Company lists · Data refreshed September 2026
Top 25 Iso 27001 audit services worldwide
RevenueBase identified 1,405 company matches for iso 27001 audit services worldwide as of September 2026 and tracks 8,128 professional contacts across them, including 2,220 with verified work emails. The United Kingdom is the largest market and London the largest hub.
This list covers company matches for iso 27001 audit services worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026. Country and city lists for iso 27001 audit services follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest iso 27001 audit services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 798 contacts → | ||||
Exact match “A-LIGN is the leading provider of high-quality, efficient cybersecurity compliance programs.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 2 | 189 contacts → | ||||
Exact match “DataGuard, the European leader in security and compliance software, is trusted by more than organizations across 50+ countries.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 3 | 186 contacts → | ||||
Exact match “IT support for businesses in London.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 4 | 181 contacts → | ||||
Exact match “QRC Assurance and Solutions has been a forerunner on the cybersecurity front, empanelled with CERT-in, certified to provide PCI DSS QSA, PA QSA, PCI 3DS, PCI SSF, ISO 27001, ISO…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 5 | 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 | |||||
| 6 | 111 contacts → | ||||
Exact match “B-SECURE provides information security services and technologies that enable organizations to improve their security posture, minimize risk levels and simplify compliance of laws…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 7 | 85 contacts → | ||||
Exact match “INTERCERT is a multinational auditing company headquartered in Texas, United States operating at 28+ countries.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 8 | 77 contacts → | ||||
Exact match “Ardur Technology an ISO 27001:2022 Certified organization is registered as a business unit in Las Vegas, USA.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 9 | 76 contacts → | ||||
Exact match “About Astral Consulting Limited Astral Consulting Limited is a Director-led consulting and advisory company helping businesses strengthen governance, improve performance, manage…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 10 | 69 contacts → | ||||
Exact match “We help our customers improve security, achieve certifications like ISO 27001, and comply with industry regulations like PCI.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 11 | 68 contacts → | ||||
Exact match “ShieldByte Infosec is now CERT-In Empanelled Auditor and leading cyber security company in India.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 12 | 67 contacts → | ||||
Exact match “Matrix3D, a CERT-In Empanelled organization, helps make your business secure and resilient through detailed IT assessments and audits, with clear gap analysis and strong…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 13 | 64 contacts → | ||||
Exact match “Pristine is a professional services firm offering audit, assurance services & consulting solutions in the areas of IT Security, IS Audits, Network Security, Computer Forensics…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 14 | 60 contacts → | ||||
Exact match “BTYÖN; bilgi güvenliği, iş sürekliliği ve bilgi teknolojileri yönetişimi alanlarında danışmanlık, eğitim, analiz ve değerlendirme hizmetleri sunmaktadır.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 15 | 59 contacts → | ||||
Exact match “Kratikal is an end to end cyber security solutions provider.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 16 | 57 contacts → | ||||
Exact match “Core Business Solutions specializes in the needs of small businesses seeking ISO 9001 certification.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 17 | 50 contacts → | ||||
Exact match “SGSISO/IEC 27001:2022ISO/IEC 27701:2019APPIoTTAF20SOC(113114)A ISOSOC ‣ ‣ ISSDU Security Advisory – CVE Research and Vulnerability” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 18 | 49 contacts → | ||||
Exact match “Auditoría y Consultoría | Ecuador Hansen-Holm está comprometida con la calidad y seguridad de la información que manejamos durante todo el proceso del servicio de auditoría…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 19 | 46 contacts → | ||||
Exact match “Johanson Group has provided Security & Compliance Audit Services to public and private companies in a variety of industries across the world.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 20 | 44 contacts → | ||||
Exact match “We're a full-service agency that helps organizations globally with their Cybersecurity, Data Protection, and Compliance requirements.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 21 | 44 contacts → | ||||
Exact match “Founded in 2015 by a group of IT security experts with the support of the Econocom Group, digital.security (~ 230 experts) aims to offer companies and government organisations…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 22 | 42 contacts → | ||||
Exact match “018-0040-10 018-0040-20 018-0040-30 018-0040-40 jis q 27001:2014 (iso/iec 27001:2013)(is 568941) iso 9001:2015 (fs 590113)” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 23 | 42 contacts → | ||||
Exact match “Experts in #Cybersecurity.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 24 | 40 contacts → | ||||
Exact match “Five Tattva a PCI QSA Company & CERT-IN Empanelled company, 5Tattva stands at the forefront of the global IT solutions and Managed Security Services landscape, specializing in…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 25 | 39 contacts → | ||||
Exact match “Digital Boundary Group is an Information Technology Security Assurance Services firm serving clients throughout North America since 2003.” 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 “iso 27001 audit services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 1,405 iso 27001 audit services worldwide
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Iso 27001 audit services 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 iso 27001 audit services are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “iso 27001 audit services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 2,220 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.
