PatentVest Releases First-Ever Quantum Computing Rankings

Rhea-AI Summary

PatentVest has released its groundbreaking Quantum Computing Pulse Report, analyzing leadership in the emerging $850B quantum computing market. The comprehensive study evaluated 38 companies across various metrics and analyzed 14,762 patent families from 1,743 assignees.

The report reveals three distinct leaders in the startup space: D-Wave Quantum (1,338 publications), Origin Quantum (1,326 publications), and IonQ Inc. (1,224 publications). In the corporate landscape, IBM leads with 1,860 publications, followed by Alphabet (1,223) and Origin Quantum (1,040).

The analysis indicates that quantum computing is transitioning from R&D to commercialization, with success depending on both defensible intellectual property and commercialization capabilities.

Positive

• First comprehensive ranking system for the quantum computing market
• Market size potential of $850B indicates significant growth opportunity
• Detailed analysis of 14,762 patent families provides clear competitive landscape
• Clear identification of market leaders in both startup and corporate segments

Negative

• None.

Designed for investors, board members, and CEOs, the latest PatentVest Pulse Report reveals which companies are emerging as true leaders as quantum computing shifts from R&D to commercialization

Addison, TX, Aug. 19, 2025 (GLOBE NEWSWIRE) -- PatentVest, the first fully integrated IP intelligence and legal strategy firm, today announced the release of its Quantum Computing Pulse Report, the first-ever rankings of leadership in the emerging $850B quantum computing market. Designed for investors, board members, and CEOs, the report profiles 38 companies worldwide advancing commercialization through competitive benchmarking and maps the broader intellectual property landscape, drawing on 14,762 patent families to show that leadership is far from settled, with corporate giants competing head to head against concentrated startup portfolios.

“Quantum computing has reached a historic inflection point,” said Will Rosellini, Chief IP Officer at PatentVest. “What was once pure R&D is now shifting into commercialization, and the winners of this race will own the future. With billions in venture capital already flowing in and public companies trading at multi-billion-dollar valuations, the stakes have never been higher. That’s why this report evaluates both competitive progress and IP defensibility to separate signal from noise and show who is truly positioned to lead.”

Competitive Benchmarking: The Top Companies Racing Toward Leadership
As part of the analysis, PatentVest evaluated 38 companies across technology modality, validation milestones, funding and valuation history, commercialization progress, and the defensibility of their patent portfolios.

Emerging Quantum Computing Companies
Ranked by Global Patent Publications with Total Patent Families (2025)

Rank	Company Name	Publications	Families
1	D-Wave Quantum Inc.	1,338	262
2	Origin Quantum	1,326	1,234
3	IonQ Inc.	1,224	261
4	PsiQuantum	743	188
5	Quantinuum	410	188
6	IQM Quantum Computers	399	101
7	Rigetti Computing, Inc.	348	84
8	Infleqtion, Inc.	260	93
9	Pasqal	124	55
10	Silicon Quantum Computing	121	28
11	Seeqc	119	26
12	Xanadu	114	40
13	ORCA Computing	102	40
14	Quantum Motion	80	15
15	Atom Computing	72	22
16	Equal1	70	11
17	eleQtron	61	30
18	Universal Quantum	61	15
19	Alice&Bob	57	23
20	Anyon Systems	53	18
21	Quantum Computing Inc (QCi)	52	11
22	Huayi Quantum	45	45
23	Oxford Ionics	42	17
24	Diraq	40	11
25	Alpine Quantum Technologies (AQT)	40	15
26	Quantum Brilliance	22	5
27	QuEra Computing	21	7
28	C12	21	6
29	Quandela	20	8
30	Nord Quantique	16	4
31	Oxford Quantum Circuits (OQC)	14	9
32	QuantWare	13	3
33	Nanofiber Quantum Technologies	13	4
34	AegiQ	13	5
35	SpinQ	9	9
36	Quantum Circuits Inc.	6	2
37	SemiQon	6	3
38	Atlantic Quantum	2	1

The results show a highly concentrated leadership group. D-Wave, Origin Quantum, and IonQ stand out as frontrunners, while heavily funded challengers such as PsiQuantum, Quantinuum, and IQM continue to push forward aggressively.

