Company lists · Data refreshed November 2026
Top 25 Security due diligence firms worldwide
RevenueBase identified 1,047 company matches for security due diligence firms worldwide as of November 2026 and tracks 9,113 professional contacts across them, including 1,921 with verified work emails. India is the largest market and London the largest hub.
This list covers company matches for security due diligence firms worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026. Country and city lists for security due diligence firms follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest security due diligence firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,080 contacts → | ||||
Exact match “Brosnan Risk Consultants, Ltd.(BRC) is a security risk management firm focusing on physical security, emergency security, disaster preparedness and recovery and management…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 2 | 292 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 3 | 243 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 4 | 223 contacts → | ||||
Exact match “PSI is a Service Disabled Veteran Owned Small Business (SDVOSB) that engages industry recognized professionals worldwide to provide comprehensive security solutions and personnel…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 5 | 215 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 6 | 202 contacts → | ||||
Exact match “Brindamos soluciones de seguridad integral con un sólo propósito: Su tranquilidad.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 7 | 180 contacts → | ||||
Exact match “MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 8 | 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 5, 2026 · View company records in RevenueBase | |||||
| 9 | 125 contacts → | ||||
Exact match “E.K.G.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 10 | 118 contacts → | ||||
Exact match “En CSI Consultores, construimos vínculos de confianza y transparencia para las empresas, siendo sus aliados estratégicos por medio de la ejecución impecable de estudios de…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 11 | 112 contacts → | ||||
Exact match “2Secure har sedan starten 2006 varit en marknadsledande helhetsleverantör av professionell säkerhetsrådgivning och kvalificerade säkerhetstjänster.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 12 | 111 contacts → | ||||
Exact match “Alomra is a privately owned comapany organised in 5 different departments 1/ Strategy 2/ Security engineering and advisory 3/ Business Intelligence 4/ Safety process 5/ Trainning” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 13 | 99 contacts → | ||||
Exact match “Bastion Security combines the skills, expertise and leadership from Quantum Security, ZX Security, Helix Security, Cassini and now Cythera.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 14 | 94 contacts → | ||||
Exact match “Sua Corp es una consultoría de seguridad privada e independiente formada por prestigiosos profesionales con reconocida experiencia en el sector de la seguridad privada y…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 15 | 85 contacts → | ||||
Exact match “Since 2001, softScheck has been a prominent advocate for software security, dedicated to complying with ISO27034 and Microsoft Security Dev.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 16 | 85 contacts → | ||||
Exact match “ISSM (International Safety Security Management) is the leading provider of security protective services.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 17 | 66 contacts → | ||||
Exact match “Live investigator-led analysis is the best way to minimize regulatory, reputational and financial risks.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 18 | 55 contacts → | ||||
Exact match “Blackpeak is dedicated to uncovering critical risks for our clients worldwide.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 19 | 55 contacts → | ||||
Exact match “Mahindra Special Services Group (MSSG), is a leading Corporate Security Risk Consulting firm that helps organizations reduce risk, transform businesses, and enhance competitive…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 20 | 53 contacts → | ||||
Exact match “Security Brigade InfoSec Pvt.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 21 | 53 contacts → | ||||
Exact match “A VIWSEC foi fundada em para proteção de serviços corporativos e de e-commerce no início da Internet empresarial no Brasil.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 22 | 48 contacts → | ||||
Exact match “Founded in 2010, Secure Ideas is a small-business consulting firm.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 23 | 48 contacts → | ||||
Exact match “Somos una empresa formada por expertos en seguridad con más de 20 años de experiencia y trayectoria, que observaron la necesidad de brindar servicios acorde a las necesidades…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 24 | 43 contacts → | ||||
Exact match “Global Security & Innovative Strategies (GSIS) leverages its extensive private sector, homeland, public security, public sector and international expertise to provide…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 25 | 39 contacts → | ||||
Exact match “We keep organizations and their people safer through holistic security solutions.” Recorded in the RevenueBase company graph · Nov 5, 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 “security due diligence 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 1,047 security due diligence firms worldwide
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Security due diligence firms worldwide at a glance
As of Nov 5, 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 security due diligence firms are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “security due diligence firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 1,921 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 5, 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.