Iso 27001 audit services by location
12 lists · largest firstEvery Iso 27001 audit services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Iso 27001 audit services based in the United Kingdom127
- Iso 27001 audit services based in India112
- Iso 27001 audit services based in the United States108
- Iso 27001 audit services based in Germany87
- Iso 27001 audit services based in France68
- Iso 27001 audit services based in the Netherlands57
- Iso 27001 audit services based in Australia43
- Iso 27001 audit services based in Türkiye39
- Iso 27001 audit services based in Spain36
- Iso 27001 audit services based in Poland35
- Iso 27001 audit services based in Brazil33
Cities
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “iso 27001 audit services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many iso 27001 audit services are there worldwide?
RevenueBase identified 1,405 company matches for iso 27001 audit services 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?
A-Lign tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most iso 27001 audit services?
The United Kingdom leads with 127 companies, followed by India (112) and the United States (108). Every iso 27001 audit services list by country and city is linked on this page.
Which city has the most iso 27001 audit services?
London leads with 32 company records, followed by Istanbul (17) and Mumbai (15).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,220 professional contacts with verified work emails tracked across these 1,405 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.
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Company intelligence · public preview
Top 25 iso 27001 audit services worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,405 matching company records for iso 27001 audit services worldwide, with 8,128 tracked contacts and 2,220 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 iso 27001 audit services worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  A-Ligna-lign.comHQ: Tampa, FL, United StatesReported employees: 501-1,000 | Tampa, FL, United States | 501-1,000 | Exact match | 798 contacts → |
“A-LIGN is the leading provider of high-quality, efficient cybersecurity compliance programs.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Dataguarddataguard.comHQ: Munich, GermanyReported employees: 201-500 | Munich, Germany | 201-500 | Exact match | 189 contacts → |
“DataGuard, the European leader in security and compliance software, is trusted by more than organizations across 50+ countries.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  operum.techoperum.techHQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 186 contacts → |
“IT support for businesses in London.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  QRC Assurance And Solutionsqrcsolutionz.comHQ: Navi Mumbai, IndiaReported employees: 51-200 | Navi Mumbai, India | 51-200 | Exact match | 181 contacts → |
“QRC Assurance and Solutions has been a forerunner on the cybersecurity front, empanelled with CERT-in, certified to provide PCI DSS QSA, PA QSA, PCI 3DS, PCI SSF, ISO 27001, ISO…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  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. | |||||
| 6 |  B-Secureb-secure.coHQ: Bogotá, ColombiaReported employees: 51-200 | Bogotá, Colombia | 51-200 | Exact match | 111 contacts → |
“B-SECURE provides information security services and technologies that enable organizations to improve their security posture, minimize risk levels and simplify compliance of laws…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Intercert INCintercert.comHQ: The Woodlands, TX, United StatesReported employees: 51-200 | The Woodlands, TX, United States | 51-200 | Exact match | 85 contacts → |
“INTERCERT is a multinational auditing company headquartered in Texas, United States operating at 28+ countries.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Ardur Technology LLCardurtechnology.com HQ: Las Vegas, NV, United StatesReported employees: 201-500 | Las Vegas, NV, United States | 201-500 | Exact match | 77 contacts → |
“Ardur Technology an ISO 27001:2022 Certified organization is registered as a business unit in Las Vegas, USA.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Astral Consulting LTDastralconsultants.comHQ: Coimbatore, IndiaReported employees: 51-200 | Coimbatore, India | 51-200 | Exact match | 76 contacts → |
