Canada · Venture startup

Who invested in Antimatter

2 rounds we have observed, with the 2 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.

AI

Raised 6 months ago

Funding summaryUpdated 26 Oct 2026

$363Mraised across 2 rounds since 2022, from 2 sources

$12MSeries A$351MVenture
Latest round
Venture, $351MMay 2026
Step-upi
29.2×
Investors
2
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.

20222023202420252026
$12MSeries A$351MVenture
First round
Series A, $12M
Mar 2022
Biggest round
$351M
Venture · May 2026
Between rounds
4.2 years
from the last two

The rounds

  1. May 2026
    Venture$351M

    No investor was named in the report.

    Source recorded

  2. Mar 2022
    Series A$12M2 new

    Source recorded

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

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

Also claim to have backed them

These 5 firms list Antimatter 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.

CompoundVC firmPer its own site
SpacecadetVC firmPer its own site
515 VenturesVC firmPer its own site
Spark Digital CapitalFamily officePer its own site
Union LabsVC firmPer its own site

Quick answers about Antimatter

Who invested in Antimatter?

Antimatter's investors include New Enterprise Associates and General Catalyst.

How much has Antimatter raised?

Antimatter has raised $363M across 2 rounds since 2022.

When did Antimatter last raise?

Antimatter's most recent round was a Venture of $351M in May 2026.

What was Antimatter's biggest round?

Its most recent round, $351M in May 2026, is also its largest on record.

Who backed Antimatter first?

Antimatter's first round on record, in Mar 2022, was backed by New Enterprise Associates and General Catalyst.

What stage is Antimatter at?

Antimatter's latest named round is a Venture, in May 2026.

Where is Antimatter based?

Antimatter is based in Canada.

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