# Siena AI funding: rounds and investors > Siena AI has raised $23M across 2 rounds since 2024. Investors include Sierra Ventures, York IE and Village Global. Every round with its source. Source: https://millionrounds.com/company/siena-ai (Millionrounds; every figure on the page links to its filing or article) United States · [Series A startup](https://millionrounds.com/companies) # Who invested in *Siena AI* 2 rounds we have observed, with the 8 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 Customer Experience E-commerce Social Media Raised 1 month ago Funding summary Updated 26 Oct 2026 **$23M** raised across 2 rounds since 2024, from 2 sources **$6.0M** Seed **$17M** Series A - **Latest round:** Series A, $17M Oct 2026 - **Led by:** York IE - **Step-up i:** 2.8× - **Investors:** 8 (1 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. 2025 2026 **$6.0M** Seed **$17M** Series A - **First round:** Seed, $6.0M - **Biggest round:** $17M - **Between rounds:** 2.1 years ## The rounds - **Oct 2026** Series A **$17M** *4 new* *1 returning* [York IE](https://millionrounds.com/fund/york-ie) Lead [Sierra Ventures](https://millionrounds.com/fund/sierra-ventures) [Aglaé Ventures](https://millionrounds.com/fund/aglae-ventures-aglae-ventures-by-groupe-arnault) [superangel.fund](https://millionrounds.com/fund/superangel-fund) [Joyance Ventures](https://millionrounds.com/fund/joyance-ventures) Reported by The Recursive - **Sept 2024** Seed **$6.0M** *4 new* [Village Global](https://millionrounds.com/fund/village-global-2) [Sierra Ventures](https://millionrounds.com/fund/sierra-ventures) [Superangel](https://millionrounds.com/fund/superangel) [Gapminder VC](https://millionrounds.com/fund/gapminder-vc) 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** 2024 **Series A** 2026 [Sierra Ventures](https://millionrounds.com/fund/sierra-ventures) [York IE](https://millionrounds.com/fund/york-ie) L [Village Global](https://millionrounds.com/fund/village-global-2) [Superangel](https://millionrounds.com/fund/superangel) [Gapminder VC](https://millionrounds.com/fund/gapminder-vc) [Aglaé Ventures](https://millionrounds.com/fund/aglae-ventures-aglae-ventures-by-groupe-arnault) [superangel.fund](https://millionrounds.com/fund/superangel-fund) [Joyance Ventures](https://millionrounds.com/fund/joyance-ventures) ## Everyone who backed them [Sierra Ventures](https://millionrounds.com/fund/sierra-ventures) VC firm **2** rounds [York IE](https://millionrounds.com/fund/york-ie) VC firm **1** round, led 1 [Village Global](https://millionrounds.com/fund/village-global-2) VC firm **1** round [Superangel](https://millionrounds.com/fund/superangel) VC firm **1** round [Gapminder VC](https://millionrounds.com/fund/gapminder-vc) VC firm **1** round [Aglaé Ventures](https://millionrounds.com/fund/aglae-ventures-aglae-ventures-by-groupe-arnault) Corporate VC **1** round [superangel.fund](https://millionrounds.com/fund/superangel-fund) VC firm **1** round [Joyance Ventures](https://millionrounds.com/fund/joyance-ventures) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=siena-ai). ## Quick answers about Siena AI ### Who invested in Siena AI? Siena AI's investors include Sierra Ventures, York IE, Village Global, Superangel and Gapminder VC, and 3 more on record. York IE led its latest round. ### How much has Siena AI raised? Siena AI has raised $23M across 2 rounds since 2024. ### When did Siena AI last raise? Siena AI's most recent round was a Series A of $17M in Oct 2026, led by York IE. ### What was Siena AI's biggest round? Its most recent round, $17M in Oct 2026, is also its largest on record. ### Who backed Siena AI first? Siena AI's first round on record, in Sept 2024, was backed by Village Global, Sierra Ventures and Superangel and 1 others. ### What stage is Siena AI at? Siena AI's latest named round is a Series A, in Oct 2026. ### Where is Siena AI based? Siena AI is based in the United States. ### Who led Siena AI's rounds? York IE led the Series A in 2026. ## Companies like Siena AI 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