# Brellium funding: rounds and investors

> Brellium has raised $40M across 2 rounds since 2025. Investors include First Round Capital, Left Lane Capital and Menlo Ventures. Every round with its source.

Source: https://millionrounds.com/company/brellium (Millionrounds; every figure on the page links to its filing or article)

United States · [Series A startup](https://millionrounds.com/companies)

# 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.

AI Healthcare Healthtech Regtech

Raised 1 month ago

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Funding summary Updated 5 Nov 2026

**$40M** raised across 2 rounds since 2025, from 5 sources

**$17M** Series A **$23M** Series A

- **Latest round:** Series A, $23M Oct 2026
- **Led by:** First Round Capital and Left Lane Capital
- **Step-up i:** 1.4×
- **Investors:** 5 (2 led)

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

**$17M** Series A

**$23M** Series A

- **First round:** Series A, $17M
- **Biggest round:** $23M
- **Between rounds:** 18 months

## The rounds

- **Oct 2026** Series A **$23M** *1 new* *2 returning* [First Round Capital](https://millionrounds.com/fund/first-round-capital) Lead [Left Lane Capital](https://millionrounds.com/fund/left-lane-capital) Lead [Digital Health Venture Partners](https://millionrounds.com/fund/digital-health-venture-partners) Reported by TechStartups and 2 others
- **Apr 2025** Series A **$17M** *4 new* [First Round Capital](https://millionrounds.com/fund/first-round-capital) Lead [Menlo Ventures](https://millionrounds.com/fund/menlo-ventures) [Unpopular Ventures](https://millionrounds.com/fund/unpopular-ventures) [Left Lane Capital](https://millionrounds.com/fund/left-lane-capital) Reported by AlleyWatch and 1 other SEC 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 **$11M** 55 investors of $13M offered SEC Form D

## Founders and team

From Brellium's own website: 4 founders, 4 on the team.

**Zach Rosen** Co-Founder, CEO

**Henry Kasa** Co-Founder, COO

**Max Katzman** Co-Founder, Head of Engineering

**Alex Le-Tu** Co-founder

- **Junaid Warwani** VP of Engineering
- **Karina McDonough** VP of Customer Success
- **Laurel Handler-Vosen** Head of People
- **Sid Jain** VP of Finance

## 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 A** 2025 **Series A** 2026 [First Round Capital](https://millionrounds.com/fund/first-round-capital) L L [Left Lane Capital](https://millionrounds.com/fund/left-lane-capital) L [Menlo Ventures](https://millionrounds.com/fund/menlo-ventures) [Unpopular Ventures](https://millionrounds.com/fund/unpopular-ventures) [Digital Health Venture Partners](https://millionrounds.com/fund/digital-health-venture-partners)

## Everyone who backed them

[First Round Capital](https://millionrounds.com/fund/first-round-capital) VC firm **2** rounds, led 2

[Left Lane Capital](https://millionrounds.com/fund/left-lane-capital) VC firm **2** rounds, led 1

[Menlo Ventures](https://millionrounds.com/fund/menlo-ventures) VC firm **1** round

[Unpopular Ventures](https://millionrounds.com/fund/unpopular-ventures) VC firm **1** round

[Digital Health Venture Partners](https://millionrounds.com/fund/digital-health-venture-partners) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=brellium).

## 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.

[Figure 8 Investments](https://millionrounds.com/fund/figure-8-investments) Family office Seed, per its site

## Quick answers about Brellium

### 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.

### 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.

## Companies like Brellium

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

[**Nooks** $543M · Nov 2026](https://millionrounds.com/company/nooks)[**Laza Medical** $160M · Nov 2026](https://millionrounds.com/company/laza-medical)[**Journify** $12M · Nov 2026](https://millionrounds.com/company/journify)[**Guava** $13M · Nov 2026](https://millionrounds.com/company/guava)[**Agrani Labs** $123M · Nov 2026](https://millionrounds.com/company/agrani-labs)[**Applied Compute** $580M · Nov 2026](https://millionrounds.com/company/applied-compute)

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