Company lists · Data refreshed September 2026

Top 25 Big six law firms based in Seattle, United States

Name: Big six law firms based in Seattle, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 100 companies tracked

RevenueBase identified 100 big six law firms headquartered in Seattle, United States as of September 2026 and tracks 5,771 professional contacts across them, including 3,647 with verified work emails. Across the United States, New York is the largest hub for this category (668 companies); Seattle has 100.

This list covers big six law firms headquartered in Seattle, 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 23, 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 23, 2026 86% judged on-target in blind review

100Companies

5,771Contacts tracked

3,647Verified emails

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The 25 largest big six law firms based in Seattle, United States

Ranked by team size

Top 25 of 100 big six law firms based in Seattle, United States, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to big six 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	Perkins Coie	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	1,001-5,000	2,746 contacts →
	Indirect evidence “Perkins Coie has combined with Ashurst to form Ashurst Perkins Coie.” Source: RevenueBase Database · checked Sep 23, 2026
2	Foster Garvey PC	Partial evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	201-500	253 contacts →
	Partial evidence “Foster Garvey PC is a full-service law firm serving several of the most influential and innovative companies and governments in the country.” Source: RevenueBase Database · checked Sep 23, 2026
3	Lane Powell PC	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	201-500	242 contacts →
	Indirect evidence “Effective January 1, 2025, Lane Powell has combined with Ballard Spahr to form a nationally recognized firm of more than 750 lawyers across 18 U.S.” Source: RevenueBase Database · checked Sep 23, 2026
4	Williams Kastner	Partial evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	51-200	198 contacts →
	Partial evidence “Williams Kastner is a Pacific Northwest law firm founded in 1929, with more than 65 attorneys in Seattle, Portland, and Spokane.” Source: RevenueBase Database · checked Sep 23, 2026
5	Seed IP LAW Group	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	51-200	140 contacts →
	Indirect evidence “Seed IP provides comprehensive legal assistance in all areas of intellectual property, including patents, trademarks, copyrights, trade secrets and unfair competition…” Source: RevenueBase Database · checked Sep 23, 2026
6	Stokes Lawrence, P.S	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	51-200	132 contacts →
	Indirect evidence “With offices in Seattle and Yakima, Washington, Stokes Lawrence represents businesses ranging from small, closely held entities to larger corporations, and the families and…” Source: RevenueBase Database · checked Sep 23, 2026
7	Hagens Berman Sobol Shapiro LLP	Partial evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	51-200	130 contacts →
	Partial evidence “Hagens Berman Sobol Shapiro LLP is an internationally recognized law firm headquartered in Seattle, Washington.” Source: RevenueBase Database · checked Sep 23, 2026
8	Ogden Murphy Wallace	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	51-200	120 contacts →
	Indirect evidence “Ogden Murphy Wallace, P.L.L.C.” Source: RevenueBase Database · checked Sep 23, 2026
9	Christensen O'connor Johnson Kindness Pllc	Partial evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	51-200	84 contacts →
	Partial evidence “Christensen O'Connor Johnson Kindness PLLC (COJK) is a Seattle-based intellectual property law firm founded in 1929.” Source: RevenueBase Database · checked Sep 23, 2026
10	Hillis Clark Martin & Peterson P.S	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	51-200	83 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 23, 2026
11	Summit LAW Group	Partial evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	51-200	74 contacts →
	Partial evidence “Summit Law Group rejected the traditional law firm model and started from scratch to design a modern law firm founded on a single principle: customer service.” Source: RevenueBase Database · checked Sep 23, 2026
12	Corr Cronin LLP	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	51-200	61 contacts →
	Indirect evidence “Corr Cronin handles all aspects of civil litigation, for clients of all sizes (from individuals and regional companies to Fortune 500 corporations), in an array of…” Source: RevenueBase Database · checked Sep 23, 2026
13	Mcnaul Ebel Nawrot & Helgren Pllc	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	11-50	47 contacts →
	Indirect evidence “Since 1995, we've earned our reputation as passionate, knowledgeable advocates across a broad range of litigation and transactional matters.” Source: RevenueBase Database · checked Sep 23, 2026
14	Betts Patterson Mines	Partial evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	11-50	43 contacts →
	Partial evidence “The law firm of Betts Patterson Mines traces its origins to a firm that was founded in 1899.” Source: RevenueBase Database · checked Sep 23, 2026
