Company lists · Data refreshed September 2026

Top 22 Intellectual property law firms based in Portland, United States

Name: Intellectual property law firms based in Portland, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 32 companies tracked

RevenueBase identified 32 intellectual property law firms headquartered in Portland, United States as of September 2026 and tracks 613 professional contacts across them, including 374 with verified work emails. New York is the largest hub.

This list covers intellectual property law 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review

32Companies

613Contacts tracked

374Verified emails

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The 22 largest intellectual property law firms based in Portland, United States

Ranked by team size

Top 22 of 32 intellectual property law firms based in Portland, United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names intellectual property law firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Tonkon Torp LLPPartial evidence	Portland, OR, United StatesHQ checked Sep 4, 2026	51-200	197
	“A leading Pacific Northwest law firm, Tonkon Torp provides legal counsel, business advice and litigation services to regional, national and international clients.” Source: company website · checked Sep 4, 2026
2	Klarquist Sparkman, LLPStrong evidence	Portland, OR, United StatesHQ checked Sep 4, 2026	51-200	145
	“Klarquist is one of the oldest and largest full-service intellectual property firms in the Pacific Northwest.” Source: company website · checked Sep 4, 2026
3	Mccoy RussellStrong evidence	Portland, OR, United StatesHQ checked Sep 4, 2026	51-200	52
	“McCoy Russell LLP is an elite intellectual property law firm focused on the prosecution and development of patent and trademark portfolios.” Source: company website · checked Sep 4, 2026
4	Wyse Kadish LLPIndirect evidence	Portland, OR, United StatesHQ checked Sep 4, 2026	11-50	33
	“Since our founding in 1985, Wyse Kadish LLP has provided a range of exceptional legal services to individuals, families, and businesses.” Source: company website · checked Sep 4, 2026
5	Kolitch Romano Dascenzo Gates LLPStrong evidence	Portland, OR, United StatesHQ checked Sep 4, 2026	11-50	24
	“Kolitch Romano Dascenzo Gates was founded in 2022 by a seasoned team of intellectual property attorneys and professionals.” Source: company website · checked Sep 4, 2026
6	Alleman Hall & Tuttle LLPIndirect evidence	Portland, OR, United StatesHQ checked Sep 4, 2026	11-50	23
	“At Alleman Hall & Tuttle LLP, we build exceptional patent and trademark portfolios for clients around the world.” Source: company website · checked Sep 4, 2026
7	Allegiant LAW LLPPartial evidence	Portland, OR, United StatesHQ checked Sep 4, 2026	11-50	18
	“Allegiant Law (formerly known as Richardson Wang) is a boutique Portland, Oregon law firm focusing on litigation and business matters.” Source: company website · checked Sep 4, 2026
8	Kolisch Hartwell, P.CStrong evidence	Portland, OR, United StatesHQ checked Sep 4, 2026	11-50	14
	“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: company website · checked Sep 4, 2026
9	Elliott, Ostrander & Preston, P.CIndirect evidence	Portland, United StatesHQ checked Sep 4, 2026	11-50	13
	“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: company website · checked Sep 4, 2026
10	IdealegalPartial evidence	Portland, OR, United StatesHQ checked Sep 4, 2026	1-10	12
	“An innovative and client-focused IP and business boutique law firm.” Source: company website · checked Sep 4, 2026
11	Vitek IPIndirect evidence	Portland, United StatesHQ checked Sep 4, 2026	1-10	10
	“Vitek IP combines traditional IP expertise with cutting-edge software and technology to create tangible market value for clients.” Source: company website · checked Sep 4, 2026
12	Duboff LAW GroupPartial evidence	Portland, United StatesHQ checked Sep 4, 2026	11-50	9
	“The DuBoff Law Group is a small law firm based in Portland, Oregon.” Source: company website · checked Sep 4, 2026
13	Compass IP LAW PCStrong evidence	Portland, OR, United StatesHQ checked Sep 4, 2026	11-50	7
	“Compass IP Law PC is an intellectual property firm with a focus on patent law.” Source: company website · checked Sep 4, 2026
14	Motschenbacher & Blattner LLPIndirect evidence	Portland, United StatesHQ checked Sep 4, 2026	11-50	7
	“Motschenbacher & Blattner LLP's practice areas include business and professional practice formations and dissolutions, contracts, shareholder disputes, business succession…” Source: company website · checked Sep 4, 2026
15	Wildwood LAW Group LLCIndirect evidence	Portland, OR, United StatesHQ checked Sep 4, 2026	1-10	5
	Source: company website · checked Sep 4, 2026
16	Opticliff LAWPartial evidence	Portland, ME, United StatesHQ checked Sep 4, 2026	1-10	5
	“Opticliff Law, LLC is a Portland, Maine law firm serving clients worldwide.” Source: company website · checked Sep 4, 2026
17	Matchstick Legal, INCIndirect evidence	Portland, OR, United StatesHQ checked Sep 4, 2026	1-10	5
	“Matchstick works with leading agencies, studios, and professionals across creative and technical disciplines looking to tackle business challenges, solve problems, and just get…” Source: company website · checked Sep 4, 2026
18	Kolitch Romano LLPStrong evidence	Portland, OR, United StatesHQ checked Sep 4, 2026	1-10	2
	“We are a tight-knit team of experienced, business-minded professionals, dedicated to protecting and defending your company’s intellectual property rights.” Source: company website · checked Sep 4, 2026
19	Volat LAWPartial evidence	Portland, OR, United StatesHQ checked Sep 4, 2026	1-10	1
	“Volat Law provides general business law advice to existing small and medium sized businesses, with a special emphasis on new entrepreneurs.” Source: company website · checked Sep 4, 2026
20	Veritas Business LAWPartial evidence	Portland, OR, United StatesHQ checked Sep 4, 2026	1-10	1
	“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: company website · checked Sep 4, 2026
21	PSI Star Intellectual Property LLCStrong evidence	Portland, OR, United StatesHQ checked Sep 4, 2026	1-10	1
	“Psi Star Intellectual Property is a boutique law firm specializing in the acquisition, maintenance, and enforcement of intellectual property rights.” Source: company website · checked Sep 4, 2026
22	LEX PAN LAWStrong evidence	Portland, OR, United StatesHQ checked Sep 4, 2026	1-10	1
	“Intellectual Property & Open Source Law Firm” Source: company website · checked Sep 4, 2026

Showing 22 of 32 intellectual property law firms based in Portland, United States

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

As of Sep 4, 2026

1-10Median size (employees)

New YorkLargest hub · 276 HQs

Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Portland, over 32 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 firms, 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 Portland, United States whose own description of what they do matches “intellectual property law firms”. 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 intellectual property law 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 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, 374 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 4, 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 law firms by metro in the United States

Frequently asked

How many intellectual property law firms are there based in Portland, United States?

RevenueBase identified 32 intellectual property law 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?

Tonkon Torp LLP, headquartered in Portland, tops this list with the largest team on record.

Which city has the most intellectual property law firms?

New York leads with 276 headquartered companies, followed by Chicago (121) and Washington (117).

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 374 verified decision-maker contacts tracked across these 32 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 4, 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.