How many total Quantum Computing companies are there?

As of Apr 2026, there are 875 active companies in Quantum Computing sector.

Which countries have the most Quantum Computing companies?

United States (262) has the highest number of Quantum Computing companies, followed by United Kingdom (90) and India (87).

How many Quantum Computing companies are funded?

As of Apr 2026, 349 companies in this sector have received funding.

Which company has raised the most funding in Quantum Computing sector?

As of Apr 2026, PsiQuantum has secured $2.32B in funding, making it the highest-funded company in the Quantum Computing sector.

Which country has attracted the most investment in Quantum Computing companies?

With $7.59B in total funding, United States has attracted the most investment among Quantum Computing companies.

Who are the top investors in Quantum Computing companies?

The top investors in Quantum Computing companies by number of investments are Europa, OSTI and Quantonation

How much venture capital has Quantum Computing sector attracted?

In the last 10 years, venture capital firms have invested $9.2B in this sector.

How many unicorns has Quantum Computing sector produced?

Globally, there are 6 unicorns in Quantum Computing sector, to date.

Quantum Computing - 2026 Market & Investments Trends

Companies included in Quantum Computing sector

Companies working in the value chain of quantum computing which includes hardware, software, enabling technologies and industrial applications. It also includes research labs dedicated for quantum technology; and companies providing quantum-exclusive consultancy services

Companies excluded in Quantum Computing sector

Incubators and investment consultancies for quantum technology; content platforms for quantum computing; Service providers who are not quantum-first; Fast computing technologies, such as high-throughput computing, parallel, concurrent, distributed computing, supercomputer, etc., which may be claimed to be at par with quantum computing

Key Metrics

Total Companies

1.03K

Top Companies

IonQ, D-Wave & more

Total Funding

$15.7B

Funded Companies

349

Series A+ Companies

143

Series C+ Companies

Unicorns Created

IPOs

Acquisitions

Also known as

Quantum Mechanics Technology

View complete details of this sector

The market map of Quantum Computing gives a visual overview of the sector, showing key business models, their interactions in the value chain, and industry evolution. Top 3 trending business models in Quantum Computing sector are Quantum Computing in Cybersecurity, Quantum Software and Quantum Computers.

Recent BlueBox/Industry Definition image of Quantum Computing

Here are some reports related to Quantum Computing sector:

Free

Quantum Computing - Sector Report

Edition: November, 2025 (71 Pages)

Free

Quantum computing Landscape - Sector Report

Edition: July, 2025 (69 Pages)

Free

Quantum computing landscape - Sector Report

Edition: June, 2024 (71 Pages)

View all reports related to Quantum Computing. Sign up today!

There are more than 1.03K companies in Quantum Computing. IonQ is the top Quantum Computing company globally, ranked using Tracxn Score (what's this?).

Here are 5 of the top Quantum Computing companies globally:

Company	Description	Location	Founded	Current Stage	Private Funding Raised
IonQ	Provider of cloud and trapped ion technology-based universal quantum computers	College Park (United States)	2015	Public	$86M
D-Wave	Developer and delivery of quantum computing systems, software, and services	Palo Alto (United States)	1999	Public	$256M
Infleqtion	Provider of neutral-atom quantum technology, products and solutions	Louisville (United States)	2007	Public	$311M
PsiQuantum	Developer of photon-based universal quantum computers	Palo Alto (United States)	2015	Series E	$2.32B
Oxford Ionics	Provider of quantum computers	Oxford (United Kingdom)	2019	Acquired	$48.4M

Get a longer list of companies

Companies founded year-on-year in the Quantum Computing sector

126 Quantum Computing startups were founded in 2022 - this is the most number of startups founded in any year in the last 10 years.

Total Number of Companies

Year	No. of companies
2026	-
2025	41
2024	77
2023	89
2022	126
2021	108
2020	94
2019	70
2018	76
2017	56

Companies founded across countries in the Quantum Computing sector

United States has 262 Quantum Computing startups, the most by any country, followed by United Kingdom which has 90 startups and India which has 87.

Total Number of Companies

Country	No. of companies
United States	262
United Kingdom	90
India	87
Germany	80
Canada	57
Australia	32
Netherlands	26
France	25
Spain	25
Japan	23

Stage-wise distribution of the Quantum Computing sector

Out of the total 1,030 Quantum Computing companies, 349 have secured funding. Among them, 143 have reached Series A or higher, and 71 to Series B or beyond.

Founded - 1,030

Funded - 349

Series A+ - 143

Series B+ - 71

Series C+ - 47

Company Stage	No. of companies
Founded	1,030
Funded	349
Series A+	143
Series B+	71
Series C+	47

Want to know more about Quantum Computing ? Signup and explore Tracxn for free

1K+ Total Companies
$15.7B+ Total Funding
345+ Funded Companies
15+ IPOs
15+ Acquisitions
15+ Reports

Total funding year-on-year in the Quantum Computing sector

The Quantum Computing sector saw a total funding of more than $14.1B in the last 10 years. The most amount of funding was in 2025 at more than $5.54B. There has been a total funding of $393M in 2026 till date.