Security due diligence firms by location
62 lists · largest firstEvery Security due diligence firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Security due diligence firms based in India665
- Security due diligence firms based in the United States408
- Security due diligence firms based in France253
- Security due diligence firms based in Australia213
- Security due diligence firms based in Brazil208
- Security due diligence firms based in Germany202
- Security due diligence firms based in the Netherlands150
- Security due diligence firms based in the United Arab Emirates120
- Security due diligence firms based in Spain115
- Security due diligence firms based in South Africa86
- Security due diligence firms based in Italy81
- Security due diligence firms based in Mexico79
- Security due diligence firms based in Israel78
- Security due diligence firms based in Switzerland75
- Security due diligence firms based in the United Kingdom75
- Security due diligence firms based in Poland61
- Security due diligence firms based in Belgium59
- Security due diligence firms based in Chile56
- Security due diligence firms based in Türkiye53
- Security due diligence firms based in Singapore50
- Security due diligence firms based in Sweden48
- Security due diligence firms based in Saudi Arabia44
- Security due diligence firms based in Colombia41
- Security due diligence firms based in Argentina37
- Security due diligence firms based in Indonesia36
- Security due diligence firms based in Ireland36
- Security due diligence firms based in New Zealand36
- Security due diligence firms based in Austria32
- Security due diligence firms based in Romania31
- Security due diligence firms based in Canada26
Cities
- Security due diligence firms based in Paris, France87
- Security due diligence firms based in Sao Paulo, Brazil79
- Security due diligence firms based in Toronto, Canada74
- Security due diligence firms based in New York, United States66
- Security due diligence firms based in Dubai, United Arab Emirates65
- Security due diligence firms based in Pune, India56
- Security due diligence firms based in Atlanta, United States52
- Security due diligence firms based in Mumbai, India51
- Security due diligence firms based in Tampa, United States50
- Security due diligence firms based in Bangalore, India48
- Security due diligence firms based in Melbourne, Australia48
- Security due diligence firms based in Washington, United States48
- Security due diligence firms based in Houston, United States47
- Security due diligence firms based in Hyderabad, India47
- Security due diligence firms based in Singapore, Singapore45
- Security due diligence firms based in Sydney, Australia45
- Security due diligence firms based in Chicago, United States44
- Security due diligence firms based in Chennai, India43
- Security due diligence firms based in Austin, United States41
- Security due diligence firms based in San Francisco, United States39
- Security due diligence firms based in Miami, United States38
- Security due diligence firms based in Ahmedabad, India36
- Security due diligence firms based in Dallas, United States34
- Security due diligence firms based in London, United Kingdom34
- Security due diligence firms based in Noida, India34
- Security due diligence firms based in Madrid, Spain32
- Security due diligence firms based in Los Angeles, United States31
- Security due diligence firms based in Stockholm, Sweden31
- Security due diligence firms based in Montreal, Canada26
- Security due diligence firms based in Riyadh, Saudi Arabia26
- Security due diligence firms based in Seattle, United States26
- Security due diligence firms based in San Diego, United States25
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 “security due diligence firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many security due diligence firms are there worldwide?
RevenueBase identified 1,047 company matches for security due diligence firms 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?
Brosnan Risk Consultants tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most security due diligence firms?
India leads with 665 companies, followed by the United States (408) and France (253). Every security due diligence firms list by country and city is linked on this page.
Which city has the most security due diligence firms?
