Company lists · Data refreshed September 2026
Top 25 Due diligence security firms worldwide
RevenueBase identified 7,566 company matches for due diligence security firms worldwide as of September 2026 and tracks 75,962 professional contacts across them, including 17,249 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for due diligence security 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 28, 2026. Country and city lists for due diligence security 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.
The 25 largest due diligence security firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 12,771 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 2 | 1,374 contacts → | ||||
Exact match “First Security Group LLC was founded in 2004 with the vision of His Highness, the Vice President, Prime Minister, and Ruler of Dubai, Sheikh Mohamed bin Rashid Al Maktoum.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 3 | 1,232 contacts → | ||||
Exact match “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 4 | 1,007 contacts → | ||||
Exact match “La proposition de valeur d'Onet dans la sécurité se fonde sur - son expertise sécurité et sa capacité à analyser les besoins et risques propres à ses clients- sa parfaite maîtrise…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 5 | 473 contacts → | ||||
Exact match “At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 6 | 399 contacts → | ||||
Exact match “A SAFEWAY empresa que integra a plataforma de cibersegurança do Grupo Stefanini se une a Protega.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 7 | 363 contacts → | ||||
Exact match “eSec Forte® Technologies is a CMMi Level 3 certified Global Consulting and IT Security Services company with offerings across Cloud Security, Cyber Forensics, Malware Detection…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 8 | 335 contacts → | ||||
Exact match “T A L A K U N C H I Networks Pvt.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 9 | 315 contacts → | ||||
Exact match “NVISO is a cyber security services firm composed of outstanding security professionals - each has a specific field of expertise, ranging from security research and risk management…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 10 | 304 contacts → | ||||
Exact match “Há mais de 25 anos no mercado, com atuação nacional e com uma estrutura moderna, o Grupo Liberdade tem se destacado na execução de serviços de segurança que não se limitam a…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 11 | 272 contacts → | ||||
Exact match “Prescient Security is a global cybersecurity and compliance firm delivering risk-based audits, advanced penetration testing, and end-to-end framework support.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 12 | 268 contacts → | ||||
Exact match “We stand at the forefront of leadership, insight, and guidance in a world marked by complexity and uncertainty.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 13 | 255 contacts → | ||||
Exact match “Baxter Clewis Cybersecurity, we bring to the table a unique set of experiences that allow us to best serve your cybersecurity needs.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 14 | 252 contacts → | ||||
Exact match “NdimensionZ Solutions Pvt Ltd is an ISO 9001:2015 and ISO/IEC 27001:2013 certified, technology and service oriented company headquartered at major IT hub in India.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 15 | 247 contacts → | ||||
Exact match “Netrika Consulting India stands as a preeminent global leader in emerging and frontier markets, providing unparalleled integrity management and risk mitigation services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 16 | 238 contacts → | ||||
Exact match “Established 26 years ago, Meta Infotech has been a trusted name in Cyber and IT Risk Assessment Services, Cybersecurity Product Consulting, Implementation & Sustenance Services…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 17 | 221 contacts → | ||||
Exact match “CYRAAC Services Private Limited (CyRAACS) is a leading, technology-first cybersecurity consulting and advisory firm headquartered in India, empanelled with CERT-In and accredited…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 18 | 215 contacts → | ||||
Exact match “O nosso trabalho é proteger o seu.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 19 | 204 contacts → | ||||
Exact match “MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 20 | 199 contacts → | ||||
Exact match “Founded in 2003, Tevora is a specialized management consultancy focused on cybersecurity, risk, and compliance services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 21 | 183 contacts → | ||||
Exact match “Expertos en Ciberseguridad, Privacidad, GRC, IRM y Cumplimiento Normativo unificando la perspectiva Legal y Tecnológica GOVERTIS es la mayor firma de Advisory 100% especializada…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 22 | 181 contacts → | ||||
Exact match “ARMUR nace de la iniciativa de unificar dos universos regidos por un mismo objetivo: reafirmar nuestra misión por ofrecer procesos de seguridad confiables, y una gestión de…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 23 | 180 contacts → | ||||
