# Klaviyo funding: rounds and investors > Klaviyo has raised $347M across 3 rounds since 2015. Investors include Summit Partners, Accomplice and Sands Capital Ventures. Every round with its source. Source: https://millionrounds.com/company/klaviyo (Millionrounds; every figure on the page links to its filing or article) United States · [Funded startup](https://millionrounds.com/companies) # Who invested in *Klaviyo* 3 rounds we have observed, with the 6 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. Advertising & Adtech Martech Valuation: $9.0B, Apr 2022 Funding summary Updated 26 Oct 2026 **$347M** raised across 3 rounds since 2015, from 3 sources **$1.5M** Seed **$150M** Round **$195M** Secondary - **Latest round:** Secondary, $195M Aug 2025 - **Step-up i:** 1.3× - **Investors:** 6 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. 2015 2017 2019 2021 2023 2025 **$1.5M** Seed **$150M** Round **$195M** Secondary - **First round:** Seed, $1.5M - **Biggest round:** $195M - **Usual gap between rounds:** 6.3 years ## The rounds - **Aug 2025** Secondary **$195M** *2 new* *1 returning* [Summit Partners](https://millionrounds.com/fund/summit-partners) [Sands Capital Ventures](https://millionrounds.com/fund/sands-capital-ventures) [Blue Owl](https://millionrounds.com/fund/blue-owl) Source recorded - **Apr 2019** Round **$150M** *1 new* [Summit Partners](https://millionrounds.com/fund/summit-partners) Reported by FinSMEs - **Aug 2015** Seed **$1.5M** *3 new* [Accomplice](https://millionrounds.com/fund/accomplice) [David Cancel](https://millionrounds.com/fund/david-cancel) [TJ Mahony](https://millionrounds.com/fund/tj-mahony) From a historical funding record ## Founders and team From the SEC filings it signed: 4 on the team. - **Amanda Whalen** Executive Officer i - **Andrew Bialecki** Executive Officer, Director i - **Edward Hallen** Executive Officer, Director i - **Landon Edmond** Executive Officer i On the board, as filed i *Jennifer Ceren* *Michael Medici* *Ping Li* *Tony Weisman* ## 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** 2015 **Round** 2019 **Secondary** 2025 [Summit Partners](https://millionrounds.com/fund/summit-partners) [Accomplice](https://millionrounds.com/fund/accomplice) [Sands Capital Ventures](https://millionrounds.com/fund/sands-capital-ventures) [Blue Owl](https://millionrounds.com/fund/blue-owl) [David Cancel](https://millionrounds.com/fund/david-cancel) [TJ Mahony](https://millionrounds.com/fund/tj-mahony) ## Everyone who backed them [Summit Partners](https://millionrounds.com/fund/summit-partners) Private equity **2** rounds [Accomplice](https://millionrounds.com/fund/accomplice) VC firm **1** round [Sands Capital Ventures](https://millionrounds.com/fund/sands-capital-ventures) Private equity **1** round [Blue Owl](https://millionrounds.com/fund/blue-owl) Asset manager **1** round [David Cancel](https://millionrounds.com/fund/david-cancel) Angel **1** round [TJ Mahony](https://millionrounds.com/fund/tj-mahony) Angel **1** round Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=klaviyo). ## Also claim to have backed them These 8 firms list Klaviyo 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. [Glynn Capital Management](https://millionrounds.com/fund/glynn-capital) VC firm Per its own site [Cross Creek](https://millionrounds.com/fund/cross-creek) VC firm Per its own site [Harmony Partners](https://millionrounds.com/fund/harmony-partners) VC firm Per its own site [HighSage Ventures](https://millionrounds.com/fund/highsage-ventures) VC firm Per its own site [Irregular Expressions](https://millionrounds.com/fund/irregular-expressions) Angel network Per its own site [Spearhead](https://millionrounds.com/fund/spearhead-2) VC firm Per its own site [Conduit](https://millionrounds.com/fund/conduit) Accelerator Per its own site [W Ventures GmbH](https://millionrounds.com/fund/w-ventures-2) VC firm Per its own site ## Quick answers about Klaviyo ### Who invested in Klaviyo? Klaviyo's investors include Summit Partners, Accomplice, Sands Capital Ventures, Blue Owl and David Cancel, and 1 more on record. ### How much has Klaviyo raised? Klaviyo has raised $347M across 3 rounds since 2015. ### When did Klaviyo last raise? Klaviyo's most recent round was a Secondary of $195M in Aug 2025. ### What was Klaviyo's biggest round? Its most recent round, $195M in Aug 2025, is also its largest on record. ### Who backed Klaviyo first? Klaviyo's first round on record, in Aug 2015, was backed by Accomplice, David Cancel and TJ Mahony. ### What stage is Klaviyo at? Klaviyo's latest named round is a Secondary, in Aug 2025. ### Where is Klaviyo based? Klaviyo is based in the United States. ## Companies like Klaviyo In the same sector, and raised in the last eighteen months. [**Kevel** $75M · Oct 2026](https://millionrounds.com/company/kevel)[**Whop** $400M · Oct 2026](https://millionrounds.com/company/whop)[**Different** $48M · Oct 2026](https://millionrounds.com/company/different)[**Gradient** $24M · Oct 2026](https://millionrounds.com/company/gradient)[**OuterSignal** $22M · Sept 2026](https://millionrounds.com/company/outersignal)[**Pipedrive** $90M · Sept 2026](https://millionrounds.com/company/pipedrive) ## 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