Who invested in Mastra

2 rounds we have observed, with the 5 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.

Raised 7 months ago

Funding summaryUpdated 26 Oct 2026

$13Mraised across 2 rounds since 2025, from 2 sources

Latest round: VentureApr 2026
Biggest round: $13MPre-seed · Mar 2025
Investors: 5

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.

2026

$13MPre-seed?Venture

First round: Pre-seed, $13M
Biggest round: $13M
Between rounds: 13 months

The rounds

Apr 2026
VentureAmount undisclosed3 new2 returning
Source recorded
Mar 2025
Pre-seed$13M2 new
- Y Combinator
- Pioneer Fund
Also list them on their own sitePicks and Shovels
Source recorded

Founders and team

From Mastra's own website: 3 founders, 20 on the team.

Sam BhagwatFounder & CEO

Abhi AiyerCo-founder & CTO

Shane ThomasCo-founder & Chief Product Officer

Joshua SchlissermanChief of Staff
Aron SchuhmannHead of Demand Generation
Joel SmithHead of Platform
Caleb BarnesSenior Software Engineer
Damien SchneiderDesign Engineer
Daniel LewSenior Software Engineer
Devanshu SharmaIntern
Ehindero IsraelProduct Engineer
Francis LabiCustomer Engineer
Grayson HicksCustomer Engineer
Lennart JörgensSenior Software Engineer
Leo OrelIntern
Marvin FrachetSenior Software Engineer
Max KatzDesign Engineer
Ose DaniaStaff Backend Engineer
Patrycja Jenkner-SarProduct Marketer & Content Engineer
Romain RouartCustomer Engineer
Ryan HansenPrincipal Software Engineer

And 2 more on the team.

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.

Pre-seed2025Venture2026

Everyone who backed them

Y CombinatorAccelerator2rounds

Pioneer FundPrivate equity2rounds

SV AngelVC firm1round

Liquid 2 VenturesVC firm1round

Spark CapitalVC firm1round

Missing a round, or an investor who was in one? Tell us.

Also claim to have backed them

These 6 firms list Mastra 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.