Exact match “2Bsecure Ltd.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 24 | 174 contacts → | ||||
Exact match “Insight Assurance is a security and compliance firm trusted by more than 1,500 organizations for their SOC 1, SOC 2, SOC 3, PCI DSS, ISO 27001, ISO 27017/27018, ISO 27701, ISO…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 25 | 170 contacts → | ||||
Exact match “Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!” Recorded in the RevenueBase company graph · Sep 28, 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 security firms”. 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 7,566 due diligence security firms worldwide
See the full list, filter by size, metro and specialty, and access 17,249 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Due diligence security firms worldwide at a glance
As of Sep 28, 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 security firms are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “due diligence security 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 17,249 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 28, 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 security firms by location
53 lists · largest firstEvery Due diligence security firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Due diligence security firms based in the United States2,163
- Due diligence security firms based in the United Kingdom468
- Due diligence security firms based in India386
- Due diligence security firms based in France271
- Due diligence security firms based in Canada265
- Due diligence security firms based in Germany258
- Due diligence security firms based in Brazil243
- Due diligence security firms based in Australia229
- Due diligence security firms based in the Netherlands144
- Due diligence security firms based in Mexico107
- Due diligence security firms based in Italy97
- Due diligence security firms based in Spain96
- Due diligence security firms based in Switzerland79
- Due diligence security firms based in the United Arab Emirates77
- Due diligence security firms based in South Africa76
- Due diligence security firms based in Sweden75
- Due diligence security firms based in Colombia66
- Due diligence security firms based in Israel64
- Due diligence security firms based in Belgium53
- Due diligence security firms based in Poland51
- Due diligence security firms based in Chile49
- Due diligence security firms based in Türkiye47
- Due diligence security firms based in Argentina46
- Due diligence security firms based in New Zealand36
- Due diligence security firms based in Austria29
- Due diligence security firms based in Indonesia29
- Due diligence security firms based in Denmark28
- Due diligence security firms based in Romania28
- Due diligence security firms based in Ireland27
- Due diligence security firms based in Saudi Arabia25
Cities
- Due diligence security firms based in London, United Kingdom161
- Due diligence security firms based in Sao Paulo, Brazil88
- Due diligence security firms based in Paris, France77
- Due diligence security firms based in Toronto, Canada64
- Due diligence security firms based in Bangalore, India59
- Due diligence security firms based in New York, United States58
- Due diligence security firms based in Dubai, United Arab Emirates47
- Due diligence security firms based in Atlanta, United States46
- Due diligence security firms based in Melbourne, Australia46
- Due diligence security firms based in Sydney, Australia44
- Due diligence security firms based in Washington, United States43
- Due diligence security firms based in Houston, United States42
- Due diligence security firms based in Tampa, United States38
- Due diligence security firms based in Stockholm, Sweden37
- Due diligence security firms based in San Francisco, United States32
- Due diligence security firms based in Chicago, United States30
- Due diligence security firms based in Calgary, Canada29
- Due diligence security firms based in Mumbai, India27
- Due diligence security firms based in Pune, India27
- Due diligence security firms based in Chennai, India26
- Due diligence security firms based in Los Angeles, United States25
- Due diligence security firms based in Miami, United States25
- Due diligence security firms based in Ottawa, Canada25
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 security firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many due diligence security firms are there worldwide?
RevenueBase identified 7,566 company matches for due diligence security 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?
Private Sector tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most due diligence security firms?
The United States leads with 2,163 companies, followed by the United Kingdom (468) and India (386). Every due diligence security firms list by country and city is linked on this page.
Which city has the most due diligence security firms?
London leads with 164 company records, followed by Sao Paulo (88) and Paris (77).
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 17,249 professional contacts with verified work emails tracked across these 7,566 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 28, 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.
