United States · Venture startup

Who invested in Dr. B

One round we have observed, with the 4 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.

Healthcare

Funding summaryUpdated 26 Oct 2026

$8.0Mraised across 1 round since 2022, from 1 source

Latest round
Venture, $8.0MAug 2022
Investors
4
See who backed them

The rounds

  1. Aug 2022

Founders and team

From Dr. B's own website: 1 founder, 2 on the team.

Cyrus MassoumiCEO & Founder
  • Ariel FariasHead of Technology
  • Sheila PinedaHead of Service Operations

Everyone who backed them

Founders FundVC firm1round
Lerer HippeauVC firm1round
Pareto HoldingsVC firm1round
Edward LandoAngel1round

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Quick answers about Dr. B

Who invested in Dr. B?

Dr. B's investors include Founders Fund, Lerer Hippeau, Pareto Holdings and Edward Lando.

How much has Dr. B raised?

Dr. B has raised $8.0M across 1 round since 2022.

When did Dr. B last raise?

Dr. B's most recent round was a Venture of $8.0M in Aug 2022.

What was Dr. B's biggest round?

Its most recent round, $8.0M in Aug 2022, is also its largest on record.

Who backed Dr. B first?

Dr. B's first round on record, in Aug 2022, was backed by Founders Fund, Lerer Hippeau and Pareto Holdings and 1 others.

What stage is Dr. B at?

Dr. B's latest named round is a Venture, in Aug 2022.

Where is Dr. B based?

Dr. B is based in the United States.

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