# AltrixBio funding: rounds and investors

> AltrixBio has raised $6.2M across 2 rounds since 2025. Investors include Flybridge and Taihill Venture. Every round with its source.

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

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

# Who invested in *AltrixBio*

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.

Biotech

Funding summary Updated 26 Oct 2026

**$6.2M** raised across 2 rounds since 2025, from 2 sources

**$1.2M** Venture **$5.0M** Series A

- **Latest round:** Series A, $5.0M Sept 2025
- **Step-up i:** 4.2×
- **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.

2026

**$1.2M** Venture

**$5.0M** Series A

- **First round:** Venture, $1.2M
- **Biggest round:** $5.0M
- **Between rounds:** 4 months

## The rounds

- **Sept 2025** Series A **$5.0M** *2 returning* [Flybridge](https://millionrounds.com/fund/flybridge) [Taihill Venture](https://millionrounds.com/fund/taihill-venture) Source recorded SEC filing: $1.2M sold, first sale Apr 2025
- **May 2025** Venture **$1.2M** *2 new* [Flybridge](https://millionrounds.com/fund/flybridge) [Taihill Venture](https://millionrounds.com/fund/taihill-venture) Source recorded SEC filing: $6.6M sold, first sale Mar 2019

## 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.

**Venture** 2025 **Series A** 2025 [Flybridge](https://millionrounds.com/fund/flybridge) [Taihill Venture](https://millionrounds.com/fund/taihill-venture)

## Everyone who backed them

[Flybridge](https://millionrounds.com/fund/flybridge) VC firm **2** rounds

[Taihill Venture](https://millionrounds.com/fund/taihill-venture) VC firm **2** rounds

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

## Also claim to have backed them

This firm lists AltrixBio 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.

[StageNext Fund](https://millionrounds.com/fund/stagenext-fund) VC firm Per its own site

## Quick answers about AltrixBio

### Who invested in AltrixBio?

AltrixBio's investors include Flybridge and Taihill Venture.

### How much has AltrixBio raised?

AltrixBio has raised $6.2M across 2 rounds since 2025.

### When did AltrixBio last raise?

AltrixBio's most recent round was a Series A of $5.0M in Sept 2025.

### What was AltrixBio's biggest round?

Its most recent round, $5.0M in Sept 2025, is also its largest on record.

### Who backed AltrixBio first?

AltrixBio's first round on record, in May 2025, was backed by Flybridge and Taihill Venture.

### What stage is AltrixBio at?

AltrixBio's latest named round is a Series A, in Sept 2025.

### Where is AltrixBio based?

AltrixBio is based in the United States.

## Companies like AltrixBio

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

[**Star Therapeutics** $325M · Oct 2026](https://millionrounds.com/company/star-therapeutics)[**Promaxo** $106M · Oct 2026](https://millionrounds.com/company/promaxo)[**Prolific Machines** $105M · Oct 2026](https://millionrounds.com/company/prolific-machines)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio)[**Clinical Ink** $24M · Oct 2026](https://millionrounds.com/company/clinical-ink)[**Rejuvenate Bio** $13M · Oct 2026](https://millionrounds.com/company/rejuvenate-bio)

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