United States · Series C startup

Who invested in R-Zero

One round we have observed, with the 6 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.

Energy

Funding summaryUpdated 26 Oct 2026

$105Mraised across 1 round since 2023, from 1 source

Latest round
Series C, $105MFeb 2023
Investors
6
See who backed them

The rounds

  1. Feb 2023

Everyone who backed them

SOSVVC firm1round
Upfront VenturesVC firm1round
Qualcomm VenturesCorporate VC1round
Mayo ClinicInvestment firm1round
La CaisseInvestment firm1round

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

Also claim to have backed them

These 2 firms list R-Zero 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.

Civilization VenturesVC firmPer its own site
Leadout CapitalVC firmPer its own site

Quick answers about R-Zero

Who invested in R-Zero?

R-Zero's investors include SOSV, Upfront Ventures, Qualcomm Ventures, Mayo Clinic and World Innovation Lab Wil, and 1 more on record.

How much has R-Zero raised?

R-Zero has raised $105M across 1 round since 2023.

When did R-Zero last raise?

R-Zero's most recent round was a Series C of $105M in Feb 2023.

What was R-Zero's biggest round?

Its most recent round, $105M in Feb 2023, is also its largest on record.

Who backed R-Zero first?

R-Zero's first round on record, in Feb 2023, was backed by SOSV, Upfront Ventures and Qualcomm Ventures and 3 others.

What stage is R-Zero at?

R-Zero's latest named round is a Series C, in Feb 2023.

Where is R-Zero based?

R-Zero is based in the United States.

Companies like R-Zero

In the same sector, and raised in the last eighteen months.

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