# Async funding: rounds and investors > Async has raised $14M across 2 rounds since 2024. Investors include Y Combinator, Correlation Ventures and Sierra Ventures. Every round with its source. Source: https://millionrounds.com/company/async (Millionrounds; every figure on the page links to its filing or article) United States · [Pre-seed startup](https://millionrounds.com/companies) # Who invested in *Async* 2 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 Funding summary Updated 26 Oct 2026 **$14M** raised across 2 rounds since 2024, from 2 sources **$14M** Series A **$500K** Pre-seed - **Latest round:** Pre-seed, $500K Sept 2025 - **Biggest round:** $14M Series A · Feb 2024 - **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. 2024 2025 **$14M** Series A **$500K** Pre-seed - **First round:** Series A, $14M - **Biggest round:** $14M - **Between rounds:** 19 months ## The rounds - **Sept 2025** Pre-seed **$500K** *1 new* [Y Combinator](https://millionrounds.com/fund/y-combinator) Source recorded - **Feb 2024** Series A **$14M** *4 new* [Correlation Ventures](https://millionrounds.com/fund/correlation-ventures) [Sierra Ventures](https://millionrounds.com/fund/sierra-ventures) [RTP Global](https://millionrounds.com/fund/rtp-global) [S16vc](https://millionrounds.com/fund/s16vc-founders-for-founders-fund) 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. **Series A** 2024 **Pre-seed** 2025 [Y Combinator](https://millionrounds.com/fund/y-combinator) [Correlation Ventures](https://millionrounds.com/fund/correlation-ventures) [Sierra Ventures](https://millionrounds.com/fund/sierra-ventures) [RTP Global](https://millionrounds.com/fund/rtp-global) [S16vc](https://millionrounds.com/fund/s16vc-founders-for-founders-fund) ## Everyone who backed them [Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **1** round [Correlation Ventures](https://millionrounds.com/fund/correlation-ventures) VC firm **1** round [Sierra Ventures](https://millionrounds.com/fund/sierra-ventures) VC firm **1** round [RTP Global](https://millionrounds.com/fund/rtp-global) VC firm **1** round [S16vc](https://millionrounds.com/fund/s16vc-founders-for-founders-fund) Angel network **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=async). ## Also claim to have backed them These 5 firms list Async 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. [Point Nine Capital](https://millionrounds.com/fund/point-nine-capital) VC firm Seed, 2021, per its site [Mosaic Ventures](https://millionrounds.com/fund/mosaic-ventures) VC firm Per its own site [SmartGateVC](https://millionrounds.com/fund/smartgatevc) VC firm Per its own site [AAL VC](https://millionrounds.com/fund/aal-vc) VC firm Per its own site [Diaspora Ventures](https://millionrounds.com/fund/diaspora-ventures) VC firm Per its own site ## Quick answers about Async ### Who invested in Async? Async's investors include Y Combinator, Correlation Ventures, Sierra Ventures, RTP Global and S16vc. ### How much has Async raised? Async has raised $14M across 2 rounds since 2024. ### When did Async last raise? Async's most recent round was a Pre-seed of $500K in Sept 2025. ### What was Async's biggest round? Async's largest round on record is $14M (Series A), in Feb 2024. ### Who backed Async first? Async's first round on record, in Feb 2024, was backed by Correlation Ventures, Sierra Ventures and RTP Global and 1 others. ### What stage is Async at? Async's latest named round is a Pre-seed, in Sept 2025. ### Where is Async based? Async is based in the United States. ## Companies like Async 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