Who invested in ZBiotics

One round we have observed, with the 3 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Biotech

Y Combinator: W18

Funding summaryUpdated 26 Oct 2026

Undisclosedraised across 1 round since 2025, from 1 source

Latest round: VentureMar 2025
Investors: 3

See who backed them

The rounds

Mar 2025
VentureAmount undisclosed
Source recorded

Founders and team

From ZBiotics's own website and the SEC filings it signed: 1 founder, 18 on the team.

Stephen Donald LambCOO, Co-founderNamed on its 2024 Form D

Kat TownsendChief of Marketing
Louise QiChief of Staff
Michael MullaneyVP of Supply Chain
Alicia TabugCustomer Care and Community Manager
Allie HoersterBrand Marketing Manager
Anna LambSenior Manager, Growth Marketing and Innovation
Jaime NewsomeEcommerce Customer Experience Manager
Katia TamerDirector of Brand and Product Marketing
Laura SawvellProcurement Manager
Max Velasco KnottSenior Retail Program Manager
Melissa HinesSenior Director of People Operations
Michael RichardsonCreative Director
Nasreen HoseinGrowth Marketing Manager
Nicole ShahinSenior Manager of Customer Experience
Savannah HagenbaughSenior Director of Quality
Somya MathurSenior Data & Analytics Manager
Todd JonesSenior Director of Omnichannel Strategy
Zachary Donald AbbottExecutive Officer, Directori

On the board, as filediAdam Donald Ramada

Everyone who backed them

Y CombinatorAccelerator1round

FJ LabsVC firm1round

Social CapitalVC firm1round

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

Also claim to have backed them

These 10 firms list ZBiotics 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.