London leads with 34 company records, followed by Miami (11) and New York (11).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,921 professional contacts with verified work emails tracked across these 1,047 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 5, 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 security due diligence 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 1,047 matching company records for security due diligence firms worldwide, with 9,113 tracked contacts and 1,921 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 5, 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 security due diligence 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 |  Brosnan Risk Consultantsbrosnanrisk.comHQ: Pearl River, CA, United StatesReported employees: 5,001-10,000 | Pearl River, CA, United States | 5,001-10,000 | Exact match | 1,080 contacts → |
“Brosnan Risk Consultants, Ltd.(BRC) is a security risk management firm focusing on physical security, emergency security, disaster preparedness and recovery and management…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Guidepost Solutionsguidepostsolutions.comHQ: New York, IL, United StatesReported employees: 201-500 | New York, IL, United States | 201-500 | Exact match | 292 contacts → |
“We stand at the forefront of leadership, insight, and guidance in a world marked by complexity and uncertainty.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Baxter Clewis Cybersecuritybaxterclewis.comHQ: Cedar Hill, TX, United StatesReported employees: 201-500 | Cedar Hill, TX, United States | 201-500 | Exact match | 243 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Protection Strategies Incorporatedprotectionsi.comHQ: Knoxville, TN, United StatesReported employees: 201-500 | Knoxville, TN, United States | 201-500 | Exact match | 223 contacts → |
“PSI is a Service Disabled Veteran Owned Small Business (SDVOSB) that engages industry recognized professionals worldwide to provide comprehensive security solutions and personnel…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Cyraacscyraacs.comHQ: Bangalore, IndiaReported employees: 51-200 | Bangalore, India | 51-200 | Exact match | 215 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Grupo DE Seguridad Celarcelar.com.coHQ: Bogotá, ColombiaReported employees: 201-500 | Bogotá, Colombia | 201-500 | Exact match | 202 contacts → |
“Brindamos soluciones de seguridad integral con un sólo propósito: Su tranquilidad.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  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 | 180 contacts → |
“MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  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 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  EKG Security, INCekgsecurity.comHQ: Vidalia, GA, United StatesReported employees: 201-500 | Vidalia, GA, United States | 201-500 | Exact match | 125 contacts → |
“E.K.G.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  CSI Consultorescsiconsultores.comHQ: Medellin, ColombiaReported employees: 11-50 | Medellin, Colombia | 11-50 | Exact match | 118 contacts → |
“En CSI Consultores, construimos vínculos de confianza y transparencia para las empresas, siendo sus aliados estratégicos por medio de la ejecución impecable de estudios de…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  2secure2secure.seHQ: Stockholm, SwedenReported employees: 51-200 | Stockholm, Sweden | 51-200 | Exact match | 112 contacts → |
“2Secure har sedan starten 2006 varit en marknadsledande helhetsleverantör av professionell säkerhetsrådgivning och kvalificerade säkerhetstjänster.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Alomra Group Internationalalomragroup.comHQ: MoroccoReported employees: 11-50 | Morocco | 11-50 | Exact match | 111 contacts → |
“Alomra is a privately owned comapany organised in 5 different departments 1/ Strategy 2/ Security engineering and advisory 3/ Business Intelligence 4/ Safety process 5/ Trainning” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Bastion Security Groupbastionsecurity.co.nzHQ: Wellington, New ZealandReported employees: 51-200 | Wellington, New Zealand | 51-200 | Exact match | 99 contacts → |
“Bastion Security combines the skills, expertise and leadership from Quantum Security, ZX Security, Helix Security, Cassini and now Cythera.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  SUA Corpsuacorp.comHQ: Barcelona, SpainReported employees: 11-50 | Barcelona, Spain | 11-50 | Exact match | 94 contacts → |
“Sua Corp es una consultoría de seguridad privada e independiente formada por prestigiosos profesionales con reconocida experiencia en el sector de la seguridad privada y…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Softscheck Apacsoftscheck-apac.comHQ: SingaporeReported employees: 51-200 | Singapore | 51-200 | Exact match | 85 contacts → |
