# S4 Medical funding: rounds and investors

> S4 Medical has raised $5.0M across 1 round since 2023. Investors include Plug and Play. Every round with its source.

Source: https://millionrounds.com/company/s4-medical (Millionrounds; every figure on the page links to its filing or article)

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

# Who invested in *S4 Medical*

One round we have observed, with the one investor 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

**$5.0M** raised across 1 round since 2023, from 1 source

- **Latest round:** Series B, $5.0M Jul 2023
- **Investors:** 1

See who backed them

## The rounds

- **Jul 2023** Series B **$5.0M** [Plug and Play](https://millionrounds.com/fund/plug-and-play) Source recorded SEC filing: $5.8M sold, first sale Jun 2023

## Founders and team

From S4 Medical's own website and the SEC filings it signed: 4 on the team.

- **Mark Kraus** VP of Operations
- **Ron Farnham** VP of Business Develoment
- **Emile Daoud** Executive Officer, Director i
- **William Fuller** Executive Officer, Director i

On the board, as filed i *Anila Lingamneni* *Bill Baumel* *Roy Tanaka*

## Everyone who backed them

[Plug and Play](https://millionrounds.com/fund/plug-and-play) Accelerator **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=s4-medical).

## Also claim to have backed them

This firm lists S4 Medical 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.

[Angel Physicians Fund](https://millionrounds.com/fund/angel-physicians-fund) Private equity Per its own site

## Quick answers about S4 Medical

### Who invested in S4 Medical?

S4 Medical's investors include Plug and Play.

### How much has S4 Medical raised?

S4 Medical has raised $5.0M across 1 round since 2023.

### When did S4 Medical last raise?

S4 Medical's most recent round was a Series B of $5.0M in Jul 2023.

### What was S4 Medical's biggest round?

Its most recent round, $5.0M in Jul 2023, is also its largest on record.

### Who backed S4 Medical first?

S4 Medical's first round on record, in Jul 2023, was backed by Plug and Play.

### What stage is S4 Medical at?

S4 Medical's latest named round is a Series B, in Jul 2023.

### Where is S4 Medical based?

S4 Medical is based in the United States.

## Companies like S4 Medical

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

Search every investor by what they have actually funded, then narrow to your stage and market. Free.

Open the investor searchOr these rounds in the app