More company lists
Company intelligence · public preview
Top 25 due diligence security firms worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 7,566 matching company records for due diligence security firms worldwide, with 75,962 tracked contacts and 17,249 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: September 28, 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 security firms 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 | Private Sectorlockervault.com HQ: United StatesReported employees: Not recorded | United States | Not recorded | Exact match | 12,771 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 2 |  First Security Group LLCfirstsg.comHQ: Dubai, United Arab EmiratesReported employees: 5,001-10,000 | Dubai, United Arab Emirates | 5,001-10,000 | Exact match | 1,374 contacts → |
“First Security Group LLC was founded in 2004 with the vision of His Highness, the Vice President, Prime Minister, and Ruler of Dubai, Sheikh Mohamed bin Rashid Al Maktoum.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Guidepoint Securityguidepointsecurity.comHQ: Reston, VA, United StatesReported employees: 1,001-5,000 | Reston, VA, United States | 1,001-5,000 | Exact match | 1,232 contacts → |
“GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Onet Sécuritéonet.frHQ: Marseille, FranceReported employees: 10001+ | Marseille, France | 10001+ | Exact match | 1,007 contacts → |
“La proposition de valeur d'Onet dans la sécurité se fonde sur - son expertise sécurité et sa capacité à analyser les besoins et risques propres à ses clients- sa parfaite maîtrise…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Aujas Cybersecurityaujas.comHQ: Cupertino, CA, United StatesReported employees: 1,001-5,000 | Cupertino, CA, United States | 1,001-5,000 | Exact match | 473 contacts → |
“At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Safewaysafewayconsultoria.comHQ: Sao Paulo, BrazilReported employees: 201-500 | Sao Paulo, Brazil | 201-500 | Exact match | 399 contacts → |
“A SAFEWAY empresa que integra a plataforma de cibersegurança do Grupo Stefanini se une a Protega.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Esec Forte Technologiesesecforte.comHQ: Gurugram, IndiaReported employees: 201-500 | Gurugram, India | 201-500 | Exact match | 363 contacts → |
“eSec Forte® Technologies is a CMMi Level 3 certified Global Consulting and IT Security Services company with offerings across Cloud Security, Cyber Forensics, Malware Detection…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Talakunchi Networks PVT LTDtalakunchi.comHQ: Mumbai, IndiaReported employees: 201-500 | Mumbai, India | 201-500 | Exact match | 335 contacts → |
“T A L A K U N C H I Networks Pvt.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Nviso Securitynviso.euHQ: Brussels, BelgiumReported employees: 201-500 | Brussels, Belgium | 201-500 | Exact match | 315 contacts → |
“NVISO is a cyber security services firm composed of outstanding security professionals - each has a specific field of expertise, ranging from security research and risk management…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Grupo Liberdadegrupoliberdade.com.brHQ: São Paulo, BrazilReported employees: 1,001-5,000 | São Paulo, Brazil | 1,001-5,000 | Exact match | 304 contacts → |
“Há mais de 25 anos no mercado, com atuação nacional e com uma estrutura moderna, o Grupo Liberdade tem se destacado na execução de serviços de segurança que não se limitam a…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Prescient Securityprescientsecurity.comHQ: Nashville, TN, United StatesReported employees: 201-500 | Nashville, TN, United States | 201-500 | Exact match | 272 contacts → |
“Prescient Security is a global cybersecurity and compliance firm delivering risk-based audits, advanced penetration testing, and end-to-end framework support.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Guidepost Solutionsguidepostsolutions.comHQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 268 contacts → |
“We stand at the forefront of leadership, insight, and guidance in a world marked by complexity and uncertainty.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Baxter Clewis Cybersecuritybaxterclewis.comHQ: Cedar Hill, TX, United StatesReported employees: 201-500 | Cedar Hill, TX, United States | 201-500 | Exact match | 255 contacts → |