Total Funding

Year	Total Funding
2026	$393M
2025	$5.54B
2024	$2.1B
2023	$1.92B
2022	$1.02B
2021	$1.73B
2020	$468M
2019	$470M
2018	$120M
2017	$326M

Total funding across countries in the Quantum Computing sector

In the last 10 years, Quantum Computing startups in United States have recieved the highest funding among all countries - $7.59B. Netherlands follows with $1.17B and United Kingdom with $870M.

Total Funding

Country	Total Funding
United States	$7.59B
Netherlands	$1.17B
United Kingdom	$870M
Finland	$697M
Canada	$696M
Australia	$518M
France	$494M
Germany	$230M
Switzerland	$141M
India	$96.7M

Total funding amount raised by stage in the Quantum Computing sector

Over the last 10 years, the Quantum Computing sector have seen $833M into Seed Stage funding rounds, $5.42B into Early Stage funding rounds and $4.94B go into Late Stage funding rounds.

Funding Stage	Total Funding
Early Stage	$5.42B
Late Stage	$4.94B
Grant	$1.5B
Post IPO	$1.18B
Seed Stage	$833M
Debt	$135M
PE	$1M
Other-Equity	$500K

Recent Funding Rounds in Quantum Computing

In the year 2026, till March 2026, Quantum Computing companies have raised $325M in equity funding across 17 rounds. In the same period last year (i.e. till March 2025), Quantum Computing companies had raised $781M across 26 rounds. So, 2026 has seen a 58.34% drop in funding in Quantum Computing companies as compared to 2025.

Here are some recent, important funding rounds in Quantum Computing:

Company	Round Raised	Amount Raised	Funding Date	Investors
memQ	Series A	9861	Mar 31, 2026	Quantonation and 1 more
Silicon Quantum Computing	Series A	5578	Mar 24, 2026	National Reconstruction Fund
zerothird	Seed	7621	Mar 23, 2026	Verbundx and 1 more
Rhonexum	Seed	6316	Mar 18, 2026	QDNL Participations and 1 more
Kvantify	Seed	5499	Mar 06, 2026	Europa and 1 more

See a more detailed list of funding rounds

Europa is the top investor in Quantum Computing companies based on number of companies invested.

Here are some top investors in Quantum Computing:

Investor	Location	Top Portfolio Companies
Europa	Belgium	IQM, Multiverse Computing, Seeqc and Quandela
OSTI	Oak Ridge (United States)	Infleqtion, Rigetti Computing, Q-Ctrl and Seeqc
Quantonation	Paris (France)	Multiverse Computing, ORCA, Quandela and Diraq
EIC Fund	Brussels (Belgium)	IQM, Multiverse Computing, Quandela and QphoX
HHS	Washington, DC (United States)	QSimulate, QuantumBio, MagneSensors and QuSpin

See a more detailed list of investors

In the year 2026, till March 2026, 2 acquisitions happened in Quantum Computing sector. Last year, in 2025, a total of 5 acquisitions happened in Quantum Computing sector.

Here are some recent, important acquisitions in Quantum Computing:

Company	Acquisition Type	Acquisition Date	Acquirers
NuCrypt	Business Acquisition	Mar 05, 2026	Quantum Computing
Quantum Circuits	Business Acquisition	Jan 07, 2026	D-Wave
Vector Atomic	Business Acquisition	Sep 17, 2025	IonQ
Oxford Ionics	Business Acquisition	Jun 09, 2025	IonQ
Lightsynq	Business Acquisition	May 12, 2025	IonQ

See a more detailed list of acquisitions

Acquisition trends in Quantum Computing

Here are the acquisition trends in Quantum Computing:

Total Number of Acquisitions

Year	No. of companies
2026	2
2025	5
2024	4
2023	1
2022	1
2021	4
2020	-
2019	2
2018	1
2017	-

In the year 2026, till March 2026, 2 IPOs happened in Quantum Computing sector.

Here are some recent, important IPOs in Quantum Computing:

Company	IPO Date	Exchange Symbol
Xanadu	Mar 26, 2026	Toronto Stock Exchange (TSX)
Infleqtion	Feb 17, 2026	New York Stock Exchange (NYSE)
Quantum Base	Apr 04, 2025	London Stock Exchange (LSE)
BTQ	Feb 17, 2023	Neo Exchange (NEO)
SuperQ Quantum Computing	Oct 24, 2022	Canadian Securities Exchange (CSE)

See a more detailed list of IPOs

Companies founded by alumni from top colleges in the Quantum Computing sector

Most number of Quantum Computing startups have been founded by alumni from Stanford University, University of Oxford and University of Cambridge.

College	No. of companies
Stanford University	21
University of Oxford	19
University of Cambridge	17
Harvard University	13
Massachusetts Institute of Technology	11
Imperial College London	8
University of Waterloo	8
University of Bristol	7
University of Toronto	7
University of Chicago	6

Total funding in companies founded by alumni from top colleges in the the Quantum Computing sector

In the last 10 years, University of Cambridge graduates' Quantum Computing companies have raised the most funding among top colleges. Imperial College London alumni are second, and Stanford University alumni are third.

College	Total Funding
University of Cambridge	$2.72B
Imperial College London	$2.44B
Stanford University	$1.6B
Massachusetts Institute of Technology	$1.52B
New York University	$1.05B
Harvard University	$440M
University of Oxford	$435M
University of Chicago	$368M
Cornell University	$347M
Princeton University	$347M