Funding news
PsiQuantum logo

PsiQuantum Raises $2.4B Series C Round

Recently funded · $2.4B Series cTechnology, Information and MediaUSView source

Get the full PsiQuantum company profile

Access contacts, investors, buying signals & more

Open in Dashboard

The race to build a practical quantum computer just got a significant financial boost, with PsiQuantum announcing it has raised $2.4B in a Series C funding round. The company is singularly focused on constructing the world's first useful quantum computer, a monumental task requiring at least 1,000,000 qubits and robust error correction.

PsiQuantum believes photonics is the only viable path to achieve this complex technological feat. Its interdisciplinary team, comprising quantum physicists, semiconductor, systems, and software engineers, is dedicated to solving real-world problems by making error correction central to its development process.

From the source

Karl · May 16, 2026

Shipped v4.4 of belleau.io today. The platform has changed substantially since v1 five days ago.v1 was a database. 17,553 DoD prime contract awards scored on AI readiness, 718 emerging defense tech companies, MIT licensed.v4.4 is a research product.

Here's what's new:> 1,174 companies, every one scored across 12 capability domains (not just AI). Hypersonics, counter-UAS, maritime autonomy, hardware manufacturing, quantum, the full DoD investment landscape.> Panel grading. 7 raters per capability, drop-high and drop-low Olympic style, confidence interval reported on every score.200 long-form investment memos for flagship companies. 1,500 to 2,

Unlock the full source

CEO quotes, investor details and growth metrics

Start free trial

Other United States companies recently funded

View all

Biggest recent Science rounds

Largest funding rounds in Science on Signalbase right now.

#CompanyAmount
1
X, The Moonshot Factory logo

X, The Moonshot Factory

United States

$6.0B
2
IonQ logo

IonQ

United States

$3.5B
3
Agilent Technologies logo

Agilent Technologies

United States

$2.1B
4
Oxford Ionics logo

Oxford Ionics

United Kingdom

$1.1B
5
BioRender logo

BioRender

Canada

$1.0B

Other recent Series c rounds

Companies that recently closed a Series c round.

#CompanyAmount
1
Butterfly Medical logo

Butterfly Medical

Israel

$21.0M
2
Yabie logo

Yabie

Sweden

$26.2M
3
Trevi Therapeutics, Inc. logo

Trevi Therapeutics, Inc.

United States

$50.5M
4
Freyja Healthcare logo

Freyja Healthcare

$20.5M
5
NuCurrent logo

NuCurrent

United States

$100.0K