Company lists · Data refreshed November 2026

Top 25 Due diligence research providers worldwide

RevenueBase identified 615 company matches for due diligence research providers worldwide as of November 2026 and tracks 5,648 professional contacts across them, including 1,514 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for due diligence research providers 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 November 6, 2026. Country and city lists for due diligence research providers 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 Nov 6, 2026 How this list was built
615Companies
5,648Contacts tracked
1,514Verified emails
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The 25 largest due diligence research providers worldwide

Ranked by team size
Top 25 of 615 company matches for due diligence research providers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 match新加坡, SingaporeHQ recorded Nov 6, 202651-200372 contacts →

Exact match

“BDA is an investment advisory firm founded in 1994, initially to serve Morgan Stanley and its clients then our own.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchParis, FranceHQ recorded Nov 6, 2026201-500284 contacts →

Exact match

“iCOVER Group provides high-quality Third-Party Background Screening, Monitoring, and Due Diligence services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchCleveland, OH, United StatesHQ recorded Nov 6, 2026201-500216 contacts →

Exact match

“Blue Umbrella is a leading provider of due diligence research and regulatory compliance technologies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchWashington, United StatesHQ recorded Nov 6, 202651-200163 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200152 contacts →

Exact match

“By leveraging cutting-edge technology and experienced analysts, Neotas are going beyond and setting new standards in Due Diligence, Staff Screening, and Compliance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLos Angeles, CA, United StatesHQ recorded Nov 6, 202651-200143 contacts →

Exact match

“Alias Intelligence is a leading background investigations and due diligence company delivering the information and insights our clients need to grow and navigate their businesses.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200139 contacts →

Exact match

“Corporate Research and Investigations Limited is a global provider of investigative research, background screening and business due diligence services for the world’s leading…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchKyiv, UkraineHQ recorded Nov 6, 202651-200127 contacts →

Exact match

“YouControl is a Ukrainian team that develops services for business analysis.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLimassol, CyprusHQ recorded Nov 6, 202651-200112 contacts →

Exact match

“Established in 1997, Cedar Rose has evolved into a global leader in business intelligence, credit risk, and due diligence solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLagos, NigeriaHQ recorded Nov 6, 202651-200109 contacts →

Exact match

“Africa's Leading Background Screening and Due Diligence Company, built on trust for people and enterprise.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchHong Kong, ChinaHQ recorded Nov 6, 2026201-50099 contacts →

Exact match

“Founded in 1996, Central Business Information Limited (CBI) is a global business information company covering Hong Kong, China and 214 countries and regions around the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20099 contacts →

Exact match

“Risk Advisory Group is a global business intelligence and investigations firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSão Paulo, BrazilHQ recorded Nov 6, 202651-20097 contacts →

Exact match

“A upLexis foi fundada há 20 anos com o propósito de promover segurança e transparência no mercado, utilizando as tecnologias mais inovadoras disponíveis.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchGurgaon, IndiaHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“Founded in October 2003, Alea Consulting supports clients with focused governance, compliance, integrity due diligence, and corporate intelligence.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchCincinnati, OH, United StatesHQ recorded Nov 6, 202611-5066 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchDubai, United Arab EmiratesHQ recorded Nov 6, 202651-20063 contacts →

Exact match

“ITGS is a global risk intelligence and business assurance company dedicated to helping organizations make informed, confident, and compliant decisions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchHyderabad, IndiaHQ recorded Nov 6, 202611-5062 contacts →

Exact match

“Due Diligence AI that runs comprehensive financial, legal, regulatory and reputational risk analysis on any given target.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBeijing, Hong KongHQ recorded Nov 6, 202651-20055 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSin El-fil, United StatesHQ recorded Nov 6, 202651-20048 contacts →

Exact match

“MASRI, originally established in 1950, is the oldest established, largest, and leading firm in the MENA and GCC in the field of due diligence, background checks, commercial…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchUnited StatesHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“We provide real results, real quick.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchHong KongHQ recorded Nov 6, 202651-20042 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 202611-5041 contacts →

Exact match

“SINCERIUS is frontrunner in data-driven due diligence.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchNew Delhi, IndiaHQ recorded Nov 6, 202651-20040 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 · Nov 6, 2026 · View company records in RevenueBase
24Exact matchNew York, FL, United StatesHQ recorded Nov 6, 202651-20039 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 · Nov 6, 2026 · View company records in RevenueBase
25Exact matchNew York, IL, United StatesHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“Quinlan Partners is a global due diligence, investigations and business intelligence firm whose team of top former investigative journalists, corporate intelligence and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 615 due diligence research providers worldwide

See the full list, filter by size, metro and specialty, and access 1,514 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Due diligence research providers worldwide at a glance

As of Nov 6, 2026
26.8%Verified-email coverage
9.2Average contacts per company
1-10Median size (employees)
5.9%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
400
11-50
158
51-200
49
201-500
6

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 due diligence research providers are linked below.
What qualifies
Company records worldwide whose business descriptions match “due diligence research providers” 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 1,514 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 November 6, 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.

Due diligence research providers by location

4 lists · largest first

Every Due diligence research providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “due diligence research providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many due diligence research providers are there worldwide?

RevenueBase identified 615 company matches for due diligence research providers worldwide as of November 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?

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

Which country has the most due diligence research providers?

The United States leads with 194 companies, followed by the United Kingdom (54). Every due diligence research providers list by country and city is linked on this page.

Which city has the most due diligence research providers?

London leads with 36 company records, followed by New York (25) and Hong Kong (9).

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 1,514 professional contacts with verified work emails tracked across these 615 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 November 6, 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.