Company lists · Data refreshed September 2026
Top 25 Intellectual property litigation firms based in Washington, United States
RevenueBase identified 153 intellectual property litigation firms headquartered in Washington, United States as of September 2026 and tracks 7,082 professional contacts across them, including 4,361 with verified work emails. New York is the largest hub.
This list covers intellectual property litigation firms headquartered in Washington, 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 intellectual property litigation firms based in Washington, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,790 contacts → | ||||
Indirect evidence “Committed to Your Success – As a law firm of more than 900 professionals, Venable delivers legal services globally in every area of regulatory compliance, government affairs…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,602 contacts → | ||||
Indirect evidence “Crowell & Moring is an international law firm with operations in the United States, Europe, MENA, and Asia.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 936 contacts → | ||||
Indirect evidence “When your most valuable assets are ideas, innovation, and brand-you need the best.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 468 contacts → | ||||
Strong evidence “Sterne, Kessler, Goldstein & Fox is a full-service intellectual property law firm that provides innovative solutions tailored to your business and industry.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 276 contacts → | ||||
Strong evidence “Founded in 1956, Howrey LLP existed as a global law firm, focused on antitrust, intellectual property and global litigation, with offices throughout the United States and Europe…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 267 contacts → | ||||
Indirect evidence “Hausfeld successfully resolves disputes for its clients, driven by its bold approach and pioneering experience.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 211 contacts → | ||||
Partial evidence “Kellogg Hansen works in complex trial and appellate litigation.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 211 contacts → | ||||
Strong evidence “From Sughrue’s inception in 1957 to the present, we have focused solely on intellectual property law.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 138 contacts → | ||||
Indirect evidence “With offices in Washington, DC, Denver, Colorado, and Austin, Texas, Wilkinson Barker Knauer (WBK) is the nation’s largest stand-alone communications and technology law firm.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 112 contacts → | ||||
Partial evidence “Hollingsworth LLP is among the nation’s leading litigation firms.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 94 contacts → | ||||
Strong evidence “Rothwell Figg is a forward-thinking, client-focused law firm practicing at the convergence of intellectual property, litigation, and technology.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 88 contacts → | ||||
Indirect evidence “How are we different?” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 70 contacts → | ||||
Indirect evidence “HWG LLP is a boutique law firm designed to offer clients access to top tier legal talent without unnecessary overhead.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 40 contacts → | ||||
Partial evidence “O+Z is a dynamic litigation boutique founded by attorneys with extensive experience protecting content and brands.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 34 contacts → | ||||
Partial evidence “Kelly IP is a leading IP law boutique focusing on litigation and counseling in trademark, unfair competition, false advertising, right-of-publicity, copyright, design protection…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 33 contacts → | ||||
Partial evidence “Carr Maloney PC is a business and litigation law firm with a diverse client base including national, regional and local businesses.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 33 contacts → | ||||
Strong evidence “Wenderoth is an Intellectual Property firm with one primary focus - prosecution.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 33 contacts → | ||||
Strong evidence “Staas & Halsey LLP has provided clients with intellectual property protection and technical expertise since 1971.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 29 contacts → | ||||
Strong evidence “WHDA is a full service intellectual property law firm.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 28 contacts → | ||||
Partial evidence “Since its founding in 1971, DWG & P, has provided a broad range of counseling, regulatory, litigation and legislative services to clients in every region of the country.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 25 contacts → | ||||
Indirect evidence “You can count on Weisbrod Matteis & Copley when the stakes are high.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 25 contacts → | ||||
Partial evidence “Levy Firestone Muse has emerged as one of Washington DC’s premier litigation boutiques representing clients in high stakes disputes and investigations, locally, nationally, and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 20 contacts → | ||||
Indirect evidence “Built on decades of experience and a deep commitment to our long-standing clients, our attorneys guide clients through all aspects of their largest, most sensitive and critical…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 20 contacts → | ||||
Indirect evidence “Schaerr | Jaffe LLP is a Washington D.C.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 18 contacts → | ||||
Indirect evidence “At Jordan IP Law, LLC, we help to extend the growth of your business by providing large firm patent experience with unprecedented personal attention at a value that meets your…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: intellectual property litigation firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names intellectual property litigation firms.
- Partial evidence
- Its own public description names part of intellectual property litigation firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name intellectual property litigation firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 153 intellectual property litigation firms based in Washington, United States
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Intellectual property litigation firms based in Washington, United States at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 153 companies.
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 intellectual property litigation firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Washington, United States whose own description of what they do matches “intellectual property litigation firms”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names intellectual property litigation firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among intellectual property litigation firms, and records with no verified work email. Companies headquartered outside Washington 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 its RevenueBase Smart Search 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, 4,361 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 20, 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.
Intellectual property litigation firms by metro in the United States
- Intellectual property litigation firms in New York512
- Intellectual property litigation firms in Los Angeles278
- Intellectual property litigation firms in Chicago242
- Intellectual property litigation firms in Houston211
- Intellectual property litigation firms in Dallas165
- Intellectual property litigation firms in Washington153
- Intellectual property litigation firms in Atlanta147
- Intellectual property litigation firms in San Diego129
- Intellectual property litigation firms in San Francisco128
- Intellectual property litigation firms in Miami121
- Intellectual property litigation firms in Austin106
- Intellectual property litigation firms in Boston95
- Intellectual property litigation firms in Irvine88
- Intellectual property litigation firms in Denver75
- Intellectual property litigation firms in Seattle73
- Intellectual property litigation firms in Minneapolis64
- Intellectual property litigation firms in Portland60
- Intellectual property litigation firms in Philadelphia59
- Intellectual property litigation firms in Tampa56
- Intellectual property litigation firms in Beverly Hills51
- Intellectual property litigation firms in Fort Lauderdale51
- Intellectual property litigation firms in Phoenix49
- Intellectual property litigation firms in Nashville47
- Intellectual property litigation firms in New Orleans46
- Intellectual property litigation firms in San Jose43
- Intellectual property litigation firms in Salt Lake City42
- Intellectual property litigation firms in Coral Gables39
- Intellectual property litigation firms in Alexandria35
- Intellectual property litigation firms in Birmingham35
- Intellectual property litigation firms in Newport Beach35
- Intellectual property litigation firms in Pasadena34
- Intellectual property litigation firms in Wilmington33
- Intellectual property litigation firms in Palo Alto32
- Intellectual property litigation firms in Raleigh32
- Intellectual property litigation firms in Cleveland31
- Intellectual property litigation firms in Charlotte30
- Intellectual property litigation firms in Columbia28
- Intellectual property litigation firms in Kansas City28
- Intellectual property litigation firms in Las Vegas28
- Intellectual property litigation firms in San Antonio27
- Intellectual property litigation firms in Orlando26
- Intellectual property litigation firms in Santa Monica26
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names intellectual property litigation firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many intellectual property litigation firms are there based in Washington, United States?
RevenueBase identified 153 intellectual property litigation firms headquartered in Washington, 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?
Venable LLP, headquartered in Washington, tops this list with the largest team on record.
Which city has the most intellectual property litigation firms?
New York leads with 512 headquartered companies, followed by Los Angeles (278) and Chicago (242).
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 4,361 verified decision-maker contacts tracked across these 153 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 20, 2026.
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- Intellectual property litigation firms based in Berlin, Germany
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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 Smart Search, 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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- Intellectual property litigation firms based in Belo Horizonte, Brazil
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