# MediStream funding: rounds and investors

> MediStream has raised $19M across 2 rounds since 2014. Investors include Altos Ventures, KB Investment and Korea Development Bank. Every round with its source.

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

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

# Who invested in *MediStream*

2 rounds we have observed, with the 4 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.

Healthcare

Raised 11 months ago

Funding summary Updated 26 Oct 2026

**$19M** raised across 2 rounds since 2014, from 2 sources

- **Latest round:** Venture, $19M Dec 2025
- **Investors:** 4

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.

2016 2018 2020 2022 2024

**?** Venture

**$19M** Venture

- **First round:** Venture
- **Biggest round:** $19M
- **Between rounds:** 11 years

## The rounds

- **Dec 2025** Venture **$19M** *4 new* [Altos Ventures](https://millionrounds.com/fund/altos-ventures) [KB Investment](https://millionrounds.com/fund/kb-investment) [Korea Development Bank](https://millionrounds.com/fund/korea-development-bank) [Smilegate Investment](https://millionrounds.com/fund/smilegate-investment) Source recorded
- **Dec 2014** Venture **Amount undisclosed** No investor was named in the report. From a historical funding record

## 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** 2014 **Venture** 2025 [Altos Ventures](https://millionrounds.com/fund/altos-ventures) [KB Investment](https://millionrounds.com/fund/kb-investment) [Korea Development Bank](https://millionrounds.com/fund/korea-development-bank) [Smilegate Investment](https://millionrounds.com/fund/smilegate-investment)

## The exit

Exit Buyer Price When

Acquired [ArchiMed](https://millionrounds.com/fund/archimed-2) undisclosed Sept 2014

From historical deal records. Wrong? [Tell us](https://millionrounds.com/corrections?slug=medistream).

## Everyone who backed them

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

[KB Investment](https://millionrounds.com/fund/kb-investment) VC firm **1** round

[Korea Development Bank](https://millionrounds.com/fund/korea-development-bank) Government **1** round

[Smilegate Investment](https://millionrounds.com/fund/smilegate-investment) Growth equity **1** round

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

## Quick answers about MediStream

### Who invested in MediStream?

MediStream's investors include Altos Ventures, KB Investment, Korea Development Bank and Smilegate Investment.

### How much has MediStream raised?

MediStream has raised $19M across 2 rounds since 2014. One round did not disclose an amount, so the total is a floor.

### When did MediStream last raise?

MediStream's most recent round was a Venture of $19M in Dec 2025.

### What was MediStream's biggest round?

Its most recent round, $19M in Dec 2025, is also its largest on record.

### Who backed MediStream first?

MediStream's first round on record, in Dec 2025, was backed by Altos Ventures, KB Investment and Korea Development Bank and 1 others.

### What stage is MediStream at?

MediStream's latest named round is a Venture, in Dec 2025.

### Where is MediStream based?

MediStream is based in the United States.

## Companies like MediStream

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)

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