“Baxter Clewis Cybersecurity, we bring to the table a unique set of experiences that allow us to best serve your cybersecurity needs.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Ndimensionz Solutions PVT LTDndimensionz.comHQ: Cochin, IndiaReported employees: 201-500 | Cochin, India | 201-500 | Exact match | 252 contacts → |
“NdimensionZ Solutions Pvt Ltd is an ISO 9001:2015 and ISO/IEC 27001:2013 certified, technology and service oriented company headquartered at major IT hub in India.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Netrika Consulting India PVT LTDnetrika.comHQ: Gurgaon, IndiaReported employees: 201-500 | Gurgaon, India | 201-500 | Exact match | 247 contacts → |
“Netrika Consulting India stands as a preeminent global leader in emerging and frontier markets, providing unparalleled integrity management and risk mitigation services.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Meta Infotech Limitedmetainfotech.comHQ: Mumbai, IndiaReported employees: 201-500 | Mumbai, India | 201-500 | Exact match | 238 contacts → |
“Established 26 years ago, Meta Infotech has been a trusted name in Cyber and IT Risk Assessment Services, Cybersecurity Product Consulting, Implementation & Sustenance Services…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Cyraacscyraacs.comHQ: Bengaluru, IndiaReported employees: 51-200 | Bengaluru, India | 51-200 | Exact match | 221 contacts → |
“CYRAAC Services Private Limited (CyRAACS) is a leading, technology-first cybersecurity consulting and advisory firm headquartered in India, empanelled with CERT-In and accredited…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Redbelt Securityredbelt.com.brHQ: Sao Paulo, BrazilReported employees: 51-200 | Sao Paulo, Brazil | 51-200 | Exact match | 215 contacts → |
“O nosso trabalho é proteger o seu.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Mindpoint Group, A Quantum SKY Companymindpointgroup.comHQ: Reston, VA, United StatesReported employees: 1,001-5,000 | Reston, VA, United States | 1,001-5,000 | Exact match | 204 contacts → |
“MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Tevoratevora.comHQ: Irvine, CA, United StatesReported employees: 201-500 | Irvine, CA, United States | 201-500 | Exact match | 199 contacts → |
“Founded in 2003, Tevora is a specialized management consultancy focused on cybersecurity, risk, and compliance services.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Govertisgovertis.comHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 183 contacts → |
“Expertos en Ciberseguridad, Privacidad, GRC, IRM y Cumplimiento Normativo unificando la perspectiva Legal y Tecnológica GOVERTIS es la mayor firma de Advisory 100% especializada…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Armur Solucionesarmur.femsa.comHQ: Monterrey, MexicoReported employees: 1,001-5,000 | Monterrey, Mexico | 1,001-5,000 | Exact match | 181 contacts → |
“ARMUR nace de la iniciativa de unificar dos universos regidos por un mismo objetivo: reafirmar nuestra misión por ofrecer procesos de seguridad confiables, y una gestión de…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Matrix 2bsecure2bsecure.co.ilHQ: Tel Aviv, IsraelReported employees: 51-200 | Tel Aviv, Israel | 51-200 | Exact match | 180 contacts → |
“2Bsecure Ltd.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Insight Assuranceinsightassurance.comHQ: Tampa, FL, United StatesReported employees: 201-500 | Tampa, FL, United States | 201-500 | Exact match | 174 contacts → |
“Insight Assurance is a security and compliance firm trusted by more than 1,500 organizations for their SOC 1, SOC 2, SOC 3, PCI DSS, ISO 27001, ISO 27017/27018, ISO 27701, ISO…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Ampcus Cyberampcuscyber.comHQ: Chantilly, VA, United StatesReported employees: 1,001-5,000 | Chantilly, VA, United States | 1,001-5,000 | Exact match | 170 contacts → |
“Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 7,566 company matches
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Due diligence security firms: dataset insights
September 28, 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
7,555 records in the displayed employee bands.