“Since 2001, softScheck has been a prominent advocate for software security, dedicated to complying with ISO27034 and Microsoft Security Dev.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Issm Protective Services INCissm.comHQ: Toms River, MA, United StatesReported employees: 501-1,000 | Toms River, MA, United States | 501-1,000 | Exact match | 85 contacts → |
“ISSM (International Safety Security Management) is the leading provider of security protective services.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Kreller Groupkreller.comHQ: Cincinnati, OH, United StatesReported employees: 11-50 | Cincinnati, OH, United States | 11-50 | Exact match | 66 contacts → |
“Live investigator-led analysis is the best way to minimize regulatory, reputational and financial risks.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Blackpeakionanalytics.comHQ: Beijing, Hong KongReported employees: 51-200 | Beijing, Hong Kong | 51-200 | Exact match | 55 contacts → |
“Blackpeak is dedicated to uncovering critical risks for our clients worldwide.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Mahindra Special Services Groupmahindra.comHQ: Mumbai, IndiaReported employees: 201-500 | Mumbai, India | 201-500 | Exact match | 55 contacts → |
“Mahindra Special Services Group (MSSG), is a leading Corporate Security Risk Consulting firm that helps organizations reduce risk, transform businesses, and enhance competitive…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Security Brigadesecuritybrigade.comHQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 53 contacts → |
“Security Brigade InfoSec Pvt.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Viwsecviwsec.com.brHQ: Barueri, BrazilReported employees: 11-50 | Barueri, Brazil | 11-50 | Exact match | 53 contacts → |
“A VIWSEC foi fundada em para proteção de serviços corporativos e de e-commerce no início da Internet empresarial no Brasil.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Secure Ideas, LLCsecureideas.comHQ: Jacksonville, FL, United StatesReported employees: 11-50 | Jacksonville, FL, United States | 11-50 | Exact match | 48 contacts → |
“Founded in 2010, Secure Ideas is a small-business consulting firm.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Consultora DE Seguridad Integral S.A. Consisaconsisa.com.arHQ: Vicente López, ArgentinaReported employees: 201-500 | Vicente López, Argentina | 201-500 | Exact match | 48 contacts → |
“Somos una empresa formada por expertos en seguridad con más de 20 años de experiencia y trayectoria, que observaron la necesidad de brindar servicios acorde a las necesidades…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 43 contacts → |
“Global Security & Innovative Strategies (GSIS) leverages its extensive private sector, homeland, public security, public sector and international expertise to provide…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Fortified Risk Groupfortifiedrisk.comHQ: Nashville, TN, United StatesReported employees: 51-200 | Nashville, TN, United States | 51-200 | Exact match | 39 contacts → |
“We keep organizations and their people safer through holistic security solutions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,047 company matches
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Security due diligence firms: dataset insights
November 5, 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
1,041 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 1,047 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 5, 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 ↗
Security due diligence firms by location
62 lists · largest firstEvery Security due diligence firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Security due diligence firms based in India665
- Security due diligence firms based in the United States408
- Security due diligence firms based in France253
- Security due diligence firms based in Australia213
- Security due diligence firms based in Brazil208
- Security due diligence firms based in Germany202
- Security due diligence firms based in the Netherlands150
- Security due diligence firms based in the United Arab Emirates120
- Security due diligence firms based in Spain115
- Security due diligence firms based in South Africa86
- Security due diligence firms based in Italy81
- Security due diligence firms based in Mexico79
- Security due diligence firms based in Israel78
- Security due diligence firms based in Switzerland75
- Security due diligence firms based in the United Kingdom75
- Security due diligence firms based in Poland61
- Security due diligence firms based in Belgium59
- Security due diligence firms based in Chile56
- Security due diligence firms based in Türkiye53
- Security due diligence firms based in Singapore50
- Security due diligence firms based in Sweden48
- Security due diligence firms based in Saudi Arabia44
- Security due diligence firms based in Colombia41
- Security due diligence firms based in Argentina37
- Security due diligence firms based in Indonesia36
- Security due diligence firms based in Ireland36
- Security due diligence firms based in New Zealand36
