Company lists · Data refreshed September 2026

Top 22 H1b visa law firms based in New York, United States

RevenueBase identified 321 h1b visa law firms headquartered in New York, United States as of September 2026 and tracks 8,438 professional contacts across them, including 5,333 with verified work emails and 1,937 with mobile numbers. New York is the largest hub.

This list covers h1b visa law firms headquartered in New York, 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 12, 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 12, 2026 86% judged on-target in blind review
321Companies
8,438Contacts tracked
5,333Verified emails
1,937Mobile numbers
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The 22 largest h1b visa law firms based in New York, United States

Ranked by team size
Top 22 of 321 h1b visa law firms based in New York, United States, ranked by team size, largest first. Data refreshed Sep 12, 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 12, 20265,001-10,0006,245 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 12, 2026
2Partial evidenceNew York, NY, United StatesHQ checked Sep 12, 202611-5088 contacts →

Partial evidence

“Manifest Law is a modern immigration law firm with handpicked attorneys powered by cutting-edge software.”

Source: RevenueBase Database · checked Sep 12, 2026
3Partial evidenceNew York, NY, United StatesHQ checked Sep 12, 202651-20058 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 12, 2026
4Partial evidenceNew York, NY, United StatesHQ checked Sep 12, 202611-5043 contacts →

Partial evidence

“We are an international law firm, comprised of talented and dedicated lawyers, recognized as the premier firm serving the US-China business corridor.”

Source: RevenueBase Database · checked Sep 12, 2026
5Partial evidenceNew York, NY, United StatesHQ checked Sep 12, 202611-5042 contacts →

Partial evidence

“Barst & Mukamal LLP is an immigration law firm based in New York City.”

Source: RevenueBase Database · checked Sep 12, 2026
6Indirect evidenceNew York, NY, United StatesHQ checked Sep 12, 202611-5041 contacts →

Indirect evidence

“Founded over 45 years ago, KM & M represents businesses ranging from Fortune 500 companies, to start-ups, to mom-and-pop shops with respect to all labor, employment, and…”

Source: RevenueBase Database · checked Sep 12, 2026
7Indirect evidenceNew York, NY, United StatesHQ checked Sep 12, 202651-20038 contacts →

Indirect evidence

“History The firm was founded in 1958 by Harry Spar, one of the original members of the American Immigration Lawyers Association, and concentrated initially on United States…”

Source: RevenueBase Database · checked Sep 12, 2026
8Partial evidenceNew York, NY, United StatesHQ checked Sep 12, 202611-5035 contacts →

Partial evidence

“Wildes & Weinberg, P.C, perhaps the United States' premier law firm concentrating in the immigration and nationality field, grew out of the practice of Leon Wildes, Esq, a…”

Source: RevenueBase Database · checked Sep 12, 2026
9Partial evidenceNew York, NY, United StatesHQ checked Sep 12, 202611-5035 contacts →

Partial evidence

“JEELANI LAW FIRM, PLC is a national immigration law practice which represents individuals throughout the U.S.”

Source: RevenueBase Database · checked Sep 12, 2026
10Indirect evidenceNew York, NY, United StatesHQ checked Sep 12, 202611-5029 contacts →

Indirect evidence

“Our founder, Arthur Pollack, was born in Yonkers, NY but moved to Germany as a young child.”

Source: RevenueBase Database · checked Sep 12, 2026
11Indirect evidenceNew York, NY, United StatesHQ checked Sep 12, 20261-1026 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 12, 2026
12Partial evidenceNew York, NY, United StatesHQ checked Sep 12, 202611-5022 contacts →

Partial evidence

“Welcome Neil Weinrib & Associates is one of the leading law firms in the United States, concentrating in immigration legal practice as well as real estate, corporate, business…”

Source: RevenueBase Database · checked Sep 12, 2026
13Partial evidenceNew York, NY, United StatesHQ checked Sep 12, 20261-1020 contacts →

Partial evidence

“The Margolis Law Firm was founded in 1982 by Jeffrey A.”

Source: RevenueBase Database · checked Sep 12, 2026
14Partial evidenceNew York, NY, United StatesHQ checked Sep 12, 202611-5020 contacts →

Partial evidence

“Dell'Ome Law Firm is based in New York (NY).”

Source: RevenueBase Database · checked Sep 12, 2026
15Partial evidenceNew York, NY, United StatesHQ checked Sep 12, 202611-5020 contacts →

Partial evidence

“Demidchik Law Firm is a rapidly growing mid-sized law firm.”

Source: RevenueBase Database · checked Sep 12, 2026
16Indirect evidenceNew York, NY, United StatesHQ checked Sep 12, 20261-1020 contacts →

Indirect evidence

“With offices in New York City (New York), Buffalo (New York), Fort Erie (Canada) and New Delhi (India), Malik & Popiel, P.C, specializes in four-core practice areas, which…”

Source: RevenueBase Database · checked Sep 12, 2026
17Partial evidenceNew York, NY, United StatesHQ checked Sep 12, 202611-5018 contacts →

Partial evidence

“Klug Law Firm PLLC is headquartered in New York City, servicing clients throughout the entire United States and globally.”

Source: RevenueBase Database · checked Sep 12, 2026
18Partial evidenceNew York, NY, United StatesHQ checked Sep 12, 202651-20018 contacts →

Partial evidence

“Davies & Associates is a global, immigration-focused law firm that helps clients from all over the world set up new and exciting businesses in the United States and procure the…”

Source: RevenueBase Database · checked Sep 12, 2026
19Indirect evidenceNew York, NY, United StatesHQ checked Sep 12, 202651-20017 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 12, 2026
20Partial evidenceNew York, NY, United StatesHQ checked Sep 12, 202611-5016 contacts →

Partial evidence

“Lehach Filippa is the leading immigration law firm for creative professionals.”

Source: RevenueBase Database · checked Sep 12, 2026
21Indirect evidenceNew York, NY, United StatesHQ checked Sep 12, 20261-1016 contacts →

Indirect evidence

“O’Brien & Associates is a U.S.”

Source: RevenueBase Database · checked Sep 12, 2026
22Indirect evidenceNew York, NY, United StatesHQ checked Sep 12, 202611-5015 contacts →

Indirect evidence

“Mona Shah & Associates Global (MSA Global) is a full-service U.S.”

Source: RevenueBase Database · checked Sep 12, 2026

Showing 22 of 321 h1b visa law firms based in New York, United States

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H1b visa law firms based in New York, United States at a glance

As of Sep 12, 2026
63.2%Verified-email coverage
23.0%Mobile-number coverage
26.3Average contacts per company
1-10Median size (employees)
92.8%Largest-city concentration · New York
Sep 12, 2026Page data refreshed

Companies by employee count

1-10
231
11-50
70
51-200
18
201-500
1
5,001-10,000
1

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

Company record updated

Median 63.0d

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 New York, 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 New York 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, 5,333 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 12, 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 New York, United States?

RevenueBase identified 321 h1b visa law firms headquartered in New York, 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 5,333 verified decision-maker contacts tracked across these 321 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 12, 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.