# Ostro funding: rounds and investors

> Ostro has raised across 1 round since 2025. Investors include Founders Fund, Susa Ventures and Bling Capital. Every round with its source.

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

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

# Who invested in *Ostro*

One round we have observed, with the 4 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Healthcare

Funding summary Updated 26 Oct 2026

**Undisclosed** raised across 1 round since 2025, from 1 source

- **Latest round:** Venture Apr 2025
- **Investors:** 4

See who backed them

## The rounds

- **Apr 2025** Venture **Amount undisclosed** [Founders Fund](https://millionrounds.com/fund/founders-fund) [Susa Ventures](https://millionrounds.com/fund/susa-ventures) [Bling Capital](https://millionrounds.com/fund/bling-capital) [Caffeinated Capital](https://millionrounds.com/fund/caffeinated-capital) Source recorded

## Founders and team

From Ostro's own website: 1 on the team.

- **Eliah Perez** Manager, Nurse Navigator Operations and Training

## Everyone who backed them

[Founders Fund](https://millionrounds.com/fund/founders-fund) VC firm **1** round

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

[Bling Capital](https://millionrounds.com/fund/bling-capital) VC firm **1** round

[Caffeinated Capital](https://millionrounds.com/fund/caffeinated-capital) VC firm **1** round

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

## Also claim to have backed them

These 2 firms list Ostro 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.

[Layout Ventures](https://millionrounds.com/fund/layout-ventures) VC firm Per its own site

[Kivu Ventures](https://millionrounds.com/fund/kivu-ventures) VC firm Per its own site

## Quick answers about Ostro

### Who invested in Ostro?

Ostro's investors include Founders Fund, Susa Ventures, Bling Capital and Caffeinated Capital.

### How much has Ostro raised?

Ostro has raised 1 round since 2025, none with a disclosed amount.

### When did Ostro last raise?

Ostro's most recent round was a Venture in Apr 2025.

### Who backed Ostro first?

Ostro's first round on record, in Apr 2025, was backed by Founders Fund, Susa Ventures and Bling Capital and 1 others.

### What stage is Ostro at?

Ostro's latest named round is a Venture, in Apr 2025.

### Where is Ostro based?

Ostro is based in the United States.

## Companies like Ostro

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)[**AI** $18M · Oct 2026](https://millionrounds.com/company/ai)[**Baba** $40M · Oct 2026](https://millionrounds.com/company/baba)[**Rejuvenate Bio** $13M · Oct 2026](https://millionrounds.com/company/rejuvenate-bio)[**Clinical Ink** $24M · Oct 2026](https://millionrounds.com/company/clinical-ink)

## Find investors like these

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