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, how directly it supports the match, 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 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.
The 25 largest h1b visa law firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,188 | ||||
“Fragomen is the leading global immigration services firm worldwide.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,134 | ||||
“BAL is a corporate immigration law firm that powers human achievement through immigration expertise, people-centered client services and innovative technology.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | 800 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | 776 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | 655 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 6 | 374 | ||||
“Colombo & Hurd is a U.S.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | 332 | ||||
“Boundless is a U.S.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | 308 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | Mayer LLPIndirect evidence | 240 | |||
“We love business.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | 233 | ||||
“Ellis Porter is a law firm focused on managing the immigration experience for employers and individuals.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | 198 | ||||
“At GovAssist, we are your foremost authority on end-to-end visa applications, consultancy, and immigration law, for personal or professional travel purposes.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 12 | 185 | ||||
“Our goal is to uncomplicate the complicated.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 13 | 121 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 14 | 111 | ||||
“Immigration & Employment Law Firm based in Washington DC Metro area.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 15 | 77 | ||||
“Law firm focused on Immigration matters.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 16 | 75 | ||||
“HSPRD is a full-service law firm built on strong client relationships and supported by smart, skilled attorneys.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 17 | 60 | ||||
“Bay Immigration law is a full service immigration law firm.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 18 | Yousa LAW FirmPartial evidence | 60 | |||
“We are a law firm, licensed in the United States, specializing in immigration law.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 19 | 58 | ||||
“The team behind the Law Firm is an incredible one.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 20 | 51 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 21 | 44 | ||||
“Providing exceptional and cost-effective legal assistance in the field of immigration since 1976, DMCA is a premier full-service immigration law firm.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 22 | 37 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 23 | 33 | ||||
“Onal Gallant is a multi-specialist law firm providing comprehensive legal services across various practice areas.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 24 | LOS Angeles Legal AdvocatesPartial evidence | 29 | |||
“Los Angeles Legal Advocates is a law firm dedicated to helping our clients fight for their rights.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 25 | Mpower Logic INCIndirect evidence | 28 | |||
“Mpower Logic Inc company is an E-Verified IT staffing and consulting firm based in Edison, New Jersey and Detroit, Michigan.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
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, 2026Companies by employee count
Verified emails by last verification
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 evidence 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 SmartSearch, 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.
- 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 an evidence 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.
H1b visa law firms by metro
- H1b visa law firms in New York298
- H1b visa law firms in Houston132
- H1b visa law firms in Los Angeles111
- H1b visa law firms in Miami104
- H1b visa law firms in Chicago92
- H1b visa law firms in Orlando74
- H1b visa law firms in San Francisco65
- H1b visa law firms in Dallas58
Frequently asked
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 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.