Company lists · Data refreshed November 2026
Top 25 Due diligence investigation services worldwide
RevenueBase identified 919 company matches for due diligence investigation services worldwide as of November 2026 and tracks 8,771 professional contacts across them, including 2,482 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for due diligence investigation services 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 investigation services 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.
The 25 largest due diligence investigation services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 367 contacts → | ||||
Exact match “Vcheck is a global investigations firm that helps institutions protect their investments by providing intelligence on individuals and entities.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 284 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 | |||||
| 3 | 216 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 | |||||
| 4 | 163 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 | |||||
| 5 | 152 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 | |||||
| 6 | 152 contacts → | ||||
Exact match “A federally qualified Small Business, IDS offers end to end investigative solutions tailored to meet the specific needs of our clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 143 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 | |||||
| 8 | 139 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 | |||||
| 9 | 127 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 | |||||
| 10 | 126 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 121 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 112 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 | |||||
| 13 | 109 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 | |||||
| 14 | 108 contacts → | ||||
Exact match “MSM Security Services, LLC (MSM) is an experienced company providing Investigative Services, Risk Analysis and Screening support for business and employment requirements.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 101 contacts → | ||||
Exact match “Gryphon partners with clients across the globe to help them assess new opportunities and tackle their most complex problems often in challenging and opaque markets.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 99 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 | |||||
| 17 | 99 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 | |||||
| 18 | 97 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 | |||||
| 19 | 90 contacts → | ||||
Exact match “VERIS is a background screening, due diligence and corporate investigations company helping organisations make informed, risk-aware decisions about people, partners and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 87 contacts → | ||||
Exact match “CREtelligent’s Radius Platform is the world's first 24/7 "CRE Due Diligence Storefront." CREtelligent provides almost every due diligence service CRE buyers, lenders and sellers…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 74 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 73 contacts → | ||||
Exact match “CSI is a full-service investigative firm that delivers key facts to give our clients an actionable advantage in a wide range of situations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 71 contacts → | ||||
Exact match “Hiring the right people isn’t just about checking a box-it’s about ensuring accuracy, mitigating risk, and protecting your organization.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 70 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 | |||||
| 25 | 70 contacts → | ||||
Exact match “Investigative Group International (IGI) is the premier investigative firm conducting independent, high-touch investigations worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “due diligence investigation services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 919 due diligence investigation services worldwide
See the full list, filter by size, metro and specialty, and access 2,482 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Due diligence investigation services worldwide at a glance
As of Nov 6, 2026Companies by employee count
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 investigation services are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “due diligence investigation services” 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 2,482 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 investigation services by location
5 lists · largest firstEvery Due diligence investigation services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Due diligence investigation services based in the United States297
- Due diligence investigation services based in the United Kingdom76
- Due diligence investigation services based in India56
- Due diligence investigation services based in Brazil28
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 investigation services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many due diligence investigation services are there worldwide?
RevenueBase identified 919 company matches for due diligence investigation services 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?
Vcheck tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most due diligence investigation services?
The United States leads with 297 companies, followed by the United Kingdom (76) and India (56). Every due diligence investigation services list by country and city is linked on this page.
Which city has the most due diligence investigation services?
London leads with 51 company records, followed by New York (20) and Sao Paulo (20).
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 2,482 professional contacts with verified work emails tracked across these 919 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.
Ready to reach these companies? Verified emails and direct dials for all 919 due diligence investigation services worldwide. 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 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.
