequoia-capital) [IVP](https://millionrounds.com/fund/ivp) [Craft Ventures](https://millionrounds.com/fund/craft-ventures) [Scale Venture Partners](https://millionrounds.com/fund/scale-venture-partners) Source recorded - **Dec 2023** Growth **$90M** No investor was named in the report. Source recorded SEC filing: $133M sold, first sale Nov 2023 - **Feb 2022** Crowdfunding **$743K** *1 new* [Techstars](https://millionrounds.com/fund/techstars) Source recorded - **Mar 2015** Seed **$500K** *2 new* [Jere Doyle](https://millionrounds.com/fund/jere-doyle) Josh Adler From a historical funding record - **Mar 2011** Seed **Amount undisclosed** *1 new* [i/o Ventures](https://millionrounds.com/fund/i-o-ventures) Reported by ventures.io ## 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** 2011 **Seed** 2015 **Crowdfunding** 2022 **Growth** 2023 **Series C** 2024 [Y Combinator](https://millionrounds.com/fund/y-combinator) [Techstars](https://millionrounds.com/fund/techstars) [Sequoia Capital](https://millionrounds.com/fund/sequoia-capital) [IVP](https://millionrounds.com/fund/ivp) [Craft Ventures](https://millionrounds.com/fund/craft-ventures) [Scale Venture Partners](https://millionrounds.com/fund/scale-venture-partners) [i/o Ventures](https://millionrounds.com/fund/i-o-ventures) [Jere Doyle](https://millionrounds.com/fund/jere-doyle) Josh Adler ## The exit Exit Buyer Price When Acquired Backplane undisclosed Feb 2012 From historical deal records. Wrong? [Tell us](https://millionrounds.com/corrections?slug=cortex). ## Everyone who backed them [Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **1** round [Techstars](https://millionrounds.com/fund/techstars) VC firm **1** round [Sequoia Capital](https://millionrounds.com/fund/sequoia-capital) VC firm **1** round [IVP](https://millionrounds.com/fund/ivp) VC firm **1** round [Craft Ventures](https://millionrounds.com/fund/craft-ventures) VC firm **1** round [Scale Venture Partners](https://millionrounds.com/fund/scale-venture-partners) VC firm **1** round [i/o Ventures](https://millionrounds.com/fund/i-o-ventures) VC firm **1** round [Jere Doyle](https://millionrounds.com/fund/jere-doyle) Angel network **1** round Josh Adler 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=cortex). ## Quick answers about Cortex ### Who invested in Cortex? Cortex's investors include Y Combinator, Techstars, Sequoia Capital, IVP and Craft Ventures, and 4 more on record. ### How much has Cortex raised? Cortex has raised $151M across 5 rounds since 2011. One round did not disclose an amount, so the total is a floor. ### When did Cortex last raise? Cortex's most recent round was a Series C of $60M in Sept 2024. ### What was Cortex's biggest round? Cortex's largest round on record is $90M (Growth), in Dec 2023. ### Who backed Cortex first? Cortex's first round on record, in Mar 2011, was backed by i/o Ventures. ### What stage is Cortex at? Cortex's latest named round is a Series C, in Sept 2024. ### Where is Cortex based? Cortex is based in the United States. ## Companies like Cortex 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)[**Gradient** $24M · Oct 2026](https://millionrounds.com/company/gradient)[**Pipedrive** $90M · Sept 2026](https://millionrounds.com/company/pipedrive)[**7Pi** $125K · Sept 2026](https://millionrounds.com/company/7pi)[**Zeely** $8.8M · Sept 2026](https://millionrounds.com/company/zeely) ## 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