United States · 
Who invested in Brellium?
Brellium's investors include First Round Capital, Left Lane Capital, Menlo Ventures, Unpopular Ventures and Digital Health Venture Partners. First Round Capital led its latest round.
2026
$17MSeries A$23MSeries A
United States · Series A startup
Who invested in Brellium
2 rounds we have observed, with the 5 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.
Raised 1 month ago
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Funding summaryUpdated 5 Nov 2026
$40Mraised across 2 rounds since 2025, from 5 sources
$17MSeries A$23MSeries A
- Latest round
- Series A, $23MOct 2026
- Led by
- First Round Capital and Left Lane Capital
- Step-upi
- 1.4×
- Investors
- 5 (2 led)
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series A, $17M Apr 2025
- Biggest round
- $23M Series A · Oct 2026
- Between rounds
- 18 months from the last two
The rounds
- Oct 2026Series A$23M1 new2 returning
Reported by TechStartups and 2 others
- Apr 2025Series A$17M4 new
Reported by AlleyWatch and 1 otherSEC filing: $11M sold, first sale Nov 2024
Funding filed with regulators
Brellium filed one raise, $11M in all. Filings say how much was sold and to how many investors; they never name the investors.
- Nov 2024$11MSEC Form D
Founders and team
From Brellium's own website: 4 founders, 4 on the team.
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.
Series A2025Series A2026
First Round CapitalLL
Left Lane CapitalL
Menlo Ventures
Unpopular Ventures
Digital Health Venture Partners
First Round CapitalLLLeft Lane CapitalLMenlo VenturesUnpopular VenturesDigital Health Venture PartnersEveryone who backed them
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
This firm lists Brellium 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.
Quick answers about Brellium
How much has Brellium raised?
Brellium has raised $40M across 2 rounds since 2025.
When did Brellium last raise?
Brellium's most recent round was a Series A of $23M in Oct 2026, led by First Round Capital.
What was Brellium's biggest round?
Its most recent round, $23M in Oct 2026, is also its largest on record.
Who backed Brellium first?
Brellium's first round on record, in Apr 2025, was backed by First Round Capital, Menlo Ventures and Unpopular Ventures and 1 others.
What stage is Brellium at?
Brellium's latest named round is a Series A, in Oct 2026.
Where is Brellium based?
Brellium is based in the United States.
Who led Brellium's rounds?
First Round Capital led the Series A in 2025.
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