United States · Seed startup

Who invested in ImmuneBridge

2 rounds we have observed, with the 6 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.

Biotech

Raised 8 months ago

Funding summaryUpdated 26 Oct 2026

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

$5.6MVenture$7.7MSeed
Latest round
Seed, $7.7MMar 2026
Step-upi
1.4×
Investors
6
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
$5.6MVenture$7.7MSeed
First round
Venture, $5.6M
Apr 2025
Biggest round
$7.7M
Seed · Mar 2026
Between rounds
11 months
from the last two

The rounds

  1. Mar 2026
    Seed$7.7M1 new4 returning

    Source recorded

  2. Apr 2025
    Venture$5.6M5 new

    Source recordedSEC filing: $5.6M sold, first sale Mar 2025

Founders and team

From ImmuneBridge's own website: 5 on the team.

  • James LiuChief Technology Officer
  • Alicia RomeroOperations Manager
  • Dylan MorrisBoard Member
  • Kimberly ZaiMachine Learning and Data Engineer
  • S. Alexander JacobsonBoard Member

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.

Everyone who backed them

GaingelsPrivate equity2rounds
Insight PartnersVC firm2rounds
Pioneer FundPrivate equity2rounds
Quiet CapitalVC firm2rounds
NFXVC firm1round
One Way VenturesVC firm1round

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

Also claim to have backed them

This firm lists ImmuneBridge as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.

LongGame VenturesVC firmPer its own site

Quick answers about ImmuneBridge

Who invested in ImmuneBridge?

ImmuneBridge's investors include Gaingels, Insight Partners, Pioneer Fund, Quiet Capital and NFX, and 1 more on record.

How much has ImmuneBridge raised?

ImmuneBridge has raised $13M across 2 rounds since 2025.

When did ImmuneBridge last raise?

ImmuneBridge's most recent round was a Seed of $7.7M in Mar 2026.

What was ImmuneBridge's biggest round?

Its most recent round, $7.7M in Mar 2026, is also its largest on record.

Who backed ImmuneBridge first?

ImmuneBridge's first round on record, in Apr 2025, was backed by Gaingels, Insight Partners and Pioneer Fund and 2 others.

What stage is ImmuneBridge at?

ImmuneBridge's latest named round is a Seed, in Mar 2026.

Where is ImmuneBridge based?

ImmuneBridge is based in the United States.

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