Company lists · Data refreshed September 2026

Top 25 E-commerce law firms based in Washington, United States

Name: E-commerce law firms based in Washington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 58 companies tracked

RevenueBase identified 58 e-commerce law firms headquartered in Washington, United States as of September 2026 and tracks 3,049 professional contacts across them, including 2,041 with verified work emails. Across the United States, New York is the largest hub for this category (193 companies); Washington has 58.

This list covers e-commerce law firms headquartered in Washington, 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 28, 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 28, 2026 86% judged on-target in blind review

58Companies

3,049Contacts tracked

2,041Verified emails

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The 25 largest e-commerce law firms based in Washington, United States

Ranked by team size

Top 25 of 58 e-commerce law firms based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to e-commerce 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	Venable LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,790 contacts →
	Partial evidence “Committed to Your Success – As a law firm of more than 900 professionals, Venable delivers legal services globally in every area of regulatory compliance, government affairs…” Source: RevenueBase Database · checked Sep 28, 2026
2	Wiley Rein LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	501-1,000	576 contacts →
	Indirect evidence “Founded in 1983, Wiley is a dominant presence in the nation’s capital.” Source: RevenueBase Database · checked Sep 28, 2026
3	Wilkinson Barker Knauer, LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	138 contacts →
	Partial evidence “With offices in Washington, DC, Denver, Colorado, and Austin, Texas, Wilkinson Barker Knauer (WBK) is the nation’s largest stand-alone communications and technology law firm.” Source: RevenueBase Database · checked Sep 28, 2026
4	Rothwell Figg	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	94 contacts →
	Partial evidence “Rothwell Figg is a forward-thinking, client-focused law firm practicing at the convergence of intellectual property, litigation, and technology.” Source: RevenueBase Database · checked Sep 28, 2026
5	Zwillgen	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	72 contacts →
	Partial evidence “ZwillGen is a boutique law firm specializing in technology and privacy law.” Source: RevenueBase Database · checked Sep 28, 2026
6	Pilieromazza Pllc	Strong evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	70 contacts →
	Strong evidence “PilieroMazza – a business law firm – serves as a strategic partner to government contractors and commercial businesses from across the United States in numerous industries.” Source: RevenueBase Database · checked Sep 28, 2026
7	Oppenheim Zebrak, LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	40 contacts →
	Indirect evidence “O+Z is a dynamic litigation boutique founded by attorneys with extensive experience protecting content and brands.” Source: RevenueBase Database · checked Sep 28, 2026
8	Staas & Halsey LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	33 contacts →
	Indirect evidence “Staas & Halsey LLP has provided clients with intellectual property protection and technical expertise since 1971.” Source: RevenueBase Database · checked Sep 28, 2026
9	Ifrah LAW	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	18 contacts →
	Partial evidence “Ifrah Law operates at the cutting edge of matters involving the intersection of business and the internet.” Source: RevenueBase Database · checked Sep 28, 2026
10	Cogent LAW	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	18 contacts →
	Partial evidence “Cogent is a full-service business law firm serving clients throughout the United States.” Source: RevenueBase Database · checked Sep 28, 2026
11	Veritas LAW	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	16 contacts →
	Partial evidence “A full-service business law firm, Veritas Law has expertise in corporate and transactional law, litigation, and licensing.” Source: RevenueBase Database · checked Sep 28, 2026
12	MEI & Mark LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	13 contacts →
	Partial evidence “Founded in February 2009, Mei & Mark LLP is a minority-owned law firm based in Washington, DC, and has been recognized as one of the Go-To Law Firms at the Top 500 Companies by…” Source: RevenueBase Database · checked Sep 28, 2026
13	Levine, Blaszak, Block & Boothby, LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	13 contacts →
	Indirect evidence “Since it was founded in 1993, LB3 has been the leading firm guiding large customers through a maze of legal, technical, financial, and regulatory issues to close world-class…” Source: RevenueBase Database · checked Sep 28, 2026
14	Akrivis LAW Group, Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	10 contacts →
	Partial evidence “A Washington, DC based law firm with offices in New York and Miami focusing on international trade compliance & enforcement, white collar defense & litigation, international…” Source: RevenueBase Database · checked Sep 28, 2026
15	Lutzker & Lutzker LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	10 contacts →
	Indirect evidence “In 1998 Arnold Lutzker and Susan Lutzker founded Lutzker & Lutzker LLP with the vision of a small, dynamic practice that would specialize in digital age legal issues affecting the…” Source: RevenueBase Database · checked Sep 28, 2026
16	Greenberg & Lieberman, LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	7 contacts →
	Partial evidence “Intellectual Property Law Firm.” Source: RevenueBase Database · checked Sep 28, 2026
17	Shruti LAW Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	6 contacts →
	Partial evidence “Shruti Law PLLC® is a Law Firm Headquartered in Washington, DC Shruti Costales is the sole owner and founder of Shruti Law PLLC®.” Source: RevenueBase Database · checked Sep 28, 2026
18	Mcintyre & Lemon, Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “McIntyre & Lemon, PLLC helps clients efficiently navigate the complex maze of federal and state laws and regulations.” Source: RevenueBase Database · checked Sep 28, 2026
19	Washington Global LAW Group Pllc	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Indirect evidence “Companies, associations, and their managers confront a maze of administrative, legislative, and legal hurdles, both here in the U.S.” Source: RevenueBase Database · checked Sep 28, 2026
20	Combs & Taylor LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “The difference between us and other law firms is that, to our clients, we are more than lawyers.” Source: RevenueBase Database · checked Sep 28, 2026
21	Potomac LAW Group	Indirect evidence	Washington, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
22	Honos LAW Pllc	Indirect evidence	Washington, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “If you have been sued, or you want to sue a party that has harmed you, we can help.” Source: RevenueBase Database · checked Sep 28, 2026
23	Hillyer Legal, Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “Hillyer Legal provides best-in-class legal representation in all sectors of intellectual property law.” Source: RevenueBase Database · checked Sep 28, 2026
24	Cassidy LAW Pllc	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “We work with pioneering organizations who move fast, think big, and solve hard problems.” Source: RevenueBase Database · checked Sep 28, 2026
25	Alprin LAW	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	2 contacts →
	Partial evidence “ALPRIN LAW is a company based out of 1260 21st St NW, Washington, Washington DC, United States.” Source: RevenueBase Database · checked Sep 28, 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: e-commerce 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 e-commerce law firms.
Partial evidence: Its own public description names part of e-commerce law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name e-commerce 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 58 e-commerce law firms based in Washington, United States

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E-commerce law firms based in Washington, United States at a glance

As of Sep 28, 2026

66.9%Verified-email coverage

52.6Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 58 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 e-commerce 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 Washington, United States whose own description of what they do matches “e-commerce 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 e-commerce 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 e-commerce law firms, and records with no verified work email. Companies headquartered outside Washington 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, 2,041 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 28, 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.

E-commerce 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 e-commerce 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 e-commerce law firms are there based in Washington, United States?

RevenueBase identified 58 e-commerce law firms headquartered in Washington, 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?

Venable LLP, headquartered in Washington, tops this list with the largest team on record.

Which city in the United States has the most e-commerce law firms?

New York leads the United States with 193 headquartered companies, followed by Los Angeles (88) and Chicago (75). Washington has 58.

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 2,041 verified decision-maker contacts tracked across these 58 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 28, 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.