When was PsiQuantum founded?

PsiQuantum was founded in 2015 and became a unicorn in 2021, reaching the milestone in 6 years. It raised its 1st funding round 4 years after its incorporation.

Where is PsiQuantum located?

PsiQuantum is headquartered in Palo Alto, United States. It is registered at Palo Alto, California.

Who is the current CEO of PsiQuantum?

Jeremy O Brien of PsiQuantum. They have also founded 1 company.

How many employees does PsiQuantum have?

As of May 31, 2026, the latest employee count at PsiQuantum is 636.

Is PsiQuantum a funded company?

PsiQuantum is a funded company, having raised a total of $2.32B across 8 funding rounds to date. The company's 1st funding round was a $230M Series C round, raised on Nov 17, 2019.

How much is PsiQuantum worth?

The latest valuation of PsiQuantum is $7B as of Sep 10, 2025.

When was the latest funding round of PsiQuantum?

PsiQuantum's latest funding was a $1B Series E round on Sep 10, 2025, with participation from 15 investors. Its primary sector is Photonics. In United States, the Photonics sector has seen $5.02B in funding in 2026 to date.

Is PsiQuantum a Photonics company?

The primary sectors of PsiQuantum are Photonics and Quantum Computing.

Where does PsiQuantum rank among its competitors?

PsiQuantum ranks 1st amongst 23 active competitors, of which 13 are funded. It stands 1st in terms of total funding among its competitors. The most recent competitor to raise funding was Atom Computing, which secured $100M in Jun, 2026.

Who are the top competitors of PsiQuantum?

PsiQuantum's top competitors include Atom Computing, Quandela and ORCA. Among them, Atom Computing secured the most recent funding round in June, 2026.

PsiQuantum - 2026 Company Profile, Team, Funding & Competitors

PsiQuantum is a series E company based in Palo Alto (United States), founded in 2015 by Terry Rudolph, Pete Shadbolt, Mark Thompson and Jeremy O Brien. It operates as a Developer of photon-based universal quantum computers. PsiQuantum has raised $2.32B in funding from investors like BlackRock, Queensland Government and M12, with a current valuation of $7B. The company has 23 active competitors, including 13 funded and 2 that have exited. Its top competitors include companies like Atom Computing, Quandela and ORCA.

Sectors and market segments that PsiQuantum operate in

PsiQuantum serves in the Semiconductors, High Tech market segments.The primary business model of PsiQuantum are:

Company Details

Developer of photon-based universal quantum computers. It uses photonic technology to develop error-corrected general-purpose quantum computers. It has applications in drug discovery, personalized medicine, artificial intelligence, and materials sciences.

Website: www.psiquantum.com/
Social
Registered Address: Palo Alto, California

Key Metrics

Founded Year

2015

Location

Palo Alto, United States

Stage

Series E

Total Funding

$2.32B in 8 rounds

Latest Funding Round

Series E, Sep 10, 2025, $1B

Post Money Valuation

$7B as on Sep 10, 2025

Investors

BlackRock & 40 more

Ranked

1^st among 23 active competitors

Employee Count

636 as on May 31, 2026

Investment & Acquisitions

Iceberg Quantum

Similar Companies

Atom Computing & 22 more

View PsiQuantum's full profile

PsiQuantum is associated with 1 legal entity given below:

Legal Entity Name	Date of Incorporation	Revenue	Latest Employee Count	Documents
Psiquantum Corp CIN: 811715139 , United States, Active	Dec 31, 1999	-	320 (As on Dec 31, 2024)	-

PsiQuantum has raised a total funding of $2.32B over 8 rounds. Its first funding round was on Nov 17, 2019. Its latest funding round was a Series E round on Sep 10, 2025 for $1B. 15 investors participated in its latest round. PsiQuantum has 41 institutional investors.

Here is the list of recent funding rounds of PsiQuantum:

Filter this list

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Sep 10, 2025	$1B	Series E	$7B	-	BlackRock	Temasek, Baillie Gifford, Macquarie, Ribbit Capital, NVentures, Adage Capital Management, Qatar Investment Authority, Type One Ventures, Morgan Stanley, 1789 Capital, SentinelOne, Blackbird Ventures, Third Point Ventures, T. Rowe Price
May 15, 2025	$22M	Series E	$6B	-	-	-
Apr 29, 2024	Undisclosed	Grant (prize money)	-	-	-	Queensland Government, QTC

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View details of PsiQuantum's funding rounds and investors

The founders of PsiQuantum are Terry Rudolph, Pete Shadbolt, Mark Thompson and Jeremy O Brien. Jeremy O Brien is the CEO of PsiQuantum.

Here are the details of PsiQuantum's key team members:

Terry Rudolph: Co-Founder of PsiQuantum.
Contact Info: 1 email address
Pete Shadbolt: Co-Founder of PsiQuantum.
Contact Info: 1 email address
Mark Thompson: Co-Founder & CTO of PsiQuantum.
Contact Info: 1 email address
Jeremy O Brien: Co-Founder & CEO of PsiQuantum.
Contact Info: 1 email address

View details of PsiQuantum's Founder profiles and Board Members

PsiQuantum's employee count trend

PsiQuantum has 636 employees as of May 26. Here is PsiQuantum's employee count trend over the years:

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Top competitors of PsiQuantum include Atom Computing, Quandela and ORCA. Here is the list of Top 10 competitors of PsiQuantum, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	PsiQuantum 2015, Palo Alto (United States), Series E	Developer of photon-based universal quantum computers	$2.32B	T. Rowe Price, Baillie Gifford & 39 others	72/100
2nd	Atom Computing 2018, Berkeley (United States), Series C	Developer of quantum computers using arrays of optically-trapped neutral atoms	$201M	Third Point Ventures, Venrock & 26 others	64/100
3rd	Quandela 2017, Massy (France), Series B	Developer of quantum computing hardware, software, cloud access, and related services	$70.8M	Serena, Crédit Mutuel Innovation & 8 others	62/100
4th	ORCA 2019, London (United Kingdom), Series A	Developer of photonic quantum computing systems for machine learning applications	$18.7M	Octopus Ventures, Atmos Ventures & 10 others	62/100
5th	QuiX Quantum 2019, Enschede (Netherlands), Series A	Provider of photon-powered quantum computing processors	$23.2M	Invest-NL, FORWARD.one & 7 others	57/100
6th	Quanfluence 2021, Bengaluru (India), Seed	Provider of quantum computing system and services	$2M	pi Ventures, RTBI & 7 others	56/100
7th	Quantum Source 2021, Rehovot (Israel), Series A	Developer of quantum computers with qubits	$77M	Eclipse, Dell Technologies Capital & 6 others	56/100
8th	Bose Quantum 2021, Beijing (China), Series B	Developer of AI-based universal hybrid quantum computers	$145M	Huameng Science Technology, qfcapital.com.cn ... & 22 others	56/100
9th	Pixel Photonics 2020, Munster (Germany), Seed	Provider of single-photon detectors	$9M	Quantonation, HTGF & 10 others	54/100
10th	TuringQ 2021, Shanghai (China), Series B	Provider of quantum computing chips	$92.9M	Yuanhe Holdings, Tsinghua Holdings Capital ... & 9 others	53/100