Quantum Computing

2.1 Startup map

Quantum is a truly global ecosystem

Every VC-backed Quantum Computing company, placed on the map by headquarters and coloured by milestone — unicorns, decacorns and exits. Switch tabs to zoom into the US, Europe and Asia.

2.2 Related market maps

Dive deeper: Quantum Computing market maps

Hand-curated landscape charts from the Dealroom data team. Each map ranks every tracked startup in the segment by valuation, revenue, growth and funding.

Browse the full collection of 6+ market maps on Dealroom.

2.3 Top companies

Much of quantum’s value is already realized

7 of these 20 have already gone public — via IPO or SPAC — or been acquired, including the three largest, together about 62% of the value shown here. Ranked by latest valuation.

#	Company	Founder origins	Status	Revenue	Valuation
1	I IonQ 🇺🇸	🇰🇷🇺🇸	SPAC ’21	$638M ’28e	$19.1B
2	Q Quantinuum 🇬🇧	🇺🇸🇬🇧	IPO ’26	$31M ’25	$15.7B
3	D D-Wave Quantum 🇺🇸	🇨🇦🇺🇸🇷🇺	SPAC ’22	$85M ’27e	$9.7B
4	P PsiQuantum 🇺🇸	🇦🇺🇬🇧	Private	—	$7B
5	R Rigetti Computing 🇺🇸	🇨🇦	SPAC ’22	$100M ’28e	$6.7B
6	S SandboxAQ 🇺🇸	🇺🇸	Private	$128M ’24	$5.8B
7	X Xanadu 🇨🇦	🇦🇺	Private	$5M ’25	$3.6B
8	T Terra Quantum 🇨🇭	🇩🇪	Private	$14M ’23	$3.5B
9	O Origin quantum 🇨🇳	🇨🇳	Private	$2M ’23	$3.2B
10	P Pasqal 🇫🇷	🇫🇷	Private	$637K ’22	$2.2B
11	S SkyWater Technology 🇺🇸	🇺🇸	IPO ’21	$657M ’28e	$2B
12	P Photonic 🇨🇦	🇨🇦	Private	—	$2B
13	I IQM 🇫🇮	🇲🇾🇩🇪🇫🇮	Private	$34M ’25	$1.9B
14	I Infleqtion 🇺🇸	🇺🇸	SPAC ’26	$40M ’26	$1.8B
15	O Oxford Quantum Circuits 🇬🇧	🇬🇧	Private	—	$1.4B
16	N Nord Quantique 🇨🇦	🇨🇦	Private	—	$1.4B
17	O Oxford Ionics 🇬🇧	🇬🇧	Acquired ’25	—	$1.1B
18	Q QuEra Computing 🇺🇸	—	Private	$5M ’23	$920M
19	Q Quantum Machines 🇺🇸	🇮🇱	Private	$88M ’24	$700M
20	Q Quantware 🇳🇱	🇳🇱🇮🇹	Private	—	$668.8M

Source: Dealroom Next Gen API — the 20 most valuable quantum-computing companies by latest valuation. Founder origins are from Dealroom's curated founder data (where a founder is originally from); exit status from company transactions; revenue is the latest reported or estimated figure (year shown). Open the full Quantum Computing list on Dealroom.

2.4 Sector benchmark

Quantum’s hit rate leads deep tech

Quantum is a small sector — just 222 VC-backed companies — but an unusually high share break out. 7.2% are unicorns and 2.3% are thoroughbreds, the highest rates of any frontier sector we track — and the companies that have exited since 2018 have already returned 3.2× the capital invested (#3 of 11, despite being the youngest sector here). Switch between the three measures.

2.5 Commercial traction

The race to quantum revenue — and the company breaking away

Quantum is still a pre-revenue field for most, but a handful of companies are now booking real money. IonQ has pulled clear of the pack, becoming the first public quantum company past $100M in annual revenue — a roughly 62× climb since 2021, and analyst estimates have it near $638M by 2028.

3.1 Rounds & valuations

Largest Quantum Computing rounds & most valuable companies

A live treemap of $100M+ rounds — or switch the view to size companies by their latest valuation (EV). Filter by HQ region; drag the year slider to add earlier rounds.

3.2 Top investors

Who's backing quantum — and when they get in

Quantum's 222 VC-backed companies have drawn 960 distinct investors — and the kind of investor tracks the stage at which they get in. Angels and accelerators almost only write seed cheques (84% and 95% of their entries); VCs span the whole journey; public money co-invests at every stage; and corporates arrive late — 51% of their entries are Series B+.