- Security due diligence firms based in Austria32
- Security due diligence firms based in Romania31
- Security due diligence firms based in Canada26
Cities
- Security due diligence firms based in Paris, France87
- Security due diligence firms based in Sao Paulo, Brazil79
- Security due diligence firms based in Toronto, Canada74
- Security due diligence firms based in New York, United States66
- Security due diligence firms based in Dubai, United Arab Emirates65
- Security due diligence firms based in Pune, India56
- Security due diligence firms based in Atlanta, United States52
- Security due diligence firms based in Mumbai, India51
- Security due diligence firms based in Tampa, United States50
- Security due diligence firms based in Bangalore, India48
- Security due diligence firms based in Melbourne, Australia48
- Security due diligence firms based in Washington, United States48
- Security due diligence firms based in Houston, United States47
- Security due diligence firms based in Hyderabad, India47
- Security due diligence firms based in Singapore, Singapore45
- Security due diligence firms based in Sydney, Australia45
- Security due diligence firms based in Chicago, United States44
- Security due diligence firms based in Chennai, India43
- Security due diligence firms based in Austin, United States41
- Security due diligence firms based in San Francisco, United States39
- Security due diligence firms based in Miami, United States38
- Security due diligence firms based in Ahmedabad, India36
- Security due diligence firms based in Dallas, United States34
- Security due diligence firms based in London, United Kingdom34
- Security due diligence firms based in Noida, India34
- Security due diligence firms based in Madrid, Spain32
- Security due diligence firms based in Los Angeles, United States31
- Security due diligence firms based in Stockholm, Sweden31
- Security due diligence firms based in Montreal, Canada26
- Security due diligence firms based in Riyadh, Saudi Arabia26
- Security due diligence firms based in Seattle, United States26
- Security due diligence firms based in San Diego, United States25
Questions about this company list
What does Exact match mean for security due diligence 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 security due diligence firms did RevenueBase find worldwide?
The saved snapshot records 1,047 matching company records, 9,113 tracked contacts and 1,921 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 5, 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 security due diligence firms worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/security-due-diligence-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 security due diligence firms worldwide
RevenueBase records 1,047 matching company records for security due diligence firms worldwide, with 9,113 tracked contacts and 1,921 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 5, 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 security due diligence 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 | Brosnan Risk Consultantsbrosnanrisk.com HQ: Pearl River, CA, United StatesReported employees: 5,001-10,000 | Pearl River, CA, United States | 5,001-10,000 | Exact match | 1,080 contacts → |
“Brosnan Risk Consultants, Ltd.(BRC) is a security risk management firm focusing on physical security, emergency security, disaster preparedness and recovery and management…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Guidepost Solutionsguidepostsolutions.com HQ: New York, IL, United StatesReported employees: 201-500 | New York, IL, United States | 201-500 | Exact match | 292 contacts → |
“We stand at the forefront of leadership, insight, and guidance in a world marked by complexity and uncertainty.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Baxter Clewis Cybersecuritybaxterclewis.com HQ: Cedar Hill, TX, United StatesReported employees: 201-500 | Cedar Hill, TX, United States | 201-500 | Exact match | 243 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Protection Strategies Incorporatedprotectionsi.com HQ: Knoxville, TN, United StatesReported employees: 201-500 | Knoxville, TN, United States | 201-500 | Exact match | 223 contacts → |
“PSI is a Service Disabled Veteran Owned Small Business (SDVOSB) that engages industry recognized professionals worldwide to provide comprehensive security solutions and personnel…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Cyraacscyraacs.com HQ: Bangalore, IndiaReported employees: 51-200 | Bangalore, India | 51-200 | Exact match | 215 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Grupo DE Seguridad Celarcelar.com.co HQ: Bogotá, ColombiaReported employees: 201-500 | Bogotá, Colombia | 201-500 | Exact match | 202 contacts → |
“Brindamos soluciones de seguridad integral con un sólo propósito: Su tranquilidad.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | 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 | 180 contacts → |
“MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | EKG Security, INCekgsecurity.com HQ: Vidalia, GA, United StatesReported employees: 201-500 | Vidalia, GA, United States | 201-500 | Exact match | 125 contacts → |
“E.K.G.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | CSI Consultorescsiconsultores.com HQ: Medellin, ColombiaReported employees: 11-50 | Medellin, Colombia | 11-50 | Exact match | 118 contacts → |
“En CSI Consultores, construimos vínculos de confianza y transparencia para las empresas, siendo sus aliados estratégicos por medio de la ejecución impecable de estudios de…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | 2secure2secure.se HQ: Stockholm, SwedenReported employees: 51-200 | Stockholm, Sweden | 51-200 | Exact match | 112 contacts → |
“2Secure har sedan starten 2006 varit en marknadsledande helhetsleverantör av professionell säkerhetsrådgivning och kvalificerade säkerhetstjänster.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Alomra Group Internationalalomragroup.com HQ: MoroccoReported employees: 11-50 | Morocco | 11-50 | Exact match | 111 contacts → |
“Alomra is a privately owned comapany organised in 5 different departments 1/ Strategy 2/ Security engineering and advisory 3/ Business Intelligence 4/ Safety process 5/ Trainning” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Bastion Security Groupbastionsecurity.co.nz HQ: Wellington, New ZealandReported employees: 51-200 | Wellington, New Zealand | 51-200 | Exact match | 99 contacts → |
“Bastion Security combines the skills, expertise and leadership from Quantum Security, ZX Security, Helix Security, Cassini and now Cythera.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | SUA Corpsuacorp.com HQ: Barcelona, SpainReported employees: 11-50 | Barcelona, Spain | 11-50 | Exact match | 94 contacts → |
“Sua Corp es una consultoría de seguridad privada e independiente formada por prestigiosos profesionales con reconocida experiencia en el sector de la seguridad privada y…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Softscheck Apacsoftscheck-apac.com HQ: SingaporeReported employees: 51-200 | Singapore | 51-200 | Exact match | 85 contacts → |
“Since 2001, softScheck has been a prominent advocate for software security, dedicated to complying with ISO27034 and Microsoft Security Dev.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Issm Protective Services INCissm.com HQ: Toms River, MA, United StatesReported employees: 501-1,000 | Toms River, MA, United States | 501-1,000 | Exact match | 85 contacts → |
“ISSM (International Safety Security Management) is the leading provider of security protective services.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Kreller Groupkreller.com HQ: Cincinnati, OH, United StatesReported employees: 11-50 | Cincinnati, OH, United States | 11-50 | Exact match | 66 contacts → |
“Live investigator-led analysis is the best way to minimize regulatory, reputational and financial risks.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Blackpeakionanalytics.com HQ: Beijing, Hong KongReported employees: 51-200 | Beijing, Hong Kong | 51-200 | Exact match | 55 contacts → |
“Blackpeak is dedicated to uncovering critical risks for our clients worldwide.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Mahindra Special Services Groupmahindra.com HQ: Mumbai, IndiaReported employees: 201-500 | Mumbai, India | 201-500 | Exact match | 55 contacts → |
“Mahindra Special Services Group (MSSG), is a leading Corporate Security Risk Consulting firm that helps organizations reduce risk, transform businesses, and enhance competitive…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Security Brigadesecuritybrigade.com HQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 53 contacts → |
“Security Brigade InfoSec Pvt.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Viwsecviwsec.com.br HQ: Barueri, BrazilReported employees: 11-50 | Barueri, Brazil | 11-50 | Exact match | 53 contacts → |
“A VIWSEC foi fundada em para proteção de serviços corporativos e de e-commerce no início da Internet empresarial no Brasil.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Secure Ideas, LLCsecureideas.com HQ: Jacksonville, FL, United StatesReported employees: 11-50 | Jacksonville, FL, United States | 11-50 | Exact match | 48 contacts → |
“Founded in 2010, Secure Ideas is a small-business consulting firm.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Consultora DE Seguridad Integral S.A. Consisaconsisa.com.ar HQ: Vicente López, ArgentinaReported employees: 201-500 | Vicente López, Argentina | 201-500 | Exact match | 48 contacts → |
“Somos una empresa formada por expertos en seguridad con más de 20 años de experiencia y trayectoria, que observaron la necesidad de brindar servicios acorde a las necesidades…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 43 contacts → |
