Company lists · Data refreshed September 2026

Top 25 Work permit law firms based in the United States

RevenueBase identified 3,737 company matches for work permit law firms associated with the United States as of September 2026 and tracks 35,556 professional contacts across them, including 15,862 with verified work emails. New York is the largest hub.

This list covers company matches for work permit law firms associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 29, 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 RevenueBase SmartSearch · Exact Recorded Sep 29, 2026 How this list was built
3,737Companies
35,556Contacts tracked
15,862Verified emails
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The 25 largest work permit law firms based in the United States

Ranked by team size
Top 25 of 3,737 company matches for work permit law firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNew York, NY, United StatesHQ recorded Sep 29, 20265,001-10,0006,245 contacts →

Exact match

“Fragomen is the leading global immigration services firm worldwide.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchRichardson, TX, United StatesHQ recorded Sep 29, 20261,001-5,0001,130 contacts →

Exact match

“BAL is a corporate immigration law firm that powers human achievement through immigration expertise, people-centered client services and innovative technology.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchDublin, OH, United StatesHQ recorded Sep 29, 20261,001-5,000814 contacts →

Exact match

“We are one of the nation’s most experienced law firms dedicated to delivering strategic immigration solutions-especially in complex and high-stakes cases-so our clients can move…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchSan Antonio, TX, United StatesHQ recorded Sep 29, 2026201-500658 contacts →

Exact match

“Alonso & Alonso is a distinguished immigration law firm with a rich history of providing expert legal services in navigating the complexities of the U.S.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchChicago, IL, United StatesHQ recorded Sep 29, 2026501-1,000414 contacts →

Exact match

“Envoy Global is a leading corporate immigration services provider committed to delivering a better way for companies to manage global immigration.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchTukwila, WA, United StatesHQ recorded Sep 29, 2026501-1,000388 contacts →

Exact match

“Alexandra Lozano Immigration Law transforms the lives of immigrants and their families!”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchOrlando, FL, United StatesHQ recorded Sep 29, 2026201-500377 contacts →

Exact match

“At Colombo & Hurd, we help professionals, founders, and investors build their future in the United States.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchSeattle, WA, United StatesHQ recorded Sep 29, 2026201-500335 contacts →

Exact match

“Boundless is a U.S.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchD.c, United StatesHQ recorded Sep 29, 2026201-500305 contacts →

Exact match

“The Mendoza Law Firm, LLC, is a US-based law firm dedicated to helping immigrants obtain work permits and permanent legal residences on American soil.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchDetroit, MI, United StatesHQ recorded Sep 29, 202651-200249 contacts →

Exact match

“The firm was co-founded in 1969 by Richard Kitch and Richard F.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchTroy, MI, United StatesHQ recorded Sep 29, 2026201-500235 contacts →

Exact match

“Ellis Porter is a law firm focused on managing the immigration experience for employers and individuals.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchSpokane Valley, WA, United StatesHQ recorded Sep 29, 2026n/a232 contacts →

Exact match

“Eastern Washington law firm devoted to helping and protecting immigrants.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchWashington, DC, United StatesHQ recorded Sep 29, 2026201-500214 contacts →

Exact match

“At GovAssist, we are your foremost authority on end-to-end visa applications, consultancy, and immigration law, for personal or professional travel purposes.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchSanta Monica, NY, United StatesHQ recorded Sep 29, 202651-200190 contacts →

Exact match

“WR Immigration is a leading global immigration law firm delivering innovative technology, high-touch legal services, and consistent, flawless execution.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchGreenville, United StatesHQ recorded Sep 29, 202651-200187 contacts →

Exact match

“Inmigración al Día es un equipo multidisciplinario conformado por Abogados y Asistentes Legales preparados en asuntos migratorios para ayudar a la comunidad hispana a obtener un…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchArlington, VA, United StatesHQ recorded Sep 29, 2026201-500185 contacts →

Exact match

“Our goal is to uncomplicate the complicated.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchHouston, TX, United StatesHQ recorded Sep 29, 2026n/a182 contacts →

Exact match

“Manuel Solis Law Firm focuses on helping immigrants become U.S.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchSan Francisco, CA, United StatesHQ recorded Sep 29, 2026n/a166 contacts →

Exact match

“The Law Office of Robert B.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchHouston, TX, United StatesHQ recorded Sep 29, 202651-200139 contacts →

Exact match

“Foster is a leading global immigration law firm dedicated to helping employers and individuals obtain nonimmigrant and immigrant work visas and permanent resident options…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchFairfax, VA, United StatesHQ recorded Sep 29, 202651-200127 contacts →

Exact match

“At Murray Osorio PLLC, our mission as a national full-service immigration law firm is to provide superior legal services across the breadth of immigration law throughout the…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchPhiladelphia, PA, United StatesHQ recorded Sep 29, 202651-200121 contacts →

Exact match

“Klasko Immigration Law Partners, LLP is nationally renowned for providing creative solutions to many of the most complex issues in immigration law to multinational corporations…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchBethesda, MD, United StatesHQ recorded Sep 29, 202651-200115 contacts →

Exact match

“Immigration & Employment Law Firm based in Washington DC Metro area.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchTroy, MI, United StatesHQ recorded Sep 29, 202651-20099 contacts →

Exact match

“Fakhoury Global Immigration (FGI) specializes in U.S.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchVero Beach, FL, United StatesHQ recorded Sep 29, 202651-20096 contacts →

Exact match

“At James Immigration Law, we are committed to providing honest and knowledgeable legal advice on all matters concerning or connected to immigration in the United States.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchCharlottesville, VA, United StatesHQ recorded Sep 29, 202651-20088 contacts →

Exact match

“másLabor is a business-to-business consulting firm specializing in employment-based visa programs.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 3,737 work permit law firms based in the United States

See the full list, filter by size, metro and specialty, and access 15,862 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Work permit law firms based in the United States at a glance

As of Sep 29, 2026
44.6%Verified-email coverage
9.5Average contacts per company
1-10Median size (employees)
8.2%Largest-city concentration · New York
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
2,728
11-50
803
51-200
154
201-500
21
501-1,000
4
1,001-5,000
3
5,001-10,000
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,737 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with the United States whose business descriptions match “work permit law firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 15,862 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “work permit law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many work permit law firms are there based in the United States?

RevenueBase identified 3,737 company matches for work permit law firms associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Fragomen tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most work permit law firms?

New York leads with 306 company records, followed by Houston (143) and Los Angeles (119).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 15,862 professional contacts with verified work emails tracked across these 3,737 companies; direct dials are available where recorded.

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 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.