By entry stage Most active backers At a glance

Seed

Series A

Series B+

👼 Angels73 investors · 81 entries

Seed

1. H Hermann Hauser🇬🇧ParityQC, QuantrolOx
2. 7 7percent Ventures🇬🇧Universal Quantum, Nu Quantum
3. C Charlie Songhurst🇺🇸Rigetti Computing, Rahko

+60 more

Series A

1. H Hermann Hauser🇬🇧Oxford Ionics
2. L Lars Fjeldsoe-Nielsen🇬🇧Cambridge Quantum Computing
3. T Tim Draper🇺🇸Xanadu

+4 more

Series B+

1. A Angel Collective Opportunity FundTuring Quantum
2. B Bill Lightfoot🇺🇸Q-CTRL
3. E Eric Schmidt🇺🇸SandboxAQ

+3 more

🚀 Accelerators23 investors · 37 entries

Seed

1. Y Y Combinator🇺🇸Rigetti Computing, Aurora Quantum Technologies +3
2. A Alchemist Accelerator🇺🇸Rigetti Computing, QC Ware +2
3. C Creative Destruction Lab🇨🇦Proteinqure, Qubit Engineering +1

+20 more

Series A

1. P Playground Global🇺🇸PsiQuantum, Phasecraft

Series B+·

💸 VCs612 investors · 814 entries

Seed

1. Q Quantonation🇫🇷Quantum Benchmark, Multiverse Computing +12
2. A Alumni Ventures🇺🇸EeroQ, BosonQ +2
3. D DCVC🇺🇸Rigetti Computing, Horizon Quantum Computing +2

+324 more

Series A

1. Q Quantonation🇫🇷Quandela, HQS Quantum Simulations +2
2. O Oxford Science Enterprises🇬🇧Quantum Motion, Oxford Quantum Circuits +1
3. V Verve Ventures🇨🇭Kiutra, ORCA Computing +1

+194 more

Series B+

1. A Alumni Ventures🇺🇸Rigetti Computing, Zapata +3
2. F Firgun Ventures🇬🇧Oxford Quantum Circuits, Photonic +1
3. T T. Rowe Price🇺🇸Rigetti Computing, SandboxAQ +1

+164 more

🏛️ Public bodies48 investors · 101 entries

Seed

1. H HTGF🇩🇪HQS Quantum Simulations, Kiutra +4
2. E EIC Fund🇱🇺Sparrow Quantum, BEIT +1
3. B Bpifrance🇫🇷C12, Quobly +1

+24 more

Series A

1. E EIC Fund🇱🇺IQM, C12 +5
2. B Bpifrance🇫🇷Pasqal, Quandela +2
3. I In-Q-Tel🇺🇸Lightsynq, Maybell Quantum +1

+16 more

Series B+

1. I In-Q-Tel🇺🇸Quintessence Labs, Q-CTRL +5
2. U US Department of Commerce🇺🇸Atom Computing, Diraq +3
3. N National Security Strategic Investment Fund🇬🇧Photonic, Quantum Motion +1

+9 more

🏢 Corporates204 investors · 249 entries

Seed

1. A Airbus Ventures🇺🇸QC Ware, C12
2. E Exor🇳🇱Planckian, Ephos
3. B Baidu Ventures🇨🇳Huayi Quantum, FieldQuantum

+64 more

Series A

1. T TRUMPF Venture🇩🇪Kiutra, QuSide +1
2. I IBM🇺🇸Strangeworks, Qedma
3. T Tencent🇨🇳IQM, Horizon Quantum Computing

+45 more

Series B+

1. N NVentures🇺🇸Alice & Bob, PsiQuantum +2
2. B Bosch Ventures🇩🇪IonQ, Quantum Motion
3. I Intel Capital🇺🇸Quantum Machines, Quantware

+106 more

Each cell — the backers of that type that most often make their first entry at that stage, with the companies they backed.“+N more” = further distinct investors in the cell.

