# Serial Box funding: rounds and investors > Serial Box has raised $6.2M across 2 rounds since 2018. Investors include Mattias Lundgren, Forerunner Ventures and Boat Rocker Media. Source: https://millionrounds.com/company/serial-box (Millionrounds; every figure on the page links to its filing or article) United States · [Seed startup](https://millionrounds.com/companies) # Who invested in *Serial Box* 2 rounds we have observed, with the 9 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. Internet Funding summary Updated 26 Oct 2026 **$6.2M** raised across 2 rounds since 2018, from 2 sources **$1.6M** Seed **$4.5M** Seed - **Latest round:** Seed, $4.5M Mar 2019 - **Led by:** Forerunner Ventures and Boat Rocker Media - **Step-up i:** 2.7× - **Investors:** 9 (2 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. 2019 **$1.6M** Seed **$4.5M** Seed - **First round:** Seed, $1.6M - **Biggest round:** $4.5M - **Between rounds:** 13 months ## The rounds - **Mar 2019** Seed **$4.5M** *7 new* *1 returning* [Forerunner Ventures](https://millionrounds.com/fund/forerunner-ventures) Lead Boat Rocker Media Lead [Kevin Lin](https://millionrounds.com/fund/kevin-lin) [Mattias Lundgren](https://millionrounds.com/fund/mattias-lundgren) [Todd Wagner](https://millionrounds.com/fund/todd-wagner) [Uzabase](https://millionrounds.com/fund/uzabase) Michael Edelstein Richard Sarnoff Reported by FinSMEs - **Feb 2018** Seed **$1.6M** *2 new* [Mattias Lundgren](https://millionrounds.com/fund/mattias-lundgren) Boat Rocker Media/ Richard Sarnoff Reported by FinSMEs ## 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** 2018 **Seed** 2019 [Mattias Lundgren](https://millionrounds.com/fund/mattias-lundgren) [Forerunner Ventures](https://millionrounds.com/fund/forerunner-ventures) L Boat Rocker Media L [Kevin Lin](https://millionrounds.com/fund/kevin-lin) [Todd Wagner](https://millionrounds.com/fund/todd-wagner) [Uzabase](https://millionrounds.com/fund/uzabase) Boat Rocker Media/ Richard Sarnoff Michael Edelstein Richard Sarnoff ## Everyone who backed them [Mattias Lundgren](https://millionrounds.com/fund/mattias-lundgren) Angel **2** rounds [Forerunner Ventures](https://millionrounds.com/fund/forerunner-ventures) VC firm **1** round, led 1 Boat Rocker Media no record of our own yet **1** round, led 1 [Kevin Lin](https://millionrounds.com/fund/kevin-lin) Angel **1** round [Todd Wagner](https://millionrounds.com/fund/todd-wagner) Angel **1** round [Uzabase](https://millionrounds.com/fund/uzabase) Corporate VC **1** round Boat Rocker Media/ Richard Sarnoff no record of our own yet **1** round Michael Edelstein no record of our own yet **1** round Richard Sarnoff 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=serial-box). ## Quick answers about Serial Box ### Who invested in Serial Box? Serial Box's investors include Mattias Lundgren, Forerunner Ventures, Boat Rocker Media, Kevin Lin and Todd Wagner, and 4 more on record. Forerunner Ventures led its latest round. ### How much has Serial Box raised? Serial Box has raised $6.2M across 2 rounds since 2018. ### When did Serial Box last raise? Serial Box's most recent round was a Seed of $4.5M in Mar 2019, led by Forerunner Ventures. ### What was Serial Box's biggest round? Its most recent round, $4.5M in Mar 2019, is also its largest on record. ### Who backed Serial Box first? Serial Box's first round on record, in Feb 2018, was backed by Mattias Lundgren and Boat Rocker Media/ Richard Sarnoff. ### What stage is Serial Box at? Serial Box's latest named round is a Seed, in Mar 2019. ### Where is Serial Box based? Serial Box is based in the United States. ### Who led Serial Box's rounds? Forerunner Ventures led the Seed in 2019. ## Companies like Serial Box In the same sector, and raised in the last eighteen months. [**Whop** $400M · Oct 2026](https://millionrounds.com/company/whop)[**Tolan** $30M · Oct 2026](https://millionrounds.com/company/tolan)[**Welltory** $4.0M · Oct 2026](https://millionrounds.com/company/welltory)[**Overtime** $33M · Oct 2026](https://millionrounds.com/company/overtime)[**1World Online** $25M · Sept 2026](https://millionrounds.com/company/1world-online)[**Luminary** $194M · Sept 2026](https://millionrounds.com/company/luminary) ## 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