Company lists · Data refreshed September 2026

Top 17 Intellectual property law companies based in Portland, United States

As of September 2026, this directory lists 26 intellectual property law companies across Portland, with 342 contacts and 182 email addresses. Across the United States, New York is the largest hub for this category (172 companies); Portland has 26.

Intellectual property law companies advise and represent clients on patents, trademarks, copyrights, trade secrets, licensing, and related disputes. This list covers companies that provide legal services focused on protecting, managing, licensing, or enforcing intellectual property rights. Ranked by team size, largest first. Data current as of September 19, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review
26Companies
342Contacts tracked
182Verified emails
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The 17 largest intellectual property law companies based in Portland, United States

Ranked by team size
Top 17 of 26 intellectual property law companies based in Portland, United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to intellectual property law companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidencePortland, OR, United StatesHQ checked Sep 19, 202651-200146 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 19, 2026
2Strong evidencePortland, OR, United StatesHQ checked Sep 19, 202651-20051 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 19, 2026
3Strong evidencePortland, OR, United StatesHQ checked Sep 19, 202611-5024 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 19, 2026
4Indirect evidencePortland, OR, United StatesHQ checked Sep 19, 202611-5023 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 19, 2026
5Strong evidencePortland, OR, United StatesHQ checked Sep 19, 202611-5014 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 19, 2026
6Partial evidencePortland, OR, United StatesHQ checked Sep 19, 20261-1012 contacts →

Partial evidence

“An innovative and client-focused IP and business boutique law firm.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidencePortland, United StatesHQ checked Sep 19, 20261-1010 contacts →

Indirect evidence

“Vitek IP combines traditional IP expertise with cutting-edge software and technology to create tangible market value for clients.”

Source: RevenueBase Database · checked Sep 19, 2026
8Partial evidencePortland, United StatesHQ checked Sep 19, 202611-509 contacts →

Partial evidence

“The DuBoff Law Group is a small law firm based in Portland, Oregon.”

Source: RevenueBase Database · checked Sep 19, 2026
9Strong evidencePortland, OR, United StatesHQ checked Sep 19, 202611-507 contacts →

Strong evidence

“Compass IP Law PC is an intellectual property firm with a focus on patent law.”

Source: RevenueBase Database · checked Sep 19, 2026
10Strong evidencePortland, ME, United StatesHQ checked Sep 19, 20261-106 contacts →

Strong evidence

“Caseiro Burke is an intellectual property law firm providing legal services to individuals and businesses around the world.”

Source: RevenueBase Database · checked Sep 19, 2026
11Partial evidencePortland, ME, United StatesHQ checked Sep 19, 20261-106 contacts →

Partial evidence

“Opticliff Law, LLC is a Portland, Maine law firm serving clients worldwide.”

Source: RevenueBase Database · checked Sep 19, 2026
12Strong evidencePortland, OR, United StatesHQ checked Sep 19, 20261-102 contacts →

Strong evidence

“We are a tight-knit team of experienced, business-minded professionals, dedicated to protecting and defending your company’s intellectual property rights.”

Source: RevenueBase Database · checked Sep 19, 2026
13Strong evidencePortland, United StatesHQ checked Sep 19, 20261-102 contacts →

Strong evidence

“Intellectual Property Management Software and Services Fortune 500 companies use our software to manage their inventions and intellectual property.”

Source: RevenueBase Database · checked Sep 19, 2026
14Partial evidencePortland, OR, United StatesHQ checked Sep 19, 20261-101 contacts →

Partial evidence

“Volat Law provides general business law advice to existing small and medium sized businesses, with a special emphasis on new entrepreneurs.”

Source: RevenueBase Database · checked Sep 19, 2026
15Partial evidencePortland, OR, United StatesHQ checked Sep 19, 20261-101 contacts →

Partial evidence

“We are a law firm providing representation in transactions and litigation related to trademarks, copyrights and business (encompassing everything from commercial real estate and…”

Source: RevenueBase Database · checked Sep 19, 2026
16Strong evidencePortland, OR, United StatesHQ checked Sep 19, 20261-101 contacts →

Strong evidence

“Intellectual Property & Open Source Law Firm”

Source: RevenueBase Database · checked Sep 19, 2026
17Strong evidencePortland, OR, United StatesHQ checked Sep 19, 20261-101 contacts →

Strong evidence

“Psi Star Intellectual Property is a boutique law firm specializing in the acquisition, maintenance, and enforcement of intellectual property rights.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 17 of 26 intellectual property law companies based in Portland, United States

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Intellectual property law companies based in Portland, United States at a glance

As of Sep 19, 2026
53.2%Verified-email coverage
13.2Average contacts per company
1-10Median size (employees)
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
17
11-50
6
51-200
3

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 26 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 law companies, 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 law companies”. 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 law companies), 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 law companies, 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, 182 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 19, 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 intellectual property law companies are in the directory?

The directory includes 26 intellectual property law companies as of September 2026.

Which city in the United States has the most intellectual property law companies?

New York leads the United States with 172 headquartered companies, followed by Washington (91) and Chicago (84). Portland has 26.

How can I find contacts at intellectual property law companies?

The directory includes 342 contacts and 182 email addresses associated with the listed intellectual property law companies.

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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.