11 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 7,566 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: September 28, 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 security firms by location
53 lists · largest firstEvery Due diligence security firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Due diligence security firms based in the United States2,163
- Due diligence security firms based in the United Kingdom468
- Due diligence security firms based in India386
- Due diligence security firms based in France271
- Due diligence security firms based in Canada265
- Due diligence security firms based in Germany258
- Due diligence security firms based in Brazil243
- Due diligence security firms based in Australia229
- Due diligence security firms based in the Netherlands144
- Due diligence security firms based in Mexico107
- Due diligence security firms based in Italy97
- Due diligence security firms based in Spain96
- Due diligence security firms based in Switzerland79
- Due diligence security firms based in the United Arab Emirates77
- Due diligence security firms based in South Africa76
- Due diligence security firms based in Sweden75
- Due diligence security firms based in Colombia66
- Due diligence security firms based in Israel64
- Due diligence security firms based in Belgium53
- Due diligence security firms based in Poland51
- Due diligence security firms based in Chile49
- Due diligence security firms based in Türkiye47
- Due diligence security firms based in Argentina46
- Due diligence security firms based in New Zealand36
- Due diligence security firms based in Austria29
- Due diligence security firms based in Indonesia29
- Due diligence security firms based in Denmark28
- Due diligence security firms based in Romania28
- Due diligence security firms based in Ireland27
- Due diligence security firms based in Saudi Arabia25
Cities
- Due diligence security firms based in London, United Kingdom161
- Due diligence security firms based in Sao Paulo, Brazil88
- Due diligence security firms based in Paris, France77
- Due diligence security firms based in Toronto, Canada64
- Due diligence security firms based in Bangalore, India59
- Due diligence security firms based in New York, United States58
- Due diligence security firms based in Dubai, United Arab Emirates47
- Due diligence security firms based in Atlanta, United States46
- Due diligence security firms based in Melbourne, Australia46
- Due diligence security firms based in Sydney, Australia44
- Due diligence security firms based in Washington, United States43
- Due diligence security firms based in Houston, United States42
- Due diligence security firms based in Tampa, United States38
- Due diligence security firms based in Stockholm, Sweden37
- Due diligence security firms based in San Francisco, United States32
- Due diligence security firms based in Chicago, United States30
- Due diligence security firms based in Calgary, Canada29
- Due diligence security firms based in Mumbai, India27
- Due diligence security firms based in Pune, India27
- Due diligence security firms based in Chennai, India26
- Due diligence security firms based in Los Angeles, United States25
- Due diligence security firms based in Miami, United States25
- Due diligence security firms based in Ottawa, Canada25
Questions about this company list
What does Exact match mean for due diligence security firms?
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 security firms did RevenueBase find worldwide?
The saved snapshot records 7,566 matching company records, 75,962 tracked contacts and 17,249 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: September 28, 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.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 due diligence security firms worldwide. Snapshot: September 28, 2026. https://revenuebase.ai/companies/browse/due-diligence-security-firms.
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 security firms worldwide
RevenueBase records 7,566 matching company records for due diligence security firms worldwide, with 75,962 tracked contacts and 17,249 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: September 28, 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 security firms 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 | Private Sectorlockervault.com HQ: United StatesReported employees: Not recorded | United States | Not recorded | Exact match | 12,771 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 2 | First Security Group LLCfirstsg.com HQ: Dubai, United Arab EmiratesReported employees: 5,001-10,000 | Dubai, United Arab Emirates | 5,001-10,000 | Exact match | 1,374 contacts → |
“First Security Group LLC was founded in 2004 with the vision of His Highness, the Vice President, Prime Minister, and Ruler of Dubai, Sheikh Mohamed bin Rashid Al Maktoum.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Guidepoint Securityguidepointsecurity.com HQ: Reston, VA, United StatesReported employees: 1,001-5,000 | Reston, VA, United States | 1,001-5,000 | Exact match | 1,232 contacts → |
“GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Onet Sécuritéonet.fr HQ: Marseille, FranceReported employees: 10001+ | Marseille, France | 10001+ | Exact match | 1,007 contacts → |
“La proposition de valeur d'Onet dans la sécurité se fonde sur - son expertise sécurité et sa capacité à analyser les besoins et risques propres à ses clients- sa parfaite maîtrise…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Aujas Cybersecurityaujas.com HQ: Cupertino, CA, United StatesReported employees: 1,001-5,000 | Cupertino, CA, United States | 1,001-5,000 | Exact match | 473 contacts → |
“At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Safewaysafewayconsultoria.com HQ: Sao Paulo, BrazilReported employees: 201-500 | Sao Paulo, Brazil | 201-500 | Exact match | 399 contacts → |
“A SAFEWAY empresa que integra a plataforma de cibersegurança do Grupo Stefanini se une a Protega.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Esec Forte Technologiesesecforte.com HQ: Gurugram, IndiaReported employees: 201-500 | Gurugram, India | 201-500 | Exact match | 363 contacts → |
