# Attune funding: rounds and investors > Attune has raised $4.3M across 4 rounds since 2014. Investors include Y Combinator, Google Ventures and Partech Ventures. Every round with its source. Source: https://millionrounds.com/company/attune (Millionrounds; every figure on the page links to its filing or article) United States · [Venture startup](https://millionrounds.com/companies) # Who invested in *Attune* 4 rounds we have observed, with the 13 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. Developer Tools Funding summary Updated 26 Oct 2026 **$4.3M** raised across 4 rounds since 2014, from 4 sources **$2.0M** Seed **$150K** Seed **$2.2M** Seed - **Latest round:** Venture Jun 2025 - **Biggest round:** $2.2M Seed · Jan 2024 - **Investors:** 13 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. 2014 2016 2018 2020 2022 2024 **$2.0M** Seed **$150K** Seed **$2.2M** Seed **?** Venture - **First round:** Seed, $2.0M - **Biggest round:** $2.2M - **Usual gap between rounds:** 4.6 years ## The rounds - **Jun 2025** Venture **Amount undisclosed** *1 new* [Y Combinator](https://millionrounds.com/fund/y-combinator) Source recorded - **Jan 2024** Seed **$2.2M** No investor was named in the report. Source recorded - **Jun 2019** Seed **$150K** *4 new* [Forum Ventures](https://millionrounds.com/fund/forum-ventures) [Blu Ventures](https://millionrounds.com/fund/blu-ventures) [Virginia Innovation Partnership Corporation](https://millionrounds.com/fund/virginia-innovation-partnership-corporation) [AAF Management Ltd.](https://millionrounds.com/fund/aaf-management-ltd) Source recorded - **Feb 2014** Seed **$2.0M** *8 new* [Google Ventures](https://millionrounds.com/fund/gv) [Partech Ventures](https://millionrounds.com/fund/partech) [Western Technology Investment](https://millionrounds.com/fund/wti) [Naval Ravikant](https://millionrounds.com/fund/naval-ravikant) [Harrison Metal](https://millionrounds.com/fund/harrison-metal) [Tekton Ventures](https://millionrounds.com/fund/tekton-ventures) [Basset Investment Group](https://millionrounds.com/fund/basset-investment-group) Sandy Cass 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** 2014 **Seed** 2019 **Seed** 2024 **Venture** 2025 [Y Combinator](https://millionrounds.com/fund/y-combinator) [Google Ventures](https://millionrounds.com/fund/gv) [Partech Ventures](https://millionrounds.com/fund/partech) [Western Technology Investment](https://millionrounds.com/fund/wti) [Forum Ventures](https://millionrounds.com/fund/forum-ventures) [Naval Ravikant](https://millionrounds.com/fund/naval-ravikant) [Harrison Metal](https://millionrounds.com/fund/harrison-metal) [Blu Ventures](https://millionrounds.com/fund/blu-ventures) [Virginia Innovation Partnership Corporation](https://millionrounds.com/fund/virginia-innovation-partnership-corporation) [Tekton Ventures](https://millionrounds.com/fund/tekton-ventures) ## Everyone who backed them [Y Combinator](https://millionrounds.com/fund/y-combinator) Accelerator **1** round [Google Ventures](https://millionrounds.com/fund/gv) Corporate VC **1** round [Partech Ventures](https://millionrounds.com/fund/partech) VC firm **1** round [Western Technology Investment](https://millionrounds.com/fund/wti) VC firm **1** round [Forum Ventures](https://millionrounds.com/fund/forum-ventures) VC firm **1** round [Naval Ravikant](https://millionrounds.com/fund/naval-ravikant) VC firm **1** round [Harrison Metal](https://millionrounds.com/fund/harrison-metal) VC firm **1** round [Blu Ventures](https://millionrounds.com/fund/blu-ventures) VC firm **1** round [Virginia Innovation Partnership Corporation](https://millionrounds.com/fund/virginia-innovation-partnership-corporation) VC firm **1** round [Tekton Ventures](https://millionrounds.com/fund/tekton-ventures) VC firm **1** round [AAF Management Ltd.](https://millionrounds.com/fund/aaf-management-ltd) VC firm **1** round [Basset Investment Group](https://millionrounds.com/fund/basset-investment-group) VC firm **1** round Sandy Cass 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=attune). ## Also claim to have backed them This firm lists Attune as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above. [Genoa Ventures](https://millionrounds.com/fund/genoa-ventures) VC firm Per its own site ## Quick answers about Attune ### Who invested in Attune? Attune's investors include Y Combinator, Google Ventures, Partech Ventures, Western Technology Investment and Forum Ventures, and 8 more on record. ### How much has Attune raised? Attune has raised $4.3M across 4 rounds since 2014. One round did not disclose an amount, so the total is a floor. ### When did Attune last raise? Attune's most recent round was a Venture in Jun 2025. ### What was Attune's biggest round? Attune's largest round on record is $2.2M (Seed), in Jan 2024. ### Who backed Attune first? Attune's first round on record, in Feb 2014, was backed by Google Ventures, Partech Ventures and Western Technology Investment and 5 others. ### What stage is Attune at? Attune's latest named round is a Venture, in Jun 2025. ### Where is Attune based? Attune is based in the United States. ## Companies like Attune In the same sector, and raised in the last eighteen months. [**Blacksmith** $131M · Oct 2026](https://millionrounds.com/company/blacksmith)[**Flapping Airplanes** $1.2B · Oct 2026](https://millionrounds.com/company/flapping-airplanes)[**Swamp Club** $7.0M · Oct 2026](https://millionrounds.com/company/swamp-club)[**Namespace** $42M · Oct 2026](https://millionrounds.com/company/namespace)[**Supabase** $950M · Oct 2026](https://millionrounds.com/company/supabase)[**Factory** $405M · Sept 2026](https://millionrounds.com/company/factory) ## Find investors like these Search every investor by what they have actually funded, then narrow to your stage and market. Free. 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