# Bolster funding: rounds and investors > Bolster has raised $17M across 4 rounds since 2012. Investors include Union Square Ventures, Costanoa Ventures and Y Combinator. Every round with its source. Source: https://millionrounds.com/company/bolster (Millionrounds; every figure on the page links to its filing or article) United States · [Venture startup](https://millionrounds.com/companies) # Who invested in *Bolster* 4 rounds we have observed, with the 10 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. Future of Work HR Tech Marketplaces Funding summary Updated 26 Oct 2026 **$17M** raised across 4 rounds since 2012, from 4 sources **$750K** Seed **$8.4M** Seed **$8.2M** Venture - **Latest round:** Venture, $8.2M Jul 2024 - **Biggest round:** $8.4M Seed · Oct 2021 - **Investors:** 10 (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. 2012 2014 2016 2018 2020 2022 2024 **$750K** Seed **$8.4M** Seed **?** Seed **$8.2M** Venture - **First round:** Seed, $750K - **Biggest round:** $8.4M - **Usual gap between rounds:** 20 months ## The rounds - **Jul 2024** Venture **$8.2M** *3 new* *2 returning* [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) [Union Square Ventures](https://millionrounds.com/fund/union-square-ventures) [Foundry Group](https://millionrounds.com/fund/foundry) [Capital Factory](https://millionrounds.com/fund/capital-factory) [Costanoa Ventures](https://millionrounds.com/fund/costanoa-ventures) Source recorded - **Nov 2022** Seed **Amount undisclosed** *2 new* [Union Square Ventures](https://millionrounds.com/fund/union-square-ventures) Lead [Costanoa Ventures](https://millionrounds.com/fund/costanoa-ventures) Reported by Foundry Group - **Oct 2021** Seed **$8.4M** *4 new* [Y Combinator](https://millionrounds.com/fund/y-combinator) [Soma Capital](https://millionrounds.com/fund/soma-capital) [FUSE](https://millionrounds.com/fund/fuse) [I2BF Global Ventures](https://millionrounds.com/fund/i2bf-global-ventures) Source recorded - **Jan 2012** Seed **$750K** *1 new* AGB Holdings From a historical funding record ## 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** 2012 **Seed** 2021 **Seed** 2022 **Venture** 2024 [Union Square Ventures](https://millionrounds.com/fund/union-square-ventures) L [Costanoa Ventures](https://millionrounds.com/fund/costanoa-ventures) [Y Combinator](https://millionrounds.com/fund/y-combinator) [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) [Soma Capital](https://millionrounds.com/fund/soma-capital) [Foundry Group](https://millionrounds.com/fund/foundry) [Capital Factory](https://millionrounds.com/fund/capital-factory) [FUSE](https://millionrounds.com/fund/fuse) [I2BF Global Ventures](https://millionrounds.com/fund/i2bf-global-ventures) AGB Holdings ## Everyone who backed them [Union Square Ventures](https://millionrounds.com/fund/union-square-ventures) VC firm **2** rounds, led 1 [Costanoa Ventures](https://millionrounds.com/fund/costanoa-ventures) VC firm **2** rounds [Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **1** round [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) VC firm **1** round [Soma Capital](https://millionrounds.com/fund/soma-capital) VC firm **1** round [Foundry Group](https://millionrounds.com/fund/foundry) VC firm **1** round [Capital Factory](https://millionrounds.com/fund/capital-factory) VC firm **1** round [FUSE](https://millionrounds.com/fund/fuse) VC firm **1** round [I2BF Global Ventures](https://millionrounds.com/fund/i2bf-global-ventures) VC firm **1** round AGB Holdings 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=bolster). ## Quick answers about Bolster ### Who invested in Bolster? Bolster's investors include Union Square Ventures, Costanoa Ventures, Y Combinator, Alumni Ventures and Soma Capital, and 5 more on record. ### How much has Bolster raised? Bolster has raised $17M across 4 rounds since 2012. One round did not disclose an amount, so the total is a floor. ### When did Bolster last raise? Bolster's most recent round was a Venture of $8.2M in Jul 2024. ### What was Bolster's biggest round? Bolster's largest round on record is $8.4M (Seed), in Oct 2021. ### Who backed Bolster first? Bolster's first round on record, in Jan 2012, was backed by AGB Holdings. ### What stage is Bolster at? Bolster's latest named round is a Venture, in Jul 2024. ### Where is Bolster based? Bolster is based in the United States. ### Who led Bolster's rounds? Union Square Ventures led the Seed in 2022. ## Companies like Bolster In the same sector, and raised in the last eighteen months. [**Whop** $400M · Oct 2026](https://millionrounds.com/company/whop)[**VIVA Finance** $370M · Oct 2026](https://millionrounds.com/company/viva-finance)[**VECKTA** $11M · Oct 2026](https://millionrounds.com/company/veckta)[**Truck Parking Club** Oct 2026](https://millionrounds.com/company/truck-parking-club)[**Origin** $121M · Oct 2026](https://millionrounds.com/company/origin)[**Sharp Performance** $30M · Oct 2026](https://millionrounds.com/company/sharp-performance) ## 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