“About Astral Consulting Limited Astral Consulting Limited is a Director-led consulting and advisory company helping businesses strengthen governance, improve performance, manage…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Hackmetrixhackmetrix.comHQ: Miguel Hidalgo, MexicoReported employees: 51-200 | Miguel Hidalgo, Mexico | 51-200 | Exact match | 69 contacts → |
“We help our customers improve security, achieve certifications like ISO 27001, and comply with industry regulations like PCI.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Shieldbyte Infosec Pvt. LTDshieldbyteinfosec.comHQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 68 contacts → |
“ShieldByte Infosec is now CERT-In Empanelled Auditor and leading cyber security company in India.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Matrix3d Infocom Private LTDmatrix3d.comHQ: Mumbai, IndiaReported employees: 11-50 | Mumbai, India | 11-50 | Exact match | 67 contacts → |
“Matrix3D, a CERT-In Empanelled organization, helps make your business secure and resilient through detailed IT assessments and audits, with clear gap analysis and strong…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Pristine Consultingpriscons.comHQ: Chennai, IndiaReported employees: 11-50 | Chennai, India | 11-50 | Exact match | 64 contacts → |
“Pristine is a professional services firm offering audit, assurance services & consulting solutions in the areas of IT Security, IS Audits, Network Security, Computer Forensics…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Btyon Consultancybtyon.com.trHQ: İstanbul, TürkiyeReported employees: 11-50 | İstanbul, Türkiye | 11-50 | Exact match | 60 contacts → |
“BTYÖN; bilgi güvenliği, iş sürekliliği ve bilgi teknolojileri yönetişimi alanlarında danışmanlık, eğitim, analiz ve değerlendirme hizmetleri sunmaktadır.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Kratikalkratikal.com HQ: Noida, IndiaReported employees: 51-200 | Noida, India | 51-200 | Exact match | 59 contacts → |
“Kratikal is an end to end cyber security solutions provider.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Core Business Solutionsthecoresolution.com HQ: Lewisburg, PA, United StatesReported employees: 11-50 | Lewisburg, PA, United States | 11-50 | Exact match | 57 contacts → |
“Core Business Solutions specializes in the needs of small businesses seeking ISO 9001 certification.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: 台北市, TaiwanReported employees: 51-200 | 台北市, Taiwan | 51-200 | Exact match | 50 contacts → |
“SGSISO/IEC 27001:2022ISO/IEC 27701:2019APPIoTTAF20SOC(113114)A ISOSOC ‣ ‣ ISSDU Security Advisory – CVE Research and Vulnerability” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Hansen-Holmhansen-holm.comHQ: Guayaquil, EcuadorReported employees: 51-200 | Guayaquil, Ecuador | 51-200 | Exact match | 49 contacts → |
“Auditoría y Consultoría | Ecuador Hansen-Holm está comprometida con la calidad y seguridad de la información que manejamos durante todo el proceso del servicio de auditoría…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Johanson Group LLPjohansonllp.comHQ: Colorado Springs, CO, United StatesReported employees: 51-200 | Colorado Springs, CO, United States | 51-200 | Exact match | 46 contacts → |
“Johanson Group has provided Security & Compliance Audit Services to public and private companies in a variety of industries across the world.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Allendevaux & Companyallendevaux.comHQ: Dayton, OH, United StatesReported employees: 11-50 | Dayton, OH, United States | 11-50 | Exact match | 44 contacts → |
“We're a full-service agency that helps organizations globally with their Cybersecurity, Data Protection, and Compliance requirements.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  digital.securityeviden.comHQ: Bezons, FranceReported employees: 201-500 | Bezons, France | 201-500 | Exact match | 44 contacts → |
“Founded in 2015 by a group of IT security experts with the support of the Econocom Group, digital.security (~ 230 experts) aims to offer companies and government organisations…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HQ: 中央区, JapanReported employees: 201-500 | 中央区, Japan | 201-500 | Exact match | 42 contacts → |
“018-0040-10 018-0040-20 018-0040-30 018-0040-40 jis q 27001:2014 (iso/iec 27001:2013)(is 568941) iso 9001:2015 (fs 590113)” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Internet Security Auditorsisecauditors.comHQ: Barcelona, SpainReported employees: 11-50 | Barcelona, Spain | 11-50 | Exact match | 42 contacts → |