More company lists
Company intelligence · public preview
Top 25 due diligence investigation services worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 919 matching company records for due diligence investigation services worldwide, with 8,771 tracked contacts and 2,482 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 due diligence investigation services worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Vcheckvcheckglobal.comHQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 367 contacts → |
“Vcheck is a global investigations firm that helps institutions protect their investments by providing intelligence on individuals and entities.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Icover Servicesicover-services.comHQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 284 contacts → |
“iCOVER Group provides high-quality Third-Party Background Screening, Monitoring, and Due Diligence services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Blue Umbrella Limitedblueumbrella.comHQ: Cleveland, OH, United StatesReported employees: 201-500 | Cleveland, OH, United States | 201-500 | Exact match | 216 contacts → |
“Blue Umbrella is a leading provider of due diligence research and regulatory compliance technologies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  PSApsagroup.comHQ: Washington, United StatesReported employees: 51-200 | Washington, United States | 51-200 | Exact match | 163 contacts → |
“PSA is a global due diligence and investigations firm headquartered in Washington, DC.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Neotasneotas.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 152 contacts → |
“By leveraging cutting-edge technology and experienced analysts, Neotas are going beyond and setting new standards in Due Diligence, Staff Screening, and Compliance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Information Discovery Services LLCinformationdiscovery.netHQ: Fort Worth, TX, United StatesReported employees: 51-200 | Fort Worth, TX, United States | 51-200 | Exact match | 152 contacts → |
“A federally qualified Small Business, IDS offers end to end investigative solutions tailored to meet the specific needs of our clients.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Alias Intelligencealiasintelligence.comHQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 143 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Corporate Research And Investigationscrigroup.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 139 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Youcontrolyoucontrol.com.uaHQ: Kyiv, UkraineReported employees: 51-200 | Kyiv, Ukraine | 51-200 | Exact match | 127 contacts → |
“YouControl is a Ukrainian team that develops services for business analysis.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  FACTfact-uk.org.ukHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 126 contacts → |
“FACT are at the forefront of investigative and intelligence services, recognised by organisations, law enforcement, and governments worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Nardello & COnardelloandco.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 121 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 |  Cedar Rosecedar-rose.comHQ: Limassol, CyprusReported employees: 51-200 | Limassol, Cyprus | 51-200 | Exact match | 112 contacts → |
“Established in 1997, Cedar Rose has evolved into a global leader in business intelligence, credit risk, and due diligence solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Background Check Internationalbcilimited.comHQ: Lagos, NigeriaReported employees: 51-200 | Lagos, Nigeria | 51-200 | Exact match | 109 contacts → |
“Africa's Leading Background Screening and Due Diligence Company, built on trust for people and enterprise.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  MSM Security Services LLCmsmsecurity.comHQ: Chevy Chase, MD, United StatesReported employees: 51-200 | Chevy Chase, MD, United States | 51-200 | Exact match | 108 contacts → |
“MSM Security Services, LLC (MSM) is an experienced company providing Investigative Services, Risk Analysis and Screening support for business and employment requirements.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Gryphongryphon-strategies.comHQ: White Plains, NY, United StatesReported employees: 51-200 | White Plains, NY, United States | 51-200 | Exact match | 101 contacts → |
“Gryphon partners with clients across the globe to help them assess new opportunities and tackle their most complex problems often in challenging and opaque markets.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Central Business Information Limitedcbil.com.hkHQ: Hong Kong, ChinaReported employees: 201-500 | Hong Kong, China | 201-500 | Exact match | 99 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  The Risk Advisory Groupriskadvisory.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 99 contacts → |
“Risk Advisory Group is a global business intelligence and investigations firm.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Uplexisuplexis.com.brHQ: São Paulo, BrazilReported employees: 51-200 | São Paulo, Brazil | 51-200 | Exact match | 97 contacts → |
“A upLexis foi fundada há 20 anos com o propósito de promover segurança e transparência no mercado, utilizando as tecnologias mais inovadoras disponíveis.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  VERISveris-consulting.comHQ: Singapore, IndonesiaReported employees: 11-50 | Singapore, Indonesia | 11-50 | Exact match | 90 contacts → |
“VERIS is a background screening, due diligence and corporate investigations company helping organisations make informed, risk-aware decisions about people, partners and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Cretelligentcretelligent.comHQ: Gold River, CA, United StatesReported employees: 51-200 | Gold River, CA, United States | 51-200 | Exact match | 87 contacts → |
“CREtelligent’s Radius Platform is the world's first 24/7 "CRE Due Diligence Storefront." CREtelligent provides almost every due diligence service CRE buyers, lenders and sellers…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Ashland Partners & Company LLPashlandpartners.comHQ: Medford, OR, United StatesReported employees: 11-50 | Medford, OR, United States | 11-50 | Exact match | 74 contacts → |
“Ashland Partners & Company LLP is a PCAOB registered, specialty CPA firm providing due diligence solutions to the investment management industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  CSI Corporate Security And Investigationscsiinvestigators.comHQ: Monaca, PA, United StatesReported employees: 201-500 | Monaca, PA, United States | 201-500 | Exact match | 73 contacts → |
“CSI is a full-service investigative firm that delivers key facts to give our clients an actionable advantage in a wide range of situations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  THUROthuro.aiHQ: Cleveland, OH, United StatesReported employees: 51-200 | Cleveland, OH, United States | 51-200 | Exact match | 71 contacts → |
“Hiring the right people isn’t just about checking a box-it’s about ensuring accuracy, mitigating risk, and protecting your organization.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Alea Consultingalea.asiaHQ: Gurgaon, IndiaReported employees: 51-200 | Gurgaon, India | 51-200 | Exact match | 70 contacts → |
“Founded in October 2003, Alea Consulting supports clients with focused governance, compliance, integrity due diligence, and corporate intelligence.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Investigative Group Internationaligint.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 70 contacts → |
“Investigative Group International (IGI) is the premier investigative firm conducting independent, high-touch investigations worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 919 company matches
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Due diligence investigation services: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
913 records in the displayed employee bands.