IP Landscape: The Global Leaders
Beyond company-level benchmarking, PatentVest mapped the full intellectual property landscape of quantum computing. The analysis covered 14,762 patent families from 1,743 assignees, identifying which companies and universities are establishing defensible leadership positions. The top corporate assignees are ranked below.

Top 15 Companies in the Quantum Computing IP Landscape
Ranked by Global Patent Publications with Total Patent Families (2015-2025)

Rank	Assignee	Publications	Families
1	International Business Machines Corporation	1,860	601
2	Alphabet Inc.	1,223	231
3	Origin Quantum	1,040	901
4	Microsoft Corporation	621	179
5	Beijing Baidu Netcom Science and Technology	545	376
6	Intel Corporation	516	196
7	IonQ Inc.	354	120
8	Honeywell International Inc.	329	118
9	Tencent Holdings Ltd.	294	114
10	Huawei Investment & Holding Co., Ltd.	272	185
11	Rigetti Computing Inc.	232	65
12	Fujitsu Ltd.	218	109
13	D-Wave Quantum Inc.	208	64
14	Alibaba Group Holding Limited	203	95
15	Bank of America Corporation	193	119

Corporate leaders such as IBM, Alphabet, Intel, and Microsoft dominate publication volume, while startups like D-Wave, Rigetti, and Origin Quantum hold highly concentrated, targeted portfolios. 

Together, the competitive benchmarking and IP landscape analyses show that leadership in quantum computing will not be decided by scientific milestones or funding size alone. Defensible intellectual property, coupled with the ability to commercialize, will define the winners in this $850B market.

The full report, including complete rankings, methodology, and in-depth company profiles, is available for download at https://insights.patentvest.com/quantum-computing.

About the Methodology
PatentVest’s analysis combined two complementary approaches. The IP landscape was built from its proprietary global patent database and includes 14,762 active families from 1,743 assignees worldwide, mapped across corporate, startup, and academic owners. In parallel, the benchmarking study evaluated 38 public and private quantum hardware companies developing superconducting, trapped-ion, neutral-atom, photonic, silicon-spin, and annealing systems. Each was assessed on technology focus, development progress, funding history, validation milestones, commercialization strategy, and patent defensibility.

About PatentVest
PatentVest, a division of MDB Capital Holdings (Nasdaq: MDBH), is the first integrated IP intelligence, strategy, and law firm designed to help visionary companies become technology leaders. By combining a proprietary database with a proven diligence process and expert analysis, PatentVest delivers actionable insights that help clients navigate complex IP landscapes and stay ahead of the curve. This report is powered by PatentVest’s proprietary IP intelligence platform.

For more information or inquiries, please contact info@patentvest.com.

FAQ

Who are the top 3 emerging quantum computing companies by patent publications in 2025?

According to PatentVest's report, the top 3 emerging quantum computing companies by patent publications are D-Wave Quantum Inc. (1,338 publications), Origin Quantum (1,326 publications), and IonQ Inc. (1,224 publications).

What is the estimated market size for quantum computing according to the PatentVest report?

The PatentVest report indicates that quantum computing represents an emerging $850 billion market opportunity.

Which company leads the overall quantum computing IP landscape?

IBM (International Business Machines Corporation) leads the overall quantum computing IP landscape with 1,860 publications and 601 patent families.

How many companies were analyzed in the PatentVest Quantum Computing report?

The report analyzed 38 companies worldwide, evaluating them across technology modality, validation milestones, funding and valuation history, commercialization progress, and patent portfolio defensibility.

What is the total number of patent families analyzed in the quantum computing report?

The report analyzed 14,762 patent families from 1,743 assignees across the quantum computing industry.