“Experts in #Cybersecurity.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  5tattva Cert-In Empanelled & PCI QSA Company5tattva.comHQ: Gurugram, IndiaReported employees: 11-50 | Gurugram, India | 11-50 | Exact match | 40 contacts → |
“Five Tattva a PCI QSA Company & CERT-IN Empanelled company, 5Tattva stands at the forefront of the global IT solutions and Managed Security Services landscape, specializing in…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Digital Boundary Groupdrtcyber.comHQ: London, ON, CanadaReported employees: 11-50 | London, ON, Canada | 11-50 | Exact match | 39 contacts → |
“Digital Boundary Group is an Information Technology Security Assurance Services firm serving clients throughout North America since 2003.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,405 company matches
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Iso 27001 audit services: 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
1,403 records in the displayed employee bands.
2 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 1,405 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 ↗
Iso 27001 audit services by location
12 lists · largest firstEvery Iso 27001 audit services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Iso 27001 audit services based in the United Kingdom127
- Iso 27001 audit services based in India112
- Iso 27001 audit services based in the United States108
- Iso 27001 audit services based in Germany87
- Iso 27001 audit services based in France68
- Iso 27001 audit services based in the Netherlands57
- Iso 27001 audit services based in Australia43
- Iso 27001 audit services based in Türkiye39
- Iso 27001 audit services based in Spain36
- Iso 27001 audit services based in Poland35
- Iso 27001 audit services based in Brazil33
Cities
Questions about this company list
What does Exact match mean for iso 27001 audit services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many iso 27001 audit services did RevenueBase find worldwide?
The saved snapshot records 1,405 matching company records, 8,128 tracked contacts and 2,220 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.
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Cite this list
RevenueBase Data Team. Top 25 iso 27001 audit services worldwide. Snapshot: September 28, 2026. https://revenuebase.ai/companies/browse/iso-27001-audit-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 iso 27001 audit services worldwide
RevenueBase records 1,405 matching company records for iso 27001 audit services worldwide, with 8,128 tracked contacts and 2,220 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 iso 27001 audit services worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | A-Ligna-lign.com HQ: Tampa, FL, United StatesReported employees: 501-1,000 | Tampa, FL, United States | 501-1,000 | Exact match | 798 contacts → |
“A-LIGN is the leading provider of high-quality, efficient cybersecurity compliance programs.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Dataguarddataguard.com HQ: Munich, GermanyReported employees: 201-500 | Munich, Germany | 201-500 | Exact match | 189 contacts → |
“DataGuard, the European leader in security and compliance software, is trusted by more than organizations across 50+ countries.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | operum.techoperum.tech HQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 186 contacts → |
“IT support for businesses in London.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | QRC Assurance And Solutionsqrcsolutionz.com HQ: Navi Mumbai, IndiaReported employees: 51-200 | Navi Mumbai, India | 51-200 | Exact match | 181 contacts → |
“QRC Assurance and Solutions has been a forerunner on the cybersecurity front, empanelled with CERT-in, certified to provide PCI DSS QSA, PA QSA, PCI 3DS, PCI SSF, ISO 27001, ISO…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 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. | |||||
| 6 | B-Secureb-secure.co HQ: Bogotá, ColombiaReported employees: 51-200 | Bogotá, Colombia | 51-200 | Exact match | 111 contacts → |
“B-SECURE provides information security services and technologies that enable organizations to improve their security posture, minimize risk levels and simplify compliance of laws…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Intercert INCintercert.com HQ: The Woodlands, TX, United StatesReported employees: 51-200 | The Woodlands, TX, United States | 51-200 | Exact match | 85 contacts → |
