# Arena funding: rounds and investors > Arena has raised $401M across 7 rounds since 2021. Investors include Andreessen Horowitz, Felicis and Kleiner Perkins. Every round with its source. Source: https://millionrounds.com/company/arena (Millionrounds; every figure on the page links to its filing or article) United States · [Series B startup](https://millionrounds.com/companies) # Who invested in *Arena* 7 rounds we have observed, with the 20 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 Consumer Apps Enterprise Software Raised 1 month ago Funding summary Updated 26 Oct 2026 **$401M** raised across 7 rounds since 2021, from 10 sources **$5.2M** Seed **$14M** Series A **$1.2M** Pre-seed **$750K** Seed **$30M** Series B **$150M** Series A **$200M** Series B - **Latest round:** Series B, $200M Oct 2026 - **Led by:** Lightspeed Venture Partners and Khosla Ventures - **Step-up i:** 1.3× - **Investors:** 20 (2 led) 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. 2022 2023 2024 2025 2026 **$5.2M** Seed **$14M** Series A **$1.2M** Pre-seed **$750K** Seed **$30M** Series B **$150M** Series A **$200M** Series B - **First round:** Seed, $5.2M - **Biggest round:** $200M - **Usual gap between rounds:** 9 months ## The rounds - **Oct 2026** Series B **$200M** *6 new* *2 returning* [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) Lead [Khosla Ventures](https://millionrounds.com/fund/khosla-ventures) Lead [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) [Salesforce Ventures](https://millionrounds.com/fund/salesforce-ventures) [Felicis](https://millionrounds.com/fund/felicis-ventures) [Endeavor Catalyst](https://millionrounds.com/fund/endeavor-catalyst) [Dell Technologies Capital](https://millionrounds.com/fund/dell-technologies-capital) [01 Advisors](https://millionrounds.com/fund/01-advisors) Reported by Firms' own news pages and 3 others - **Jan 2026** Series A **$150M** *3 new* *1 returning* [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) [Felicis](https://millionrounds.com/fund/felicis-ventures) [Kleiner Perkins](https://millionrounds.com/fund/kleiner-perkins) [The House Fund](https://millionrounds.com/fund/the-house-fund) Source recorded - **Apr 2025** Series B **$30M** *4 new* [Founders Fund](https://millionrounds.com/fund/founders-fund) [LD Capital](https://millionrounds.com/fund/xie) [Initialized Capital](https://millionrounds.com/fund/initialized-capital) [Shield Capital](https://millionrounds.com/fund/shield-capital) Source recorded - **Jun 2023** Seed **$750K** No investor was named in the report. Source recorded - **Jan 2023** Pre-seed **$1.2M** *1 new* [Kleiner Perkins](https://millionrounds.com/fund/kleiner-perkins) Source recorded - **Mar 2022** Series A **$14M** *5 new* [Techstars](https://millionrounds.com/fund/techstars) [Plug and Play](https://millionrounds.com/fund/plug-and-play) [Right Side Capital Management](https://millionrounds.com/fund/right-side-capital-management) [CRV](https://millionrounds.com/fund/crv) [Craft Ventures](https://millionrounds.com/fund/craft-ventures) Source recorded - **Jul 2021** Seed **$5.2M** *1 new* [Courtside Ventures](https://millionrounds.com/fund/courtside-ventures) Source recorded ## 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** 2021 **Series A** 2022 **Pre-seed** 2023 **Seed** 2023 **Series B** 2025 **Series A** 2026 **Series B** 2026 [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) [Felicis](https://millionrounds.com/fund/felicis-ventures) [Kleiner Perkins](https://millionrounds.com/fund/kleiner-perkins) [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) L [Khosla Ventures](https://millionrounds.com/fund/khosla-ventures) L [Techstars](https://millionrounds.com/fund/techstars) [Plug and Play](https://millionrounds.com/fund/plug-and-play) [Founders Fund](https://millionrounds.com/fund/founders-fund) [Right Side Capital Management](https://millionrounds.com/fund/right-side-capital-management) [Salesforce Ventures](https://millionrounds.com/fund/salesforce-ventures) ## Everyone who backed them [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) VC firm **2** rounds [Felicis](https://millionrounds.com/fund/felicis-ventures) VC firm **2** rounds [Kleiner Perkins](https://millionrounds.com/fund/kleiner-perkins) VC firm **2** rounds [Lightspeed Venture Partners](https://millionrounds.com/fund/lightspeed-venture-partners) VC firm **1** round, led 1 [Khosla Ventures](https://millionrounds.com/fund/khosla-ventures) VC firm **1** round, led 1 [Techstars](https://millionrounds.com/fund/techstars) VC firm **1** round [Plug and Play](https://millionrounds.com/fund/plug-and-play) Accelerator **1** round [Founders Fund](https://millionrounds.com/fund/founders-fund) VC firm **1** round [Right Side Capital Management](https://millionrounds.com/fund/right-side-capital-management) VC firm **1** round [Salesforce Ventures](https://millionrounds.com/fund/salesforce-ventures) Corporate VC **1** round [CRV](https://millionrounds.com/fund/crv) VC firm **1** round [Endeavor Catalyst](https://millionrounds.com/fund/endeavor-catalyst) Corporate VC **1** round [Craft Ventures](https://millionrounds.com/fund/craft-ventures) VC firm **1** round [LD Capital](https://millionrounds.com/fund/xie) VC firm **1** round [Initialized Capital](https://millionrounds.com/fund/initialized-capital) VC firm **1** round [Dell Technologies Capital](https://millionrounds.com/fund/dell-technologies-capital) Corporate VC **1** round [Courtside Ventures](https://millionrounds.com/fund/courtside-ventures) VC firm **1** round [The House Fund](https://millionrounds.com/fund/the-house-fund) Accelerator **1** round [Shield Capital](https://millionrounds.com/fund/shield-capital) VC firm **1** round [01 Advisors](https://millionrounds.com/fund/01-advisors) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=arena). ## Quick answers about Arena ### Who invested in Arena? Arena's investors include Andreessen Horowitz, Felicis, Kleiner Perkins, Lightspeed Venture Partners and Khosla Ventures, and 15 more on record. Lightspeed Venture Partners led its latest round. ### How much has Arena raised? Arena has raised $401M across 7 rounds since 2021. ### When did Arena last raise? Arena's most recent round was a Series B of $200M in Oct 2026, led by Lightspeed Venture Partners. ### What was Arena's biggest round? Its most recent round, $200M in Oct 2026, is also its largest on record. ### Who backed Arena first? Arena's first round on record, in Jul 2021, was backed by Courtside Ventures. ### What stage is Arena at? Arena's latest named round is a Series B, in Oct 2026. ### Where is Arena based? Arena is based in the United States. ### Who led Arena's rounds? Lightspeed Venture Partners led the Series B in 2026. ## Companies like Arena 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)[**Albert Invent** $20M · Oct 2026](https://millionrounds.com/company/albert-invent)[**FORT Robotics** $39M · Oct 2026](https://millionrounds.com/company/fort-robotics)[**Pika** $216M · Oct 2026](https://millionrounds.com/company/pika)[**Vertical Semiconductor** $84M · Oct 2026](https://millionrounds.com/company/vertical-semiconductor) ## 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