Company lists · Data refreshed September 2026

Top 25 Ip due diligence firms based in the United States

RevenueBase identified 187 company matches for ip due diligence firms associated with the United States as of September 2026 and tracks 2,625 professional contacts across them, including 1,038 with verified work emails. New York is the largest hub.

This list covers company matches for ip due diligence 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 20, 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 20, 2026 How this list was built
187Companies
2,625Contacts tracked
1,038Verified emails
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The 25 largest ip due diligence firms based in the United States

Ranked by team size
Top 25 of 187 company matches for ip due diligence firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchSeattle, WA, United StatesHQ recorded Sep 20, 2026501-1,000488 contacts →

Exact match

“Sagacious IP is the World’s LARGEST IP research firm that reliably supports the worldwide IP community including Large Corporations, Small & Mid-size Corporations, IP law firms…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchEvanston, IL, United StatesHQ recorded Sep 20, 2026201-500142 contacts →

Exact match

“Cardinal IP is a global leader in patent and trademark research, and a provider of software services for intellectual property management.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202651-200142 contacts →

Exact match

“PSA is a global due diligence and investigations firm headquartered in Washington, DC.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Sep 20, 202651-20092 contacts →

Exact match

“Conley Rose is a leading intellectual property-only law firm that has been maximizing the value of clients’ intellectual property in the U.S.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchChandler, AZ, United StatesHQ recorded Sep 20, 202651-20075 contacts →

Exact match

“Protect Your Clients.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202651-20075 contacts →

Exact match

“Blue Heron Research Partners is an international leader in qualitative due diligence.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchMedford, OR, United StatesHQ recorded Sep 20, 202611-5067 contacts →

Exact match

“Ashland Partners & Company LLP is a PCAOB registered, specialty CPA firm providing due diligence solutions to the investment management industry.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchCincinnati, OH, United StatesHQ recorded Sep 20, 202611-5062 contacts →

Exact match

“Live investigator-led analysis is the best way to minimize regulatory, reputational and financial risks.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchCA, United StatesHQ recorded Sep 20, 202651-20055 contacts →

Exact match

“A leading IP research firm offering comprehensive intellectual property and legal services.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchSanta Monica, CA, United StatesHQ recorded Sep 20, 202651-20049 contacts →

Exact match

“Ironsides is an M&A advisory firm focused exclusively on providing transaction services including financial and accounting due diligence, tax due diligence and structuring…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202651-20046 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchAlpine, UT, United StatesHQ recorded Sep 20, 202611-5046 contacts →

Exact match

“Marksmen is a global leader in specialized brand protection, helping to solve complex intellectual property [IP] issues for companies and law firms the world over.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202651-20042 contacts →

Exact match

“Hilton Global Associates is a professional investigative research firm providing expert due diligence and unparalleled client service.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202611-5039 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchAlexandria, VA, United StatesHQ recorded Sep 20, 202611-5038 contacts →

Exact match

“Nath, Goldberg & Meyer (NGM) is an intellectual property law firm engaging in all aspects of IP law practice.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchSan Francisco, CA, United StatesHQ recorded Sep 20, 202611-5037 contacts →

Exact match

“CDS is now part of CrossCountry Consulting.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchToledo, OH, United StatesHQ recorded Sep 20, 202611-5036 contacts →

Exact match

“MacMillan, Sobanski & Todd, LLC practices intellectual property law including patents, trademarks, copyrights, opinions, licensing, mergers, acquisitions and divestitures…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchGaithersburg, MD, United StatesHQ recorded Sep 20, 202611-5035 contacts →

Exact match

“Edell, Shapiro & Finnan, LLC is an intellectual property law firm located in the Washington, DC metropolitan area.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202651-20033 contacts →

Exact match

“Wenderoth is an Intellectual Property firm with one primary focus - prosecution.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchSan Diego, CA, United StatesHQ recorded Sep 20, 202611-5032 contacts →

Exact match

“CONSOR® is dedicated to helping clients establish and build the value of their intellectual property and intangible asset base, while minimizing risk and uncertainty.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchColumbia, MD, United StatesHQ recorded Sep 20, 202611-5027 contacts →

Exact match

“Our law firm combines highly specialized legal expertise with business and financial acumen, which allows us to provide our clients with focused intelligence and due diligence on…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchPhoenix, AZ, United StatesHQ recorded Sep 20, 202611-5027 contacts →

Exact match

“Subrosa is a full-service private investigative firm, providing customized services ranging from thorough background checks, to undercover surveillance, to corporate due diligence…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchWanaque, NJ, United StatesHQ recorded Sep 20, 202611-5023 contacts →

Exact match

“Hetherington Group is a leader in investigative due diligence, corporate intelligence, and cyber investigations.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchManchester, NH, United StatesHQ recorded Sep 20, 202611-5023 contacts →

Exact match

“Finch & Maloney is a law firm that provides intellectual property counseling and services to technology companies.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchEden Prairie, MN, United StatesHQ recorded Sep 20, 202611-5022 contacts →

Exact match

“FactRight is the premier source of credible perspective and advice for wealth managers seeking access to alternative investments.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 187 ip due diligence firms based in the United States

See the full list, filter by size, metro and specialty, and access 1,038 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Ip due diligence firms based in the United States at a glance

As of Sep 20, 2026
39.5%Verified-email coverage
14.0Average contacts per company
1-10Median size (employees)
7.0%Largest-city concentration · New York
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
112
11-50
59
51-200
13
201-500
1
501-1,000
2

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 187 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 “ip due diligence 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 1,038 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 20, 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 “ip due diligence firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ip due diligence firms are there based in the United States?

RevenueBase identified 187 company matches for ip due diligence 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?

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

Which city has the most ip due diligence firms?

New York leads with 13 company records, followed by San Diego (8) and Washington (8).

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 1,038 professional contacts with verified work emails tracked across these 187 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 20, 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.