“eSec Forte® Technologies is a CMMi Level 3 certified Global Consulting and IT Security Services company with offerings across Cloud Security, Cyber Forensics, Malware Detection…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Talakunchi Networks PVT LTDtalakunchi.com HQ: Mumbai, IndiaReported employees: 201-500 | Mumbai, India | 201-500 | Exact match | 335 contacts → |
“T A L A K U N C H I Networks Pvt.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Nviso Securitynviso.eu HQ: Brussels, BelgiumReported employees: 201-500 | Brussels, Belgium | 201-500 | Exact match | 315 contacts → |
“NVISO is a cyber security services firm composed of outstanding security professionals - each has a specific field of expertise, ranging from security research and risk management…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Grupo Liberdadegrupoliberdade.com.br HQ: São Paulo, BrazilReported employees: 1,001-5,000 | São Paulo, Brazil | 1,001-5,000 | Exact match | 304 contacts → |
“Há mais de 25 anos no mercado, com atuação nacional e com uma estrutura moderna, o Grupo Liberdade tem se destacado na execução de serviços de segurança que não se limitam a…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Prescient Securityprescientsecurity.com HQ: Nashville, TN, United StatesReported employees: 201-500 | Nashville, TN, United States | 201-500 | Exact match | 272 contacts → |
“Prescient Security is a global cybersecurity and compliance firm delivering risk-based audits, advanced penetration testing, and end-to-end framework support.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Guidepost Solutionsguidepostsolutions.com HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 268 contacts → |
“We stand at the forefront of leadership, insight, and guidance in a world marked by complexity and uncertainty.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Baxter Clewis Cybersecuritybaxterclewis.com HQ: Cedar Hill, TX, United StatesReported employees: 201-500 | Cedar Hill, TX, United States | 201-500 | Exact match | 255 contacts → |
“Baxter Clewis Cybersecurity, we bring to the table a unique set of experiences that allow us to best serve your cybersecurity needs.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Ndimensionz Solutions PVT LTDndimensionz.com HQ: Cochin, IndiaReported employees: 201-500 | Cochin, India | 201-500 | Exact match | 252 contacts → |
“NdimensionZ Solutions Pvt Ltd is an ISO 9001:2015 and ISO/IEC 27001:2013 certified, technology and service oriented company headquartered at major IT hub in India.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Netrika Consulting India PVT LTDnetrika.com HQ: Gurgaon, IndiaReported employees: 201-500 | Gurgaon, India | 201-500 | Exact match | 247 contacts → |
“Netrika Consulting India stands as a preeminent global leader in emerging and frontier markets, providing unparalleled integrity management and risk mitigation services.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Meta Infotech Limitedmetainfotech.com HQ: Mumbai, IndiaReported employees: 201-500 | Mumbai, India | 201-500 | Exact match | 238 contacts → |
“Established 26 years ago, Meta Infotech has been a trusted name in Cyber and IT Risk Assessment Services, Cybersecurity Product Consulting, Implementation & Sustenance Services…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Cyraacscyraacs.com HQ: Bengaluru, IndiaReported employees: 51-200 | Bengaluru, India | 51-200 | Exact match | 221 contacts → |
“CYRAAC Services Private Limited (CyRAACS) is a leading, technology-first cybersecurity consulting and advisory firm headquartered in India, empanelled with CERT-In and accredited…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Redbelt Securityredbelt.com.br HQ: Sao Paulo, BrazilReported employees: 51-200 | Sao Paulo, Brazil | 51-200 | Exact match | 215 contacts → |
“O nosso trabalho é proteger o seu.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Mindpoint Group, A Quantum SKY Companymindpointgroup.com HQ: Reston, VA, United StatesReported employees: 1,001-5,000 | Reston, VA, United States | 1,001-5,000 | Exact match | 204 contacts → |
“MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Tevoratevora.com HQ: Irvine, CA, United StatesReported employees: 201-500 | Irvine, CA, United States | 201-500 | Exact match | 199 contacts → |
“Founded in 2003, Tevora is a specialized management consultancy focused on cybersecurity, risk, and compliance services.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Govertisgovertis.com HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 183 contacts → |
“Expertos en Ciberseguridad, Privacidad, GRC, IRM y Cumplimiento Normativo unificando la perspectiva Legal y Tecnológica GOVERTIS es la mayor firma de Advisory 100% especializada…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Armur Solucionesarmur.femsa.com HQ: Monterrey, MexicoReported employees: 1,001-5,000 | Monterrey, Mexico | 1,001-5,000 | Exact match | 181 contacts → |
“ARMUR nace de la iniciativa de unificar dos universos regidos por un mismo objetivo: reafirmar nuestra misión por ofrecer procesos de seguridad confiables, y una gestión de…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Matrix 2bsecure2bsecure.co.il HQ: Tel Aviv, IsraelReported employees: 51-200 | Tel Aviv, Israel | 51-200 | Exact match | 180 contacts → |
“2Bsecure Ltd.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Insight Assuranceinsightassurance.com HQ: Tampa, FL, United StatesReported employees: 201-500 | Tampa, FL, United States | 201-500 | Exact match | 174 contacts → |
“Insight Assurance is a security and compliance firm trusted by more than 1,500 organizations for their SOC 1, SOC 2, SOC 3, PCI DSS, ISO 27001, ISO 27017/27018, ISO 27701, ISO…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Ampcus Cyberampcuscyber.com HQ: Chantilly, VA, United StatesReported employees: 1,001-5,000 | Chantilly, VA, United States | 1,001-5,000 | Exact match | 170 contacts → |
“Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 7,566 company matches
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Due diligence security firms: dataset insights
September 28, 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
7,555 records in the displayed employee bands.
