Company lists · Data refreshed September 2026

Top 25 Union compliance law firms based in Portland, United States

Name: Union compliance 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 29, 2026 60 companies tracked

RevenueBase identified 60 union compliance law firms headquartered in Portland, United States as of September 2026 and tracks 1,351 professional contacts across them, including 902 with verified work emails. Across the United States, New York is the largest hub for this category (447 companies); Portland has 60.

This list covers union compliance 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 29, 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 29, 2026 86% judged on-target in blind review

60Companies

1,351Contacts tracked

902Verified emails

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The 25 largest union compliance law firms based in Portland, United States

Ranked by team size

Top 25 of 60 union compliance law firms based in Portland, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to union compliance 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Bernstein Shur	Partial evidence	Portland, ME, United StatesHQ checked Sep 29, 2026	201-500	245 contacts →
	Partial evidence “We are a New England-based law firm that advises clients across the U.S.” Source: RevenueBase Database · checked Sep 29, 2026
2	Tonkon Torp LLP	Partial evidence	Portland, OR, United StatesHQ checked Sep 29, 2026	51-200	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 29, 2026
3	Norman, Hanson & Detroy, LLC	Partial evidence	Portland, ME, United StatesHQ checked Sep 29, 2026	51-200	93 contacts →
	Partial evidence “Norman, Hanson & DeTroy, LLC, is a highly respected law firm in Maine with a widely diversified practice.” Source: RevenueBase Database · checked Sep 29, 2026
4	SBH Legal	Indirect evidence	Portland, OR, United StatesHQ checked Sep 29, 2026	51-200	91 contacts →
	Indirect evidence “SBH Legal is a litigation firm emphasizing representation of employers, insurers and claims administrators in all matters relating to employment including workers’ compensation…” Source: RevenueBase Database · checked Sep 29, 2026
5	Hart Wagner LLP	Indirect evidence	Portland, OR, United StatesHQ checked Sep 29, 2026	51-200	67 contacts →
	Indirect evidence “In this era of mediation and arbitration, experienced trial attorneys are becoming increasingly rare.” Source: RevenueBase Database · checked Sep 29, 2026
6	Cosgrave Vergeer Kester LLP	Indirect evidence	Portland, OR, United StatesHQ checked Sep 29, 2026	11-50	65 contacts →
	Indirect evidence “Excellent client service has always been our overarching goal.” Source: RevenueBase Database · checked Sep 29, 2026
7	Lindsay Hart LLP	Indirect evidence	Portland, OR, United StatesHQ checked Sep 29, 2026	11-50	56 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 29, 2026
8	Davis Rothwell Earle & Xóchihua PC	Indirect evidence	Portland, OR, United StatesHQ checked Sep 29, 2026	11-50	54 contacts →
	Indirect evidence “Davis Rothwell is your source for Northwest litigation defense.” Source: RevenueBase Database · checked Sep 29, 2026
9	Samuels Yoelin Kantor LLP	Partial evidence	Portland, OR, United StatesHQ checked Sep 29, 2026	11-50	50 contacts →
	Partial 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 29, 2026
10	Barran Liebman LLP	Partial evidence	Portland, OR, United StatesHQ checked Sep 29, 2026	11-50	39 contacts →
	Partial 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 29, 2026
11	Chock Barhoum	Indirect evidence	Portland, OR, United StatesHQ checked Sep 29, 2026	11-50	36 contacts →
	Indirect evidence “Chock Barhoum LLP is one of the preeminent litigation firms in the Northwest.” Source: RevenueBase Database · checked Sep 29, 2026
12	Chenoweth LAW Group	Partial evidence	Portland, OR, United StatesHQ checked Sep 29, 2026	11-50	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 29, 2026
13	Wyse Kadish LLP	Indirect evidence	Portland, OR, United StatesHQ checked Sep 29, 2026	11-50	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 29, 2026
14	Perkins Thompson	Partial evidence	Portland, ME, United StatesHQ checked Sep 29, 2026	11-50	30 contacts →
	Partial 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 29, 2026
15	JJH LAW Firm Pearl District	Partial evidence	Portland, OR, United StatesHQ checked Sep 29, 2026	1-10	26 contacts →
	Partial 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 29, 2026
