Company lists · Data refreshed September 2026
Top 25 Patent prosecution software companies based in the United States
RevenueBase identified 331 patent prosecution software companies headquartered in the United States as of September 2026 and tracks 4,601 professional contacts across them, including 2,179 with verified work emails and 1,687 with mobile numbers. New York is the largest hub.
This list covers patent prosecution software companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest patent prosecution software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 754 | ||||
“Since 2004, MaxVal has helped the world's most innovative organizations capitalize on their intellectual property by being different from the legacy IP solution providers.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 428 | ||||
“Wolf, Greenfield & Sacks, P.C.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | Effectual ServicesPartial evidence | 242 | |||
“Effectual Services is a well established and fast growing patent and legal support services company having experience and expertise in providing patent and legal services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 213 | ||||
“Clairvolex offers a hybrid portfolio of tech-enabled Intellectual Property Services and market-leading IP software solutions.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | Wellspring WorldwidePartial evidence | 148 | |||
“Discover Wellspring’s software solutions and expert services that transform how ideas and inventions are discovered, protected, and brought to market.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 142 | ||||
“Cardinal IP is a global leader in patent and trademark research, and a provider of software services for intellectual property management.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 139 | ||||
“Computer Packages Inc (CPI) is a privately owned and trusted provider of innovative IP Management solutions.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 127 | ||||
“Since 1976, BSKB has been providing a full range of intellectual property law services to clients in the areas of patent prosecution, post-grant review, litigation, ITC…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 100 | ||||
“HG Law LLP (formerly Haley Guiliano LLP) is an international intellectual property law firm specializing in patent law from offices in London, New York and Silicon Valley.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | Harrity & Harrity, LLPStrong evidence | 87 | |||
“Harrity & Harrity is a leading patent preparation and prosecution firm specializing in the electrical and mechanical technology areas, and is considered a Go-To Firm for the…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 87 | ||||
“Azami Global is a leading provider of international intellectual property services, helping law firms, corporations, and IP professionals protect innovation around the world.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | Global Patent Solutions LLCIndirect evidence | 75 | |||
“Protect Your Clients.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | Sheridan Ross P.CIndirect evidence | 75 | |||
“Focused entirely on the worldwide protection of intellectual property rights in the United States and around the globe, few firms can match our breadth of experience and level of…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | PatlyticsIndirect evidence | 58 | |||
“Patlytics is where IP outcomes happen.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | Mcneill PllcStrong evidence | 55 | |||
“McNeill PLLC, a nationally recognized biotech and pharma-focused IP boutique firm, provides comprehensive life science patent prosecution and counseling services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 55 | ||||
“A leading IP research firm offering comprehensive intellectual property and legal services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | Legal Advantage LLCPartial evidence | 50 | |||
“Patent professionals & litigation support experts We provide a suite of intellectual property solutions for law firms and corporations alike throughout the United States and…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | The Patent ProfessorStrong evidence | 46 | |||
“For over 20 years, The Patent Professor®, a national AV-rated intellectual property law firm, has specialized in patent prosecution matters, opinion work, and securing brand…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 42 | ||||
“Alt Legal’s award-winning intuitive, cloud-based software is the easiest way to prepare and manage global IP filings.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 40 | ||||
“HFZ is a boutique IP law firm located in the heart of Chicago, specializing in United States and foreign patent prosecution and counseling.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | JuristatPartial evidence | 40 | |||
“What if obtaining a patent was faster, easier, and more predictable?” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | Mueting Raasch GroupStrong evidence | 37 | |||
“Mueting Raasch Group is an intellectual property law firm with expertise in patent preparation, prosecution, and opinions.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | Wenderoth, Lind & Ponack, L.L.PPartial evidence | 33 | |||
“Wenderoth is an Intellectual Property firm with one primary focus - prosecution.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 33 | ||||
“Inteum Company develops the benchmark intellectual property management software (IPMS) solution, Minuet.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | DeepipPartial evidence | 33 | |||
“Meet DeepIP: The AI platform that helps patent practitioners save half the time and raise the quality of every patent, from idea to enforcement.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 331 patent prosecution software companies based in the United States
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Patent prosecution software companies based in the United States at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among patent prosecution software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “patent prosecution software companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among patent prosecution software companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 2,179 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 5, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
How many patent prosecution software companies are there based in the United States?
RevenueBase identified 331 patent prosecution software companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Maxval Group, INC, headquartered in Los Altos, tops this list with the largest team on record.
Which city has the most patent prosecution software companies?
New York leads with 12 headquartered companies, followed by Chicago (11) and San Francisco (11).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,179 verified decision-maker contacts tracked across these 331 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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