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Top 53 Quantum Computing Startups to Watch in 2026

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The quantum computing industry is growing with companies developing new types of computers. These businesses are located worldwide, including in the United States, Europe, and Australia.

Some companies have attracted large investments, like PsiQuantum which has raised $2.3 billion. SandboxAQ and Quantinuum have also secured nearly one billion dollars each to fund their work.

Below is our list of 53 Quantum Computing startups worth keeping an eye on.

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Quantinuum builds integrated quantum computers, combining high-performance hardware with sophisticated software. They develop commercial applications for this technology to solve complex problems in cybersecurity, chemistry, and finance.

HeadquartersBroomfield, Colorado, United States
Year Founded2021
FoundersIlyas Khan
Funding Amount$925M
Startup SizeLarge Team (251-1,000)
Last Funding StatusSeries B
Top InvestorsQED Investors, JP Morgan Chase, NVentures, Amgen, Korea Investment Partners

IQM Quantum Computers builds full-stack quantum computers with superconducting processors for on-premises use. Their systems are designed for research institutions and supercomputing centers, giving them direct access to powerful quantum hardware.

HeadquartersEspoo, Southern Finland, Finland
Year Founded2018
FoundersJan Goetz, Juha Vartiainen, Kuan Tan, Mikko Möttönen
Funding Amount$569.1M
Startup SizeLarge Team (251-1,000)
Last Funding StatusSeries B
Top Investors55 North, European Investment Bank, Ten Eleven Ventures, Tesi, Vsquared Ventures

Infleqtion builds quantum-enabled products and software designed for commercial and defense applications. Their work translates complex quantum science into tangible hardware and systems for sensing, computing, and communication.

HeadquartersLouisville, Colorado, United States
Year Founded2007
FoundersDana Anderson, Jakob Reichel, Rainer Kunz, Theodor Hänsch
Funding Amount$307.8M
Startup SizeMid-Size Team (51-250)
Last Funding StatusSeries C
Top InvestorsS32, Maverick Ventures, Foundry Group, U.S. Department of Defense, US Department of Energy

SandboxAQ develops enterprise software that merges AI with quantum technologies for industries like cybersecurity and drug discovery. Their solutions help organizations prepare for the security threats of quantum computing while also accelerating the development of new medicines and materials.

HeadquartersPalo Alto, California, United States
Year Founded2016
FoundersJack Hidary
Funding Amount$975M
Startup SizeMid-Size Team (51-250)
Last Funding StatusSeries E
Top InvestorsNVIDIA, BNP Paribas, Google, S32, US Innovative Technology Fund

The team at Phasecraft develops quantum algorithms designed to run on near-term quantum computers. Their goal is to apply this technology to solve complex scientific and industrial problems that classical computers cannot handle.

HeadquartersLondon, England, United Kingdom
Year Founded2018
FoundersAshley Montanaro, John Morton, Simone Severini, Toby Cubitt
Funding Amount$56.5M
Startup SizeLean Team (11-50)
Last Funding StatusSeries B
Top InvestorsLocalGlobe, Parkwalk Advisors, Novo Holdings, Playground Global, Plural Platform

QuEra Computing builds neutral-atom-based quantum computers designed to solve problems that are intractable for classical machines. Their 256-qubit system, Aquila, is one of the first of its kind to be publicly available for commercial and research use.

HeadquartersBoston, Massachusetts, United States
Year Founded2018
FoundersDirk Englund, John Pena, Markus Greiner, Mikhail Lukin, Nathan Gemelke, Vladan Vuletic
Funding Amount$247M
Startup SizeMid-Size Team (51-250)
Last Funding StatusSeries B
Top InvestorsValor Equity Partners, Google, Safar Partners, NVentures, Rakuten

PsiQuantum is building a fault-tolerant quantum computer by pioneering a unique approach using photonics. This method is designed to create a million-qubit machine, a scale the company believes is necessary to solve commercially valuable problems.

HeadquartersPalo Alto, California, United States
Year Founded2016
FoundersJeremy O'Brien, Mark Thompson, Peter Shadbolt, Terry Rudolph
Funding Amount$2.3B
Startup SizeLarge Team (251-1,000)
Last Funding StatusSeries E
Top InvestorsTemasek Holdings, BlackRock, Playground Global, Founders Fund, Blackbird Ventures

Oxford Ionics develops high-performance quantum processors using a unique trapped-ion approach. Their proprietary electronic qubit control technology allows for a significant leap in processor performance and scalability.

HeadquartersOxford, Oxfordshire, United Kingdom
Year Founded2019
FoundersChris Ballance, Tom Harty
Funding Amount£39.3M
Startup SizeMid-Size Team (51-250)
Last Funding StatusVenture Round
Top InvestorsOxford Science Enterprises, Prosus Ventures, 2xN, IP Group, National Security Strategic Investment Fund

Q-CTRL develops infrastructure software that uses control engineering to improve the performance of quantum hardware. Their tools help researchers and developers overcome instability and errors, accelerating the journey toward commercially viable quantum computers and sensors.

