Company lists · Data refreshed September 2026

Top 25 Ip due diligence firms worldwide

RevenueBase identified 523 company matches for ip due diligence firms worldwide as of September 2026 and tracks 4,884 professional contacts across them, including 1,544 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for ip due diligence firms worldwide, 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. Country and city lists for ip due diligence firms follow the table.

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
523Companies
4,884Contacts tracked
1,544Verified emails
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The 25 largest ip due diligence firms worldwide

Ranked by team size
Top 25 of 523 company matches for ip due diligence firms worldwide, 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 matchSydney, AustraliaHQ recorded Sep 20, 2026201-500191 contacts →

Exact match

“Since being founded more than 75 years ago, we have become Australia’s most trusted intellectual property firm with offices across the country and a well-established presence in…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact 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
4Exact 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
5Exact matchLondon, United KingdomHQ recorded Sep 20, 202651-200117 contacts →

Exact match

“FACT are at the forefront of investigative and intelligence services, recognised by organisations, law enforcement, and governments worldwide.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact 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
7Exact 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
8Exact 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
9Exact matchSector-66, IndiaHQ recorded Sep 20, 202651-20072 contacts →

Exact match

“Established in 2012, iCuerious is a global intellectual property research and technology intelligence firm providing a full range of patent support and strategic analysis services…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchWadala (e), IndiaHQ recorded Sep 20, 202651-20072 contacts →

Exact match

“A TO Z SERVICES PVT.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact 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
12Exact 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
13Exact 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
14Exact 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
15Exact matchHong KongHQ recorded Sep 20, 202651-20048 contacts →

Exact match

“Blackpeak is dedicated to uncovering critical risks for our clients worldwide.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact 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
17Exact 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
18Exact 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
19Exact matchParis, FranceHQ recorded Sep 20, 202651-20042 contacts →

Exact match

“Le cabinet Nony a été intégré à IPSILON.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchChandigarh, IndiaHQ recorded Sep 20, 202651-20040 contacts →

Exact match

“Leading Outsourcing firm since 2006 - serving law-firms & corporate across diverse industries in diff.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchHong KongHQ recorded Sep 20, 202651-20039 contacts →

Exact match

“The Search Group (TSG) specializes in due diligence and business intelligence.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchNew York City, 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
23Exact matchNew Delhi, IndiaHQ recorded Sep 20, 202651-20039 contacts →

Exact match

“Premier Consultancy & Investigation is a Risk Advisory Consultancy that conducts international due diligence investigations that help clients make better decisions by selecting…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchUnited StatesHQ recorded Sep 20, 202651-20038 contacts →

Exact match

“We provide real results, real quick.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact 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

Showing 25 of 523 ip due diligence firms worldwide

See the full list, filter by size, metro and specialty, and access 1,544 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Ip due diligence firms worldwide at a glance

As of Sep 20, 2026
31.6%Verified-email coverage
9.3Average contacts per company
1-10Median size (employees)
2.7%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
319
11-50
153
51-200
38
201-500
9
501-1,000
3
1,001-5,000
1

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for ip due diligence firms are linked below.
What qualifies
Company records worldwide 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. 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 1,544 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.

Ip due diligence firms by location

2 lists · largest first

Every Ip due diligence firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 worldwide?

RevenueBase identified 523 company matches for ip due diligence firms worldwide 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 country has the most ip due diligence firms?

The United States leads with 187 companies, followed by India (70). Every ip due diligence firms list by country and city is linked on this page.

Which city has the most ip due diligence firms?

London leads with 14 company records, followed by New Delhi (13) and New York (11).

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 1,544 professional contacts with verified work emails tracked across these 523 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.