“Global Security & Innovative Strategies (GSIS) leverages its extensive private sector, homeland, public security, public sector and international expertise to provide…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Fortified Risk Groupfortifiedrisk.com HQ: Nashville, TN, United StatesReported employees: 51-200 | Nashville, TN, United States | 51-200 | Exact match | 39 contacts → |
“We keep organizations and their people safer through holistic security solutions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,047 company matches
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Security due diligence firms: dataset insights
November 5, 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
1,041 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 1,047 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 5, 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 ↗
Security due diligence firms by location
62 lists · largest firstEvery Security due diligence firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Security due diligence firms based in India665
- Security due diligence firms based in the United States408
- Security due diligence firms based in France253
- Security due diligence firms based in Australia213
- Security due diligence firms based in Brazil208
- Security due diligence firms based in Germany202
- Security due diligence firms based in the Netherlands150
- Security due diligence firms based in the United Arab Emirates120
- Security due diligence firms based in Spain115
- Security due diligence firms based in South Africa86
- Security due diligence firms based in Italy81
- Security due diligence firms based in Mexico79
- Security due diligence firms based in Israel78
- Security due diligence firms based in Switzerland75
- Security due diligence firms based in the United Kingdom75
- Security due diligence firms based in Poland61
- Security due diligence firms based in Belgium59
- Security due diligence firms based in Chile56
- Security due diligence firms based in Türkiye53
- Security due diligence firms based in Singapore50
- Security due diligence firms based in Sweden48
- Security due diligence firms based in Saudi Arabia44
- Security due diligence firms based in Colombia41
- Security due diligence firms based in Argentina37
- Security due diligence firms based in Indonesia36
- Security due diligence firms based in Ireland36
- Security due diligence firms based in New Zealand36
- Security due diligence firms based in Austria32
- Security due diligence firms based in Romania31
- Security due diligence firms based in Canada26
Cities
- Security due diligence firms based in Paris, France87
- Security due diligence firms based in Sao Paulo, Brazil79
- Security due diligence firms based in Toronto, Canada74
- Security due diligence firms based in New York, United States66
- Security due diligence firms based in Dubai, United Arab Emirates65
- Security due diligence firms based in Pune, India56
- Security due diligence firms based in Atlanta, United States52
- Security due diligence firms based in Mumbai, India51
- Security due diligence firms based in Tampa, United States50
- Security due diligence firms based in Bangalore, India48
- Security due diligence firms based in Melbourne, Australia48
- Security due diligence firms based in Washington, United States48
- Security due diligence firms based in Houston, United States47
- Security due diligence firms based in Hyderabad, India47
- Security due diligence firms based in Singapore, Singapore45
- Security due diligence firms based in Sydney, Australia45
- Security due diligence firms based in Chicago, United States44
- Security due diligence firms based in Chennai, India43
- Security due diligence firms based in Austin, United States41
- Security due diligence firms based in San Francisco, United States39
- Security due diligence firms based in Miami, United States38
- Security due diligence firms based in Ahmedabad, India36
- Security due diligence firms based in Dallas, United States34
- Security due diligence firms based in London, United Kingdom34
- Security due diligence firms based in Noida, India34
- Security due diligence firms based in Madrid, Spain32
- Security due diligence firms based in Los Angeles, United States31
- Security due diligence firms based in Stockholm, Sweden31
- Security due diligence firms based in Montreal, Canada26
- Security due diligence firms based in Riyadh, Saudi Arabia26
- Security due diligence firms based in Seattle, United States26
- Security due diligence firms based in San Diego, United States25
Questions about this company list
What does Exact match mean for security due diligence 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 security due diligence firms did RevenueBase find worldwide?
The saved snapshot records 1,047 matching company records, 9,113 tracked contacts and 1,921 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 5, 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 security due diligence firms worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/security-due-diligence-firms.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