Company lists · Data refreshed September 2026

Top 15 Intellectual property law companies based in Boston, United States

As of September 2026, this directory lists 25 intellectual property law companies across Boston, with 2,091 contacts and 1,190 email addresses. New York is the single most-represented city among the companies on the list.

Intellectual property law companies advise and represent clients on patents, trademarks, copyrights, trade secrets, licensing, and related disputes. This list covers companies that provide legal services focused on protecting, managing, licensing, or enforcing intellectual property rights. Ranked by team size, largest first. Data current as of September 7, 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 7, 2026 86% judged on-target in blind review
25Companies
2,091Contacts tracked
1,190Verified emails
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The 15 largest intellectual property law companies based in Boston, United States

Ranked by team size
Top 15 of 25 intellectual property law companies based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 7, 2026. RevenueBase Smart Search rates how each company's information relates to intellectual property law companies: 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
1Strong evidenceBoston, MA, United StatesHQ checked Sep 7, 20261,001-5,0001,167 contacts →

“As the leading intellectual property law firm, we help innovators change the world through our unmatched litigation, prosecution, and post-grant experience across venues and…”

Source: company website · checked Sep 7, 2026
2Indirect evidenceBoston, MA, United StatesHQ checked Sep 7, 2026201-500428 contacts →

“Wolf, Greenfield & Sacks, P.C.”

Source: company website · checked Sep 7, 2026
3Strong evidenceBoston, MA, United StatesHQ checked Sep 7, 202651-200104 contacts →

“Clark+Elbing is a top-tier intellectual property (IP) law firm focused on protecting and promoting innovations in life science, chemistry, devices, and diagnostics.”

Source: company website · checked Sep 7, 2026
4Strong evidenceBoston, MA, United StatesHQ checked Sep 7, 202651-200100 contacts →

“Hamilton Brook Smith Reynolds is a leading law firm specializing in intellectual property law.”

Source: company website · checked Sep 7, 2026
5Indirect evidenceBoston, MA, United StatesHQ checked Sep 7, 202651-20062 contacts →

“Lando & Anastasi has received national recognition for our practice, aggressive approach to serving clients' needs, and for our supportive and collaborative firm culture.”

Source: company website · checked Sep 7, 2026
6Strong evidenceBoston, MA, United StatesHQ checked Sep 7, 202651-20047 contacts →

“Caldwell is a premier global law firm at the forefront of innovation and legal excellence delivering best-in class intellectual property, litigation, and corporate advice.”

Source: company website · checked Sep 7, 2026
7Strong evidenceBoston, MA, United StatesHQ checked Sep 7, 202651-20046 contacts →

“For over three decades, Global Prior Art has provided unparalleled support to leading law firms and companies in the areas of intellectual property management and strategic…”

Source: company website · checked Sep 7, 2026
8Strong evidenceBoston, MA, United StatesHQ checked Sep 7, 202651-20044 contacts →

“Sunstein LLP is a boutique Intellectual Property firm with a 40-year history of success and expertise in all areas of IP law including litigation, patent and trademark…”

Source: company website · checked Sep 7, 2026
9Strong evidenceBoston, MA, United StatesHQ checked Sep 7, 202611-5036 contacts →

“Cesari and McKenna is an intellectual property law firm representing clients ranging from individuals to emerging and established companies.”

Source: company website · checked Sep 7, 2026
10Partial evidenceBoston, MA, United StatesHQ checked Sep 7, 20261-1010 contacts →

“The Hsuanyeh Law Group (“HLG”) was founded by inventor-entrepreneur Hsuanyeh Chang, with a doctorate in theoretical physics and extensive experience in patent preparation…”

Source: company website · checked Sep 7, 2026
11Partial evidenceBoston, MA, United StatesHQ checked Sep 7, 20261-104 contacts →

“The Jacobs Law, LLC is a Boston-based business litigation & corporate law firm that provides high-quality, cost-conscious legal services to businesses, entrepreneurs, and…”

Source: company website · checked Sep 7, 2026
12Strong evidenceBoston, MA, United StatesHQ checked Sep 7, 20261-103 contacts →

“Patent GC is a partner only, innovative intellectual property firm, whose attorneys strategically and efficiently manage and execute their clients' intellectual property…”

Source: company website · checked Sep 7, 2026
13Partial evidenceBoston, MA, United StatesHQ checked Sep 7, 202611-501 contacts →

“A high-tech patent boutique law firm with an established history, and an innovative future.”

Source: company website · checked Sep 7, 2026
14Indirect evidenceBoston, United StatesHQ checked Sep 7, 20261-101 contacts →

“Headquartered in Boston, MA, Full Draw Legal is your dedicated business partner for legal and business guidance.”

Source: company website · checked Sep 7, 2026
15Indirect evidenceBoston, MA, United StatesHQ checked Sep 7, 20261-101 contacts →

“PatShegen IP was established by a group of young, determined, and motivated Patent practitioners who have served as Attorneys and Agents in leading international IP firms.”

Source: company website · checked Sep 7, 2026

Showing 15 of 25 intellectual property law companies based in Boston, United States

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Intellectual property law companies based in Boston, United States at a glance

As of Sep 7, 2026
56.9%Verified-email coverage
83.6Average contacts per company
11-50Median size (employees)
688.0%Largest-city concentration · New York
Sep 7, 2026Page data refreshed

Companies by employee count

1-10
10
11-50
5
51-200
7
201-500
1
501-1,000
1
1,001-5,000
1

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 25 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 intellectual property law companies, 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 Boston, United States whose own description of what they do matches “intellectual property law companies”. 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 intellectual property law companies), 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 intellectual property law companies, and records with no verified work email. Companies headquartered outside Boston 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, 1,190 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 7, 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

How many intellectual property law companies are in the directory?

The directory includes 25 intellectual property law companies as of September 2026.

Where are most intellectual property law companies located?

New York is the single most-represented city among the companies on the list, which spans Boston.

How can I find contacts at intellectual property law companies?

The directory includes 2,091 contacts and 1,190 email addresses associated with the listed intellectual property law companies.

Ready to reach these companies? Verified emails and direct dials for all 25 intellectual property law companies based in Boston, United States. Start with a free account, no credit card.

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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.