11 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 7,566 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: September 28, 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 security firms by location
53 lists · largest firstEvery Due diligence security firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Due diligence security firms based in the United States2,163
- Due diligence security firms based in the United Kingdom468
- Due diligence security firms based in India386
- Due diligence security firms based in France271
- Due diligence security firms based in Canada265
- Due diligence security firms based in Germany258
- Due diligence security firms based in Brazil243
- Due diligence security firms based in Australia229
- Due diligence security firms based in the Netherlands144
- Due diligence security firms based in Mexico107
- Due diligence security firms based in Italy97
- Due diligence security firms based in Spain96
- Due diligence security firms based in Switzerland79
- Due diligence security firms based in the United Arab Emirates77
- Due diligence security firms based in South Africa76
- Due diligence security firms based in Sweden75
- Due diligence security firms based in Colombia66
- Due diligence security firms based in Israel64
- Due diligence security firms based in Belgium53
- Due diligence security firms based in Poland51
- Due diligence security firms based in Chile49
- Due diligence security firms based in Türkiye47
- Due diligence security firms based in Argentina46
- Due diligence security firms based in New Zealand36
- Due diligence security firms based in Austria29
- Due diligence security firms based in Indonesia29
- Due diligence security firms based in Denmark28
- Due diligence security firms based in Romania28
- Due diligence security firms based in Ireland27
- Due diligence security firms based in Saudi Arabia25
Cities
- Due diligence security firms based in London, United Kingdom161
- Due diligence security firms based in Sao Paulo, Brazil88
- Due diligence security firms based in Paris, France77
- Due diligence security firms based in Toronto, Canada64
- Due diligence security firms based in Bangalore, India59
- Due diligence security firms based in New York, United States58
- Due diligence security firms based in Dubai, United Arab Emirates47
- Due diligence security firms based in Atlanta, United States46
- Due diligence security firms based in Melbourne, Australia46
- Due diligence security firms based in Sydney, Australia44
- Due diligence security firms based in Washington, United States43
- Due diligence security firms based in Houston, United States42
- Due diligence security firms based in Tampa, United States38
- Due diligence security firms based in Stockholm, Sweden37
- Due diligence security firms based in San Francisco, United States32
- Due diligence security firms based in Chicago, United States30
- Due diligence security firms based in Calgary, Canada29
- Due diligence security firms based in Mumbai, India27
- Due diligence security firms based in Pune, India27
- Due diligence security firms based in Chennai, India26
- Due diligence security firms based in Los Angeles, United States25
- Due diligence security firms based in Miami, United States25
- Due diligence security firms based in Ottawa, Canada25
Questions about this company list
What does Exact match mean for due diligence security firms?
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 security firms did RevenueBase find worldwide?
The saved snapshot records 7,566 matching company records, 75,962 tracked contacts and 17,249 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: September 28, 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.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 due diligence security firms worldwide. Snapshot: September 28, 2026. https://revenuebase.ai/companies/browse/due-diligence-security-firms.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