6 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 919 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Due diligence investigation services by location
5 lists · largest firstEvery Due diligence investigation services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Due diligence investigation services based in the United States297
- Due diligence investigation services based in the United Kingdom76
- Due diligence investigation services based in India56
- Due diligence investigation services based in Brazil28
Cities
Questions about this company list
What does Exact match mean for due diligence investigation services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many due diligence investigation services did RevenueBase find worldwide?
The saved snapshot records 919 matching company records, 8,771 tracked contacts and 2,482 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 due diligence investigation services worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/due-diligence-investigation-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 due diligence investigation services worldwide
RevenueBase records 919 matching company records for due diligence investigation services worldwide, with 8,771 tracked contacts and 2,482 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 due diligence investigation services worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Vcheckvcheckglobal.com HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 367 contacts → |
“Vcheck is a global investigations firm that helps institutions protect their investments by providing intelligence on individuals and entities.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Icover Servicesicover-services.com HQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 284 contacts → |
“iCOVER Group provides high-quality Third-Party Background Screening, Monitoring, and Due Diligence services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Blue Umbrella Limitedblueumbrella.com HQ: Cleveland, OH, United StatesReported employees: 201-500 | Cleveland, OH, United States | 201-500 | Exact match | 216 contacts → |
“Blue Umbrella is a leading provider of due diligence research and regulatory compliance technologies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | PSApsagroup.com HQ: Washington, United StatesReported employees: 51-200 | Washington, United States | 51-200 | Exact match | 163 contacts → |
“PSA is a global due diligence and investigations firm headquartered in Washington, DC.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Neotasneotas.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 152 contacts → |
“By leveraging cutting-edge technology and experienced analysts, Neotas are going beyond and setting new standards in Due Diligence, Staff Screening, and Compliance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Information Discovery Services LLCinformationdiscovery.net HQ: Fort Worth, TX, United StatesReported employees: 51-200 | Fort Worth, TX, United States | 51-200 | Exact match | 152 contacts → |
“A federally qualified Small Business, IDS offers end to end investigative solutions tailored to meet the specific needs of our clients.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Alias Intelligencealiasintelligence.com HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 143 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Corporate Research And Investigationscrigroup.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 139 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Youcontrolyoucontrol.com.ua HQ: Kyiv, UkraineReported employees: 51-200 | Kyiv, Ukraine | 51-200 | Exact match | 127 contacts → |
“YouControl is a Ukrainian team that develops services for business analysis.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | FACTfact-uk.org.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 126 contacts → |
“FACT are at the forefront of investigative and intelligence services, recognised by organisations, law enforcement, and governments worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Nardello & COnardelloandco.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 121 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 | Cedar Rosecedar-rose.com HQ: Limassol, CyprusReported employees: 51-200 | Limassol, Cyprus | 51-200 | Exact match | 112 contacts → |
“Established in 1997, Cedar Rose has evolved into a global leader in business intelligence, credit risk, and due diligence solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Background Check Internationalbcilimited.com HQ: Lagos, NigeriaReported employees: 51-200 | Lagos, Nigeria | 51-200 | Exact match | 109 contacts → |
“Africa's Leading Background Screening and Due Diligence Company, built on trust for people and enterprise.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | MSM Security Services LLCmsmsecurity.com HQ: Chevy Chase, MD, United StatesReported employees: 51-200 | Chevy Chase, MD, United States | 51-200 | Exact match | 108 contacts → |