15	Forsberg & Umlauf, P.S	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	51-200	39 contacts →
	Indirect evidence “As of 2 February 2026, Forsberg & Umlauf is part of Clyde & Co.” Source: RevenueBase Database · checked Sep 23, 2026
16	Skellenger Bender, PS	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	11-50	29 contacts →
	Indirect evidence “Since 1928, Skellenger Bender has provided the highest quality legal services to individuals, families, businesses, and governmental entities.” Source: RevenueBase Database · checked Sep 23, 2026
17	Oles Morrison Rinker & Baker LLP	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	51-200	29 contacts →
	Indirect evidence “With deep roots in the Pacific Northwest and Alaska, Oles Morrison has built a legal practice with a focus on construction, government contracts, commercial litigation and real…” Source: RevenueBase Database · checked Sep 23, 2026
18	Harris Sliwoski LLP	Partial evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	11-50	27 contacts →
	Partial evidence “When expanding globally, businesses need a law firm that understands both local intricacies and worldwide opportunities.Harris Sliwoski delivers cross-border legal services…” Source: RevenueBase Database · checked Sep 23, 2026
19	Keating, Bucklin & Mccormack, Inc., P.S	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	11-50	26 contacts →
	Indirect evidence “Keating, Bucklin & McCormack, Inc, P.S.” Source: RevenueBase Database · checked Sep 23, 2026
20	HWS LAW Group	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	11-50	25 contacts →
	Indirect evidence “Holt Woods & Scisciani LLP is known for creative solutions and achieving great results for our clients throughout Washington, Oregon, Idaho and Alaska.” Source: RevenueBase Database · checked Sep 23, 2026
21	Gordon Tilden Thomas & Cordell LLP	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	11-50	24 contacts →
	Indirect evidence “At GTTC we limit our practice to complex civil litigation and trial work.” Source: RevenueBase Database · checked Sep 23, 2026
22	Reed Longyear Malnati Corwin & Burnett Pllc	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	11-50	22 contacts →
	Indirect evidence “For more than 65 years, Reed Longyear has served clients from all walks of life with reasonable rates, integrity and accessibility.” Source: RevenueBase Database · checked Sep 23, 2026
23	Lowe Graham Jones Pllc	Partial evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	11-50	22 contacts →
	Partial evidence “Lowe Graham Jones is a full-service intellectual property law firm with offices in Seattle, Washington.” Source: RevenueBase Database · checked Sep 23, 2026
24	Folio LAW Group Pllc	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	11-50	20 contacts →
	Indirect evidence “Smart Lawyers.” Source: RevenueBase Database · checked Sep 23, 2026
25	Aeon LAW	Partial evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	1-10	19 contacts →
	Partial evidence “AEON Law is a high technology intellectual property law firm focused on patent, trademark, copyright and related IP.” Source: RevenueBase Database · checked Sep 23, 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: big six 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 big six law firms.
Partial evidence: Its own public description names part of big six law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name big six 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 100 big six law firms based in Seattle, United States

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Big six law firms based in Seattle, United States at a glance

As of Sep 23, 2026

63.2%Verified-email coverage

57.7Average contacts per company

1-10Median size (employees)

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Seattle, so it is reported there. Company counts and contact totals on this page are exact for Seattle, over 100 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 big six 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 Seattle, United States whose own description of what they do matches “big six 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 big six 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 big six law firms, and records with no verified work email. Companies headquartered outside Seattle 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, 3,647 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 23, 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.

Big six 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 big six 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 big six law firms are there based in Seattle, United States?

RevenueBase identified 100 big six law firms headquartered in Seattle, 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?

Perkins Coie, headquartered in Seattle, tops this list with the largest team on record.

Which city in the United States has the most big six law firms?

New York leads the United States with 668 headquartered companies, followed by Chicago (344) and Los Angeles (340). Seattle has 100.

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 3,647 verified decision-maker contacts tracked across these 100 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 23, 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.