# QT Imaging funding: rounds and investors

> QT Imaging has raised $28M across 2 rounds since 2025. Investors include National Cancer Institute (NCI), Sio Capital Management and Lynrock Lake Master...

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

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

# Who invested in *QT Imaging*

2 rounds we have observed, with the 3 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 6 months ago

Funding summary Updated 26 Oct 2026

**$28M** raised across 2 rounds since 2025, from 3 sources

**$18M** Round **$10M** Round

- **Latest round:** Round, $10M May 2026
- **Biggest round:** $18M Round · Oct 2025
- **Investors:** 3 (1 led)

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

**$18M** Round

**$10M** Round

- **First round:** Round, $18M
- **Biggest round:** $18M
- **Between rounds:** 7 months

## The rounds

- **May 2026** Round **$10M** *1 returning* [National Cancer Institute (NCI)](https://millionrounds.com/fund/national-cancer-institute-nci) Source recorded
- **Oct 2025** Round **$18M** *3 new* [Sio Capital Management](https://millionrounds.com/fund/sio-capital-management) Lead [National Cancer Institute (NCI)](https://millionrounds.com/fund/national-cancer-institute-nci) [Lynrock Lake Master Fund LP](https://millionrounds.com/fund/lynrock-lake-master-fund-lp) Reported by Firms' own news pages and 1 other

## 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.

**Round** 2025 **Round** 2026 [National Cancer Institute (NCI)](https://millionrounds.com/fund/national-cancer-institute-nci) [Sio Capital Management](https://millionrounds.com/fund/sio-capital-management) L [Lynrock Lake Master Fund LP](https://millionrounds.com/fund/lynrock-lake-master-fund-lp)

## Everyone who backed them

[National Cancer Institute (NCI)](https://millionrounds.com/fund/national-cancer-institute-nci) Investment firm **2** rounds

[Sio Capital Management](https://millionrounds.com/fund/sio-capital-management) Investment firm **1** round, led 1

[Lynrock Lake Master Fund LP](https://millionrounds.com/fund/lynrock-lake-master-fund-lp) Investment firm **1** round

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

## Quick answers about QT Imaging

### Who invested in QT Imaging?

QT Imaging's investors include National Cancer Institute (NCI), Sio Capital Management and Lynrock Lake Master Fund LP.

### How much has QT Imaging raised?

QT Imaging has raised $28M across 2 rounds since 2025.

### When did QT Imaging last raise?

QT Imaging's most recent round was an Undisclosed round of $10M in May 2026.

### What was QT Imaging's biggest round?

QT Imaging's largest round on record is $18M (Undisclosed round), in Oct 2025, led by Sio Capital Management.

### Who backed QT Imaging first?

QT Imaging's first round on record, in Oct 2025, was backed by Sio Capital Management, National Cancer Institute (NCI) and Lynrock Lake Master Fund LP.

### What stage is QT Imaging at?

QT Imaging's latest named round is an Undisclosed round, in May 2026.

### Where is QT Imaging based?

QT Imaging is based in the United States.

### Who led QT Imaging's rounds?

Sio Capital Management led the Undisclosed round in 2025.

## Companies like QT Imaging

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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