Company lists · Data refreshed September 2026

Top 25 Business law firms based in Portland, United States

RevenueBase identified 146 business law firms headquartered in Portland, United States as of September 2026 and tracks 4,467 professional contacts across them, including 2,680 with verified work emails. New York is the largest hub.

This list covers business 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, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review
146Companies
4,467Contacts tracked
2,680Verified emails
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The 25 largest business law firms based in Portland, United States

Ranked by team size
Top 25 of 146 business law firms based in Portland, United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to business law firms: 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
1Indirect evidencePortland, OR, United StatesHQ checked Sep 20, 2026501-1,000864 contacts →

Indirect evidence

“Stoel Rives is a leading U.S.”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidencePortland, OR, United StatesHQ checked Sep 20, 2026201-500398 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, 2026
3Strong evidencePortland, OR, United StatesHQ checked Sep 20, 2026201-500348 contacts →

Strong evidence

“A law firm that practices successfully for over a century and a half must consistently deliver excellent results, inspire long-term loyalty, and continue to innovate to meet…”

Source: RevenueBase Database · checked Sep 20, 2026
4Strong evidencePortland, ME, United StatesHQ checked Sep 20, 2026201-500320 contacts →

Strong evidence

“Pierce Atwood LLP, a highly-regarded, full-service law firm based in New England, has 150 attorneys who serve regional, national, and international clients from offices in…”

Source: RevenueBase Database · checked Sep 20, 2026
5Strong evidencePortland, ME, United StatesHQ checked Sep 20, 2026201-500245 contacts →

Strong evidence

“We are a New England-based law firm that advises clients across the U.S.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidencePortland, ME, United StatesHQ checked Sep 20, 2026201-500200 contacts →

Indirect evidence

“Throughout New England, Preti Flaherty builds momentum for its clients.”

Source: RevenueBase Database · checked Sep 20, 2026
7Strong evidencePortland, OR, United StatesHQ checked Sep 20, 202651-200197 contacts →

Strong 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, 2026
8Strong evidencePortland, ME, United StatesHQ checked Sep 20, 202651-200186 contacts →

Strong evidence

“Drummond Woodsum is a full-service law firm with more than 100 attorneys and consultants in offices in Portland, Maine, Manchester, and Lebanon, New Hampshire, and Flagstaff…”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidencePortland, OR, United StatesHQ checked Sep 20, 2026n/a136 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidencePortland, OR, United StatesHQ checked Sep 20, 202651-200105 contacts →

Indirect evidence

“At Dunn Carney LLP, our clients come first.”

Source: RevenueBase Database · checked Sep 20, 2026
11Strong evidencePortland, ME, United StatesHQ checked Sep 20, 202651-20093 contacts →

Strong evidence

“Norman, Hanson & DeTroy, LLC, is a highly respected law firm in Maine with a widely diversified practice.”

Source: RevenueBase Database · checked Sep 20, 2026
12Strong evidencePortland, OR, United StatesHQ checked Sep 20, 202651-20078 contacts →

Strong evidence

“Markowitz Herbold is a litigation law firm with offices in Portland, Oregon, and New York City.”

Source: RevenueBase Database · checked Sep 20, 2026
13Strong evidencePortland, OR, United StatesHQ checked Sep 20, 202651-20074 contacts →

Strong evidence

“A Business Law Firm for Modern Times.”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidencePortland, OR, United StatesHQ checked Sep 20, 202611-5065 contacts →

Indirect evidence

“Excellent client service has always been our overarching goal.”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidencePortland, OR, United StatesHQ checked Sep 20, 202611-5056 contacts →

Indirect 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, 2026
16Indirect evidencePortland, OR, United StatesHQ checked Sep 20, 202611-5054 contacts →

Indirect evidence

“Davis Rothwell is your source for Northwest litigation defense.”

Source: RevenueBase Database · checked Sep 20, 2026
17Strong evidencePortland, OR, United StatesHQ checked Sep 20, 202611-5050 contacts →

Strong evidence

“With roots dating back to 1927, Samuels Yoelin Kantor LLP ranks as one of Oregon’s oldest law firms.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidencePortland, OR, United StatesHQ checked Sep 20, 202651-20044 contacts →

Indirect evidence

“Farleigh Wada Witt was founded in 1981 with a goal of providing clients with experienced counsel and representation in all facets of their operations.”

Source: RevenueBase Database · checked Sep 20, 2026
19Strong evidencePortland, OR, United StatesHQ checked Sep 20, 202611-5039 contacts →

Strong evidence

“At Barran Liebman LLP our experienced and dedicated attorneys focus on representing employers and finding solutions for their employment law and labor management needs.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidencePortland, OR, United StatesHQ checked Sep 20, 202611-5039 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, 2026
21Indirect evidencePortland, OR, United StatesHQ checked Sep 20, 202611-5036 contacts →

Indirect evidence

“Chock Barhoum LLP is one of the preeminent litigation firms in the Northwest.”

Source: RevenueBase Database · checked Sep 20, 2026
22Strong evidencePortland, OR, United StatesHQ checked Sep 20, 202611-5035 contacts →

Strong evidence

“At Chenoweth Law Group, P.C, we provide effective advocacy in complex commercial and civil litigation.”

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidencePortland, OR, United StatesHQ checked Sep 20, 202611-5032 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, 2026
24Strong evidencePortland, ME, United StatesHQ checked Sep 20, 202611-5031 contacts →

Strong evidence

“Murray Plumb & Murray is a mid-sized law firm with a reputation for top-notch legal representation of individuals, entrepreneurs, and businesses with ties to Maine.”

Source: RevenueBase Database · checked Sep 20, 2026
25Strong evidencePortland, ME, United StatesHQ checked Sep 20, 202611-5030 contacts →

Strong evidence

“Perkins Thompson is a client-centric, Maine-based law firm that works with businesses, institutions, and individuals to realize their goals.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 146 business law firms based in Portland, United States

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Business law firms based in Portland, United States at a glance

As of Sep 20, 2026
60.0%Verified-email coverage
30.6Average contacts per company
1-10Median size (employees)
837.0%Largest-city concentration · New York
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
81
11-50
51
51-200
8
201-500
5
501-1,000
1

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 146 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 business law 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 “business law 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 business law 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 business 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 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, 2,680 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.

Business law firms by metro in the United States

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 business law 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 business law firms are there based in Portland, United States?

RevenueBase identified 146 business 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?

Stoel Rives LLP, headquartered in Portland, tops this list with the largest team on record.

Which city has the most business law firms?

New York leads with 1222 headquartered companies, followed by Chicago (563) and Los Angeles (533).

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 2,680 verified decision-maker contacts tracked across these 146 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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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.