QQuantonation🇫🇷 19

EEIC Fund🇱🇺 12

IIn-Q-Tel🇺🇸 10

AAlumni Ventures🇺🇸 9

HHTGF🇩🇪 7

BBpifrance🇫🇷 7

DDCVC🇺🇸 6

YY Combinator🇺🇸 5

22xN🇬🇧 5

GGround State Ventures🇳🇱 5

555 North🇩🇰 5

OOxford Science Enterprises🇬🇧 5

VVerve Ventures🇨🇭 5

UUS Department of Commerce🇺🇸 5

AAlchemist Accelerator🇺🇸 4

AAbies Ventures🇯🇵 4

SSequoia🇺🇸 4

SSerendipity Capital🇸🇬 4

MMain Sequence Ventures🇦🇺 4

QQAI Ventures🇨🇭 4

NNational Security Strategic Investment Fund🇬🇧 4

MMorpheus Ventures🇺🇸 4

Seed

Series A

Series B+

Entries

👼 Angels73 investors · 81 entries

6884%

79%

67%

81

🚀 Accelerators23 investors · 37 entries

3595%

25%

·

37

💸 VCs612 investors · 814 entries

40650%

22027%

18823%

814

🏛️ Public bodies48 investors · 101 entries

4141%

3232%

2828%

101

🏢 Corporates204 investors · 249 entries

7129%

5221%

12651%

249

All investors

621

313

348

1282

share of that type's first cheques landing at the stage number = distinct investor→company entries · hover a cell for examples

Universe = Quantum Computing's 222 VC-backed companies (Dealroom's venture-backed lens — is_vc_backed, founded since 1990), backed by 960 distinct investors across 1,282 first-cheque entries. An investor's entry point into a company is the earliest priced venture round they joined (Seed = pre-seed / seed / angel; Series A; Series B+ = Series B onward, incl. late VC, growth equity and PIPEs). Grants, academic spin-outs, debt, convertibles, secondaries and IPO / post-IPO activity are not counted as venture entries. Investor type follows Dealroom's own investor classification, folded into five buckets — “public bodies” groups governments, agencies, sovereign & public funds and university-owned arms. Source: Dealroom Next Gen API.

3.4 By destination

Where Quantum Computing capital lands

The same Quantum Computing VC, by destination — group by continent, country, city or sector, switch between amount raised and number of rounds, and read it as a ranked bar chart or a heat map over time. Live from the Dealroom Next Gen API.

3.5 Share of VC

How much of all venture capital goes into Quantum Computing

Quantum Computing's share of total VC investment per year — pick locations to compare how concentrated each market's venture dollars are. Counts every VC round into Quantum Computing-tagged, VC-backed companies. Live from the Dealroom Next Gen API.

4.1 Founder origins

Where Quantum Computing founders come from

The country each founder of a Dealroom-tracked Quantum Computing company originates from — 638 founders across 54 countries. 🇺🇸 United States is the single biggest source, but per capita 🇮🇱 Israel and 🇫🇮 Finland — with a fraction of the population — pull far ahead.

4.2 Academia

The universities behind Quantum Computing founders

Which institutions produce the most Quantum Computing founders — ranked by alumni who went on to start a Quantum Computing company tracked by Dealroom.

This ranks where founders studied, not research strength — so science powerhouses like the University of Chicago (Chicago Quantum Exchange, Argonne, Fermilab) and the University of Maryland (Joint Quantum Institute) rank lower here; their quantum weight is in labs and national research, not startup founders.

4.3 Patent intelligence

The most valuable patent portfolios in Quantum Computing

Patent value doesn't track headline valuation: IonQ is the most valuable Quantum Computing company ($19.2B), but D-Wave Quantum owns the most valuable patent portfolio ($99M). Quantinuum holds the most “trophy” patents — 7 families each worth $3M+. By technology, atomic physics patents are the most widely held — spread across Quantinuum, Infleqtion and Oxford Ionics.

PNG

$345MCombined patent value

1,062Active patent families

16Patents worth $3M+

9Companies with tracked IP

Portfolio value Value per patent By category

Estimated patent-portfolio value

DD-Wave Quantum🇺🇸 $99M186 families

IIonQ🇺🇸 $71M191 families

QQuantinuum🇬🇧 $61M160 families

PPsiQuantum🇺🇸 $53M169 families

RRigetti Computing🇺🇸 $27M90 families

IInfleqtion🇺🇸 $13M98 families

IIQM🇫🇮 $12M78 families

XXanadu🇨🇦 $9M71 families

OOxford Ionics🇬🇧 $539k19 families

Estimated patent-portfolio value for the 9 venture-backed Quantum Computing companies Dealroom tracks patent intelligence for; value per family, the share worth $3M+ each, and each portfolio's primary technology category all come from the same data. Source: Dealroom Patent Intelligence · Patsnap. Request a demo for individual patent records, citations and filing velocity.