# Highstock funding: rounds and investors > Highstock has raised $36M across 2 rounds since 2025. Investors include Greylock, Andreessen Horowitz and Abstract Ventures. Every round with its source. Source: https://millionrounds.com/company/highstock (Millionrounds; every figure on the page links to its filing or article) United States · [Series A startup](https://millionrounds.com/companies) # Who invested in *Highstock* 2 rounds we have observed, with the 7 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 B2B E-commerce Marketplaces Raised 2 months ago Follow Highstock and see its new rounds in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Fcompany%2Fhighstock) Funding summary Updated 5 Nov 2026 **$36M** raised across 2 rounds since 2025, from 2 sources **$5.5M** Seed **$30M** Series A - **Latest round:** Series A, $30M Sept 2026 - **Led by:** Andreessen Horowitz - **Step-up i:** 5.5× - **Investors:** 7 (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 **$5.5M** Seed **$30M** Series A - **First round:** Seed, $5.5M - **Biggest round:** $30M - **Between rounds:** 19 months ## The rounds - **Sept 2026** Series A **$30M** *6 new* *1 returning* [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) Lead [Greylock](https://millionrounds.com/fund/greylock-partners) [Abstract Ventures](https://millionrounds.com/fund/abstract) [Lenny Rachitsky](https://millionrounds.com/fund/lenny-rachitsky) [Max Mullen](https://millionrounds.com/fund/max-mullen) [Daybreak Ventures](https://millionrounds.com/fund/daybreak-ventures) [JJ Zhuang](https://millionrounds.com/fund/jj-zhuang) Reported by AlleyWatch - **Feb 2025** Seed **$5.5M** *1 new* [Greylock](https://millionrounds.com/fund/greylock-partners) 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** 2025 **Series A** 2026 [Greylock](https://millionrounds.com/fund/greylock-partners) [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) L [Abstract Ventures](https://millionrounds.com/fund/abstract) [Lenny Rachitsky](https://millionrounds.com/fund/lenny-rachitsky) [Max Mullen](https://millionrounds.com/fund/max-mullen) [Daybreak Ventures](https://millionrounds.com/fund/daybreak-ventures) [JJ Zhuang](https://millionrounds.com/fund/jj-zhuang) ## Everyone who backed them [Greylock](https://millionrounds.com/fund/greylock-partners) VC firm **2** rounds [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) VC firm **1** round, led 1 [Abstract Ventures](https://millionrounds.com/fund/abstract) VC firm **1** round [Lenny Rachitsky](https://millionrounds.com/fund/lenny-rachitsky) Angel **1** round [Max Mullen](https://millionrounds.com/fund/max-mullen) Angel **1** round [Daybreak Ventures](https://millionrounds.com/fund/daybreak-ventures) VC firm **1** round [JJ Zhuang](https://millionrounds.com/fund/jj-zhuang) VC firm **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=highstock). ## Quick answers about Highstock ### Who invested in Highstock? Highstock's investors include Greylock, Andreessen Horowitz, Abstract Ventures, Lenny Rachitsky and Max Mullen, and 2 more on record. Andreessen Horowitz led its latest round. ### How much has Highstock raised? Highstock has raised $36M across 2 rounds since 2025. ### When did Highstock last raise? Highstock's most recent round was a Series A of $30M in Sept 2026, led by Andreessen Horowitz. ### What was Highstock's biggest round? Its most recent round, $30M in Sept 2026, is also its largest on record. ### Who backed Highstock first? Highstock's first round on record, in Feb 2025, was backed by Greylock. ### What stage is Highstock at? Highstock's latest named round is a Series A, in Sept 2026. ### Where is Highstock based? Highstock is based in the United States. ### Who led Highstock's rounds? Andreessen Horowitz led the Series A in 2026. ## Companies like Highstock In the same sector, and raised in the last eighteen months. [**Journify** $12M · Nov 2026](https://millionrounds.com/company/journify)[**Nooks** $543M · Nov 2026](https://millionrounds.com/company/nooks)[**Laza Medical** $160M · Nov 2026](https://millionrounds.com/company/laza-medical)[**Agrani Labs** $123M · Nov 2026](https://millionrounds.com/company/agrani-labs)[**Applied Compute** $580M · Nov 2026](https://millionrounds.com/company/applied-compute)[**Guava** $13M · Nov 2026](https://millionrounds.com/company/guava) ## 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