“MSM Security Services, LLC (MSM) is an experienced company providing Investigative Services, Risk Analysis and Screening support for business and employment requirements.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Gryphongryphon-strategies.com HQ: White Plains, NY, United StatesReported employees: 51-200 | White Plains, NY, United States | 51-200 | Exact match | 101 contacts → |
“Gryphon partners with clients across the globe to help them assess new opportunities and tackle their most complex problems often in challenging and opaque markets.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Central Business Information Limitedcbil.com.hk HQ: Hong Kong, ChinaReported employees: 201-500 | Hong Kong, China | 201-500 | Exact match | 99 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | The Risk Advisory Groupriskadvisory.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 99 contacts → |
“Risk Advisory Group is a global business intelligence and investigations firm.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Uplexisuplexis.com.br HQ: São Paulo, BrazilReported employees: 51-200 | São Paulo, Brazil | 51-200 | Exact match | 97 contacts → |
“A upLexis foi fundada há 20 anos com o propósito de promover segurança e transparência no mercado, utilizando as tecnologias mais inovadoras disponíveis.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | VERISveris-consulting.com HQ: Singapore, IndonesiaReported employees: 11-50 | Singapore, Indonesia | 11-50 | Exact match | 90 contacts → |
“VERIS is a background screening, due diligence and corporate investigations company helping organisations make informed, risk-aware decisions about people, partners and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Cretelligentcretelligent.com HQ: Gold River, CA, United StatesReported employees: 51-200 | Gold River, CA, United States | 51-200 | Exact match | 87 contacts → |
“CREtelligent’s Radius Platform is the world's first 24/7 "CRE Due Diligence Storefront." CREtelligent provides almost every due diligence service CRE buyers, lenders and sellers…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Ashland Partners & Company LLPashlandpartners.com HQ: Medford, OR, United StatesReported employees: 11-50 | Medford, OR, United States | 11-50 | Exact match | 74 contacts → |
“Ashland Partners & Company LLP is a PCAOB registered, specialty CPA firm providing due diligence solutions to the investment management industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | CSI Corporate Security And Investigationscsiinvestigators.com HQ: Monaca, PA, United StatesReported employees: 201-500 | Monaca, PA, United States | 201-500 | Exact match | 73 contacts → |
“CSI is a full-service investigative firm that delivers key facts to give our clients an actionable advantage in a wide range of situations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | THUROthuro.ai HQ: Cleveland, OH, United StatesReported employees: 51-200 | Cleveland, OH, United States | 51-200 | Exact match | 71 contacts → |
“Hiring the right people isn’t just about checking a box-it’s about ensuring accuracy, mitigating risk, and protecting your organization.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Alea Consultingalea.asia HQ: Gurgaon, IndiaReported employees: 51-200 | Gurgaon, India | 51-200 | Exact match | 70 contacts → |
“Founded in October 2003, Alea Consulting supports clients with focused governance, compliance, integrity due diligence, and corporate intelligence.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Investigative Group Internationaligint.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 70 contacts → |
“Investigative Group International (IGI) is the premier investigative firm conducting independent, high-touch investigations worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Due diligence investigation services: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
913 records in the displayed employee bands.
6 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 919 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Due diligence investigation services by location
5 lists · largest firstEvery Due diligence investigation services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Due diligence investigation services based in the United States297
- Due diligence investigation services based in the United Kingdom76
- Due diligence investigation services based in India56
- Due diligence investigation services based in Brazil28
Cities
Questions about this company list
What does Exact match mean for due diligence investigation services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many due diligence investigation services did RevenueBase find worldwide?
The saved snapshot records 919 matching company records, 8,771 tracked contacts and 2,482 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 due diligence investigation services worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/due-diligence-investigation-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