Company lists · Data refreshed September 2026
Top 25 Intellectual property litigation firms based in Portland, United States
RevenueBase identified 60 intellectual property litigation firms headquartered in Portland, United States as of September 2026 and tracks 1,617 professional contacts across them, including 857 with verified work emails. New York is the largest hub.
This list covers intellectual property litigation firms headquartered in Portland, 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 Portland, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 398 contacts → | ||||
Indirect evidence “We focus our practices by industry, so you can access legal services based on your unique needs in today’s economy.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 197 contacts → | ||||
Partial evidence “A leading Pacific Northwest law firm, Tonkon Torp provides legal counsel, business advice and litigation services to regional, national and international clients.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 146 contacts → | ||||
Strong evidence “Klarquist is one of the oldest and largest full-service intellectual property firms in the Pacific Northwest.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 78 contacts → | ||||
Partial evidence “Markowitz Herbold is a litigation law firm with offices in Portland, Oregon, and New York City.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 67 contacts → | ||||
Indirect evidence “In this era of mediation and arbitration, experienced trial attorneys are becoming increasingly rare.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 65 contacts → | ||||
Indirect evidence “Excellent client service has always been our overarching goal.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 56 contacts → | ||||
Partial evidence “Located in Portland, Oregon, the attorneys of Lindsay Hart offer a full range of experienced litigation services to companies, public entities, and individuals.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 54 contacts → | ||||
Partial evidence “Davis Rothwell is your source for Northwest litigation defense.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 51 contacts → | ||||
Strong evidence “McCoy Russell LLP is an elite intellectual property law firm focused on the prosecution and development of patent and trademark portfolios.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 39 contacts → | ||||
Indirect evidence “Deeply rooted in the great Northwest and nationally recognized for outstanding work for nearly 40 years, Stoll Berne has achieved extraordinary results for our clients through…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 36 contacts → | ||||
Partial evidence “Chock Barhoum LLP is one of the preeminent litigation firms in the Northwest.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 35 contacts → | ||||
Partial evidence “At Chenoweth Law Group, P.C, we provide effective advocacy in complex commercial and civil litigation.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 32 contacts → | ||||
Indirect evidence “Since our founding in 1985, Wyse Kadish LLP has provided a range of exceptional legal services to individuals, families, and businesses.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 26 contacts → | ||||
Indirect evidence “Civil law litigants often find themselves in polarizing situations, where common ground seems out of reach.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 26 contacts → | ||||
Indirect evidence “Founded in 2010, JJH Law offers cutting-edge, smart and creative solutions for its clientele on almost all business matters, but especially in the fields of employment law and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 24 contacts → | ||||
Indirect evidence “As an industry change agent, Immix Law serves as a catalyst for innovation by representing diverse, international, and trailblazing clientele at every stage of the business…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 24 contacts → | ||||
Strong evidence “Kolitch Romano Dascenzo Gates was founded in 2022 by a seasoned team of intellectual property attorneys and professionals.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 23 contacts → | ||||
Indirect evidence “At Alleman Hall & Tuttle LLP, we build exceptional patent and trademark portfolios for clients around the world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 18 contacts → | ||||
Partial evidence “Allegiant Law (formerly known as Richardson Wang) is a boutique Portland, Oregon law firm focusing on litigation and business matters.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 18 contacts → | ||||
Indirect evidence “Brownstein Rask LLP has been a prominent midsize Portland law firm since its founding over 50 years ago.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 16 contacts → | ||||
Indirect evidence “Whether Larkins Vacura Kayser is representing a multi-national company in a multi-million dollar dispute, a mid-size client in a “Bet the Company” battle, or an individual in a…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 14 contacts → | ||||
Partial evidence “Glascock Street Waxler is a civil litigation firm focused on achieving optimal results for our clients.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 14 contacts → | ||||
Strong evidence “About Kolisch Hartwell Kolisch Hartwell, P.C, is an intellectual property (IP) law firm serving clients throughout the United States and around the world from our offices in…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 13 contacts → | ||||
Indirect evidence “Our experience and training allow us to provide the full range of legal services expected of a larger firm, but without the inefficiency of an institutional bureaucracy.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 12 contacts → | ||||
Indirect evidence “An innovative and client-focused IP and business boutique law firm.” 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 60 intellectual property litigation firms based in Portland, United States
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Intellectual property litigation firms based in Portland, 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 Portland, so it is reported there. Company counts and contact totals on this page are exact for Portland, over 60 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 Portland, 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 Portland 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, 857 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 Portland, United States?
RevenueBase identified 60 intellectual property litigation firms headquartered in Portland, 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?
Schwabe, headquartered in Portland, 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 857 verified decision-maker contacts tracked across these 60 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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Download this list →Related lists
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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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