# Catalyst OrthoScience funding: rounds and investors

> Catalyst OrthoScience has raised $28M across 2 rounds since 2019. Investors include IrishAngels and River Cities Capital Funds. Every round with its source.

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

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

# Who invested in *Catalyst OrthoScience*

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 Healthcare

Funding summary Updated 26 Oct 2026

**$28M** raised across 2 rounds since 2019, from 2 sources

**$13M** Series C **$15M** Venture

- **Latest round:** Venture, $15M Oct 2025
- **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.

2019 2020 2021 2022 2023 2024 2025

**$13M** Series C

**$15M** Venture

- **First round:** Series C, $13M
- **Biggest round:** $15M
- **Between rounds:** 6.4 years

## The rounds

- **Oct 2025** Venture **$15M** *1 new* [IrishAngels](https://millionrounds.com/fund/irishangels) Source recorded SEC filing: $4.1M sold, first sale Jul 2025
- **May 2019** Series C **$13M** *1 new* [River Cities Capital Funds](https://millionrounds.com/fund/river-cities-capital-funds) Reported by FinSMEs

## Founders and team

From Catalyst OrthoScience's own website: 6 on the team.

- **Carl O’Connell** CEO & President
- **Amy Ables** Chief Commercial Officer
- **Debbie Totah** Chief People Officer
- **Ephraim Akyuz** Chief Financial Officer
- **Robert Richter** Chief Financial Officer
- **Dale Davison** Board Of Directors

## 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 C** 2019 **Venture** 2025 [IrishAngels](https://millionrounds.com/fund/irishangels) [River Cities Capital Funds](https://millionrounds.com/fund/river-cities-capital-funds)

## Everyone who backed them

[IrishAngels](https://millionrounds.com/fund/irishangels) Angel network **1** round

[River Cities Capital Funds](https://millionrounds.com/fund/river-cities-capital-funds) Investment firm **1** round

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

## Also claim to have backed them

These 3 firms list Catalyst OrthoScience 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.

[Mutual Capital Partners](https://millionrounds.com/fund/mutual-capital-partners) VC firm Per its own site

[Tamiami Angel Funds](https://millionrounds.com/fund/tamiami-angel-funds) Angel network Per its own site

[Lateral Capital Management](https://millionrounds.com/fund/lateral-capital-ma) VC firm Per its own site

## Quick answers about Catalyst OrthoScience

### Who invested in Catalyst OrthoScience?

Catalyst OrthoScience's investors include IrishAngels and River Cities Capital Funds.

### How much has Catalyst OrthoScience raised?

Catalyst OrthoScience has raised $28M across 2 rounds since 2019.

### When did Catalyst OrthoScience last raise?

Catalyst OrthoScience's most recent round was a Venture of $15M in Oct 2025.

### What was Catalyst OrthoScience's biggest round?

Its most recent round, $15M in Oct 2025, is also its largest on record.

### Who backed Catalyst OrthoScience first?

Catalyst OrthoScience's first round on record, in May 2019, was backed by River Cities Capital Funds.

### What stage is Catalyst OrthoScience at?

Catalyst OrthoScience's latest named round is a Venture, in Oct 2025.

### Where is Catalyst OrthoScience based?

Catalyst OrthoScience is based in the United States.

## Companies like Catalyst OrthoScience

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)[**AI** $18M · Oct 2026](https://millionrounds.com/company/ai)[**Baba** $40M · Oct 2026](https://millionrounds.com/company/baba)[**IMIO** $19M · Oct 2026](https://millionrounds.com/company/imio)

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