16	Allegiant LAW LLP	Partial evidence	Portland, OR, United StatesHQ checked Sep 29, 2026	11-50	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 29, 2026
17	Brownstein Rask	Partial evidence	Portland, OR, United StatesHQ checked Sep 29, 2026	11-50	18 contacts →
	Partial evidence “Brownstein Rask LLP has been a prominent midsize Portland law firm since its founding over 50 years ago.” Source: RevenueBase Database · checked Sep 29, 2026
18	Curtis Thaxter LLC	Indirect evidence	Portland, ME, United StatesHQ checked Sep 29, 2026	11-50	16 contacts →
	Indirect evidence “The firm was founded in 1975 by a group of attorneys led by former Maine Governor and U.S.” Source: RevenueBase Database · checked Sep 29, 2026
19	Larkins Vacura Kayser LLP	Indirect evidence	Portland, OR, United StatesHQ checked Sep 29, 2026	11-50	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 29, 2026
20	Richardson Whitman	Partial evidence	Portland, ME, United StatesHQ checked Sep 29, 2026	11-50	13 contacts →
	Partial evidence “Richardson Whitman is a litigation boutique with an additional focus in labor and employment law.” Source: RevenueBase Database · checked Sep 29, 2026
21	Bennett Hartman Attorneys At Law, LLP	Indirect evidence	Portland, OR, United StatesHQ checked Sep 29, 2026	11-50	11 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
22	Robinson, Kriger & Mccallum	Partial evidence	Portland, ME, United StatesHQ checked Sep 29, 2026	11-50	10 contacts →
	Partial evidence “The law firm of Robinson, Kriger & McCallum provides individuals and businesses with advice, representation, and legal services designed to resolve outstanding legal matters in a…” Source: RevenueBase Database · checked Sep 29, 2026
23	Carr Butterfield, LLP	Partial evidence	Portland, OR, United StatesHQ checked Sep 29, 2026	1-10	10 contacts →
	Partial evidence “Carr Butterfield, LLP is a client-focused law firm near Portland, Oregon.” Source: RevenueBase Database · checked Sep 29, 2026
24	Crispin Hannon, LLC	Partial evidence	Portland, OR, United StatesHQ checked Sep 29, 2026	11-50	9 contacts →
	Partial evidence “Crispin Hannon, LLC is a Portland-based litigation firm representing individuals and businesses throughout Oregon in employment law, workers’ compensation, personal injury, civil…” Source: RevenueBase Database · checked Sep 29, 2026
25	Tomasi Bragar Dubay	Indirect evidence	Portland, OR, United StatesHQ checked Sep 29, 2026	1-10	9 contacts →
	Indirect evidence “Combined our firm has more than 100 years of legal expertise finding highly effective, efficient solutions for our clients and providing outstanding client service.” Source: RevenueBase Database · checked Sep 29, 2026

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: union compliance law 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 union compliance law firms.
Partial evidence: Its own public description names part of union compliance law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name union compliance law 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 union compliance law firms based in Portland, United States

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Union compliance law firms based in Portland, United States at a glance

As of Sep 29, 2026

66.8%Verified-email coverage

22.5Average contacts per company

11-50Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 union compliance 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 “union compliance 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 union compliance 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 union compliance 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, 902 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 29, 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.

Union compliance 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 union compliance 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 union compliance law firms are there based in Portland, United States?

RevenueBase identified 60 union compliance 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?

Bernstein Shur, headquartered in Portland, tops this list with the largest team on record.

Which city in the United States has the most union compliance law firms?

New York leads the United States with 447 headquartered companies, followed by Los Angeles (327) and Chicago (250). Portland has 60.

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 902 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 29, 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.