HeadquartersChippendale, New South Wales, Australia
Year Founded2017
FoundersMichael Biercuk
Funding Amount$133M
Startup SizeMid-Size Team (51-250)
Last Funding StatusSeries B
Top InvestorsAlumni Ventures, Sequoia Capital, HSG, Sierra Ventures, Ridgeline

Quantum Motion builds universal quantum computers by creating quantum bits directly on silicon chips. Their approach uses standard CMOS manufacturing, a method that could make powerful quantum processors much faster and cheaper to produce.

HeadquartersLondon, England, United Kingdom
Year Founded2017
FoundersJohn Morton, Simon Benjamin
Funding Amount£50M
Startup SizeLean Team (11-50)
Last Funding StatusSeries B
Top InvestorsBritish Business Bank, Octopus Ventures, Parkwalk Advisors, Bosch Ventures, Inkef

43 Additional Quantum Computing Startups Worth Following

Our top ten picks are just a small slice of what’s happening in the quantum field. Dozens of other companies are building everything from the core hardware to new AI applications, and have collectively raised billions to push the field forward.

Below is a look at the other startups shaping this emerging industry.

StartupMain IndustryYear FoundedAmount RaisedLast Funding Round
Multiverse Computing logo Multiverse ComputingAI2019$344.3MSeries B
Xanadu logo XanaduData2016$268.3MDebt Financing
Oxford Quantum Circuits logo Oxford Quantum CircuitsHardware2017$146.5MSeries B
Alice & Bob logo Alice & BobData2020$162.6MSeries B
Strangeworks logo StrangeworksHardware2018$28MSeries A
Quantum Xchange logo Quantum XchangeCloud2018$23.5MSeries A
OpenLight logo OpenLightHardware2022$37.5MSeries A
Kiutra logo KiutraManufacturing2018€13MSeries A
Photonic logo PhotonicHardware2016CA$138MGrant
Nullspace Inc. logo Nullspace Inc.Mobility2023$3.2MSeed
Quantum Machines logo Quantum MachinesHardware2018$263MSeries C
Quantum Brilliance logo Quantum BrillianceCloud2019$79.4MSeries A
Nanofiber Quantum Technologies logo Nanofiber Quantum TechnologiesManufacturing2022$24MSeries A
Q.ANT logo Q.ANTManufacturing2018$62MSeries A
Classiq Technologies logo Classiq TechnologiesHardware2020$171.8MSeries C
SeeQC logo SeeQCHardware2018$68.6MSeries A
Diraq logo DiraqHardware2022$62.9MVenture Round
T-Rize Group logo T-Rize GroupAI2022$304.5MInitial Coin Offering
Terra Quantum logo Terra QuantumHardware2019$90MPrivate Equity
Qunnect logo QunnectSecurity2017$22.5MSeries A
Horizon Quantum logo Horizon QuantumHardware2018$21.3MSeries A
Nu Quantum logo Nu QuantumSecurity2018£11.3MSeed
PQShield logo PQShieldSecurity2018$63.9MSeries B
Quandela logo QuandelaHardware2017$67.5MSeries B
Qilimanjaro Quantum Tech logo Qilimanjaro Quantum TechCloud2019$14.4MSeed
Cambridge Quantum Computing logo Cambridge Quantum ComputingAI2014$72.8MVenture Round
Quobly logo QuoblyHardware2022$40MGrant
planqc logo planqcHardware2022€50MSeries A
QANplatform logo QANplatformCrypto2019$17.8MVenture Round
Origin Quantum logo Origin QuantumCloud2017CN¥1BVenture Round
Qedma logo QedmaHardware2020$30.7MSeries A
Quantagonia logo QuantagoniaHardware2021€4.3MSeed
Kvantify logo KvantifyAI2022$25.1MVenture Round
SemiQon logo SemiQonHardware2022€19.4MVenture Round
Delta g logo Delta gHardware1980£6.1MSeed
KETS Quantum Security logo KETS Quantum SecurityHardware2016£8.2MVenture Round
Sparrow Quantum logo Sparrow QuantumManufacturing2015$34.1MSeries A
Partisia logo PartisiaCrypto2018DKK14.7MGrant
Silicon Quantum Computing logo Silicon Quantum ComputingHardware2017$133.4MSeries A
Quantrol Ox logo Quantrol OxAI2021$8MSeed
Arctic Instruments logo Arctic InstrumentsManufacturing2024€2.4MSeed
XeedQ logo XeedQHardware2021$30MGrant
Qubitrium logo QubitriumInfrastructure2020$1.5MSeed

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