Company lists · Data refreshed September 2026

Top 25 H1b visa law firms based in the United States

RevenueBase identified 3,578 h1b visa law firms headquartered in the United States as of September 2026 and tracks 34,464 professional contacts across them, including 15,044 with verified work emails and 9,125 with mobile numbers. New York is the largest hub.

This list covers h1b visa law firms headquartered in the 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 3, 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 3, 2026 86% judged on-target in blind review
3,578Companies
34,464Contacts tracked
15,044Verified emails
9,125Mobile numbers
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The 25 largest h1b visa law firms based in the United States

Ranked by team size
Top 25 of 3,578 h1b visa law firms based in the United States, ranked by team size, largest first. Data refreshed Sep 3, 2026. RevenueBase Smart Search rates how each company's information relates to h1b visa 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 evidenceNew York, NY, United StatesHQ checked Sep 3, 20265,001-10,0006,188 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 3, 2026
2Partial evidenceRichardson, CA, United StatesHQ checked Sep 3, 20261,001-5,0001,134 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 3, 2026
3Partial evidenceDublin, OH, United StatesHQ checked Sep 3, 20261,001-5,000800 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 3, 2026
4Partial evidenceWashington, DC, United StatesHQ checked Sep 3, 20261,001-5,000776 contacts →

Partial evidence

“CIBT is the leading global provider of immigration and visa services for corporations and individuals with over 1,600 expert immigration and visa professionals, attorneys and…”

Source: RevenueBase Database · checked Sep 3, 2026
5Partial evidenceSan Antonio, TX, United StatesHQ checked Sep 3, 2026201-500655 contacts →

Partial evidence

“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.”

Source: RevenueBase Database · checked Sep 3, 2026
6Indirect evidenceOrlando, FL, United StatesHQ checked Sep 3, 2026201-500374 contacts →

Indirect evidence

“Colombo & Hurd is a U.S.”

Source: RevenueBase Database · checked Sep 3, 2026
7Indirect evidenceSeattle, WA, United StatesHQ checked Sep 3, 2026201-500332 contacts →

Indirect evidence

“Boundless is a U.S.”

Source: RevenueBase Database · checked Sep 3, 2026
8Partial evidenceD.c, TX, United StatesHQ checked Sep 3, 2026201-500308 contacts →

Partial evidence

“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.”

Source: RevenueBase Database · checked Sep 3, 2026
9Indirect evidenceDallas, NM, United StatesHQ checked Sep 3, 2026201-500240 contacts →

Indirect evidence

“We love business.”

Source: RevenueBase Database · checked Sep 3, 2026
10Partial evidenceTroy, MI, United StatesHQ checked Sep 3, 2026201-500233 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 3, 2026
11Strong evidenceWashington, DC, United StatesHQ checked Sep 3, 2026201-500198 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 3, 2026
12Indirect evidenceArlington, CA, United StatesHQ checked Sep 3, 2026201-500185 contacts →

Indirect evidence

“Our goal is to uncomplicate the complicated.”

Source: RevenueBase Database · checked Sep 3, 2026
13Partial evidencePhiladelphia, DC, United StatesHQ checked Sep 3, 202651-200121 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 3, 2026
14Partial evidenceBethesda, MD, United StatesHQ checked Sep 3, 202651-200111 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 3, 2026
15Partial evidenceWyoming, MI, United StatesHQ checked Sep 3, 202651-20077 contacts →

Partial evidence

“Law firm focused on Immigration matters.”

Source: RevenueBase Database · checked Sep 3, 2026
16Partial evidenceChicago, IL, United StatesHQ checked Sep 3, 202651-20075 contacts →

Partial evidence

“HSPRD is a full-service law firm built on strong client relationships and supported by smart, skilled attorneys.”

Source: RevenueBase Database · checked Sep 3, 2026
17Partial evidenceDallas, TX, United StatesHQ checked Sep 3, 202651-20060 contacts →

Partial evidence

“Bay Immigration law is a full service immigration law firm.”

Source: RevenueBase Database · checked Sep 3, 2026
18Partial evidenceSan Diego, CA, United StatesHQ checked Sep 3, 202651-20060 contacts →

Partial evidence

“We are a law firm, licensed in the United States, specializing in immigration law.”

Source: RevenueBase Database · checked Sep 3, 2026
19Partial evidenceNew York, NY, United StatesHQ checked Sep 3, 202651-20058 contacts →

Partial evidence

“The team behind the Law Firm is an incredible one.”

Source: RevenueBase Database · checked Sep 3, 2026
20Partial evidenceReston, VA, United StatesHQ checked Sep 3, 202651-20051 contacts →

Partial evidence

“Goel & Anderson is an award-winning corporate immigration law firm, focused on the essential business role that immigrants can play in innovation, job growth, and economic…”

Source: RevenueBase Database · checked Sep 3, 2026
21Partial evidenceSan Antonio, TX, United StatesHQ checked Sep 3, 202651-20044 contacts →

Partial evidence

“Providing exceptional and cost-effective legal assistance in the field of immigration since 1976, DMCA is a premier full-service immigration law firm.”

Source: RevenueBase Database · checked Sep 3, 2026
22Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 3, 202651-20037 contacts →

Partial evidence

“Kostiv Cardinal is an immigration law firm based in Los Angeles, Ontario (California), Silver Spring, Arlington (Virginia), and Miami, dedicated to guiding individuals and…”

Source: RevenueBase Database · checked Sep 3, 2026
23Partial evidenceElmwood Park, TX, United StatesHQ checked Sep 3, 202651-20033 contacts →

Partial evidence

“Onal Gallant is a multi-specialist law firm providing comprehensive legal services across various practice areas.”

Source: RevenueBase Database · checked Sep 3, 2026
24Partial evidenceGardena, CA, United StatesHQ checked Sep 3, 202651-20029 contacts →

Partial evidence

“Los Angeles Legal Advocates is a law firm dedicated to helping our clients fight for their rights.”

Source: RevenueBase Database · checked Sep 3, 2026
25Indirect evidenceEdison, NJ, United StatesHQ checked Sep 3, 2026501-1,00028 contacts →

Indirect evidence

“Mpower Logic Inc company is an E-Verified IT staffing and consulting firm based in Edison, New Jersey and Detroit, Michigan.”

Source: RevenueBase Database · checked Sep 3, 2026

Showing 25 of 3,578 h1b visa law firms based in the United States

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H1b visa law firms based in the United States at a glance

As of Sep 3, 2026
43.7%Verified-email coverage
26.5%Mobile-number coverage
9.6Average contacts per company
1-10Median size (employees)
8.3%Largest-city concentration · New York
Sep 3, 2026Page data refreshed

Companies by employee count

1-10
2,581
11-50
788
51-200
140
201-500
18
501-1,000
3
1,001-5,000
4
5,001-10,000
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 h1b visa 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 the United States whose own description of what they do matches “h1b visa 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 h1b visa 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 h1b visa law firms, and records with no verified work email. Companies headquartered outside United States 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, 15,044 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 3, 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.

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 h1b visa 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 h1b visa law firms are there based in the United States?

RevenueBase identified 3,578 h1b visa law firms headquartered in the 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?

Fragomen, headquartered in New York, tops this list with the largest team on record.

Which city has the most h1b visa law firms?

New York leads with 298 headquartered companies, followed by Houston (132) and Los Angeles (111).

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 15,044 verified decision-maker contacts tracked across these 3,578 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 3, 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.