“INTERCERT is a multinational auditing company headquartered in Texas, United States operating at 28+ countries.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Ardur Technology LLCardurtechnology.com HQ: Las Vegas, NV, United StatesReported employees: 201-500 | Las Vegas, NV, United States | 201-500 | Exact match | 77 contacts → |
“Ardur Technology an ISO 27001:2022 Certified organization is registered as a business unit in Las Vegas, USA.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Astral Consulting LTDastralconsultants.com HQ: Coimbatore, IndiaReported employees: 51-200 | Coimbatore, India | 51-200 | Exact match | 76 contacts → |
“About Astral Consulting Limited Astral Consulting Limited is a Director-led consulting and advisory company helping businesses strengthen governance, improve performance, manage…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Hackmetrixhackmetrix.com HQ: Miguel Hidalgo, MexicoReported employees: 51-200 | Miguel Hidalgo, Mexico | 51-200 | Exact match | 69 contacts → |
“We help our customers improve security, achieve certifications like ISO 27001, and comply with industry regulations like PCI.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Shieldbyte Infosec Pvt. LTDshieldbyteinfosec.com HQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 68 contacts → |
“ShieldByte Infosec is now CERT-In Empanelled Auditor and leading cyber security company in India.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Matrix3d Infocom Private LTDmatrix3d.com HQ: Mumbai, IndiaReported employees: 11-50 | Mumbai, India | 11-50 | Exact match | 67 contacts → |
“Matrix3D, a CERT-In Empanelled organization, helps make your business secure and resilient through detailed IT assessments and audits, with clear gap analysis and strong…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Pristine Consultingpriscons.com HQ: Chennai, IndiaReported employees: 11-50 | Chennai, India | 11-50 | Exact match | 64 contacts → |
“Pristine is a professional services firm offering audit, assurance services & consulting solutions in the areas of IT Security, IS Audits, Network Security, Computer Forensics…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Btyon Consultancybtyon.com.tr HQ: İstanbul, TürkiyeReported employees: 11-50 | İstanbul, Türkiye | 11-50 | Exact match | 60 contacts → |
“BTYÖN; bilgi güvenliği, iş sürekliliği ve bilgi teknolojileri yönetişimi alanlarında danışmanlık, eğitim, analiz ve değerlendirme hizmetleri sunmaktadır.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Kratikalkratikal.com HQ: Noida, IndiaReported employees: 51-200 | Noida, India | 51-200 | Exact match | 59 contacts → |
“Kratikal is an end to end cyber security solutions provider.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Core Business Solutionsthecoresolution.com HQ: Lewisburg, PA, United StatesReported employees: 11-50 | Lewisburg, PA, United States | 11-50 | Exact match | 57 contacts → |
“Core Business Solutions specializes in the needs of small businesses seeking ISO 9001 certification.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: 台北市, TaiwanReported employees: 51-200 | 台北市, Taiwan | 51-200 | Exact match | 50 contacts → |
“SGSISO/IEC 27001:2022ISO/IEC 27701:2019APPIoTTAF20SOC(113114)A ISOSOC ‣ ‣ ISSDU Security Advisory – CVE Research and Vulnerability” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Hansen-Holmhansen-holm.com HQ: Guayaquil, EcuadorReported employees: 51-200 | Guayaquil, Ecuador | 51-200 | Exact match | 49 contacts → |
“Auditoría y Consultoría | Ecuador Hansen-Holm está comprometida con la calidad y seguridad de la información que manejamos durante todo el proceso del servicio de auditoría…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Johanson Group LLPjohansonllp.com HQ: Colorado Springs, CO, United StatesReported employees: 51-200 | Colorado Springs, CO, United States | 51-200 | Exact match | 46 contacts → |
“Johanson Group has provided Security & Compliance Audit Services to public and private companies in a variety of industries across the world.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Allendevaux & Companyallendevaux.com HQ: Dayton, OH, United StatesReported employees: 11-50 | Dayton, OH, United States | 11-50 | Exact match | 44 contacts → |
“We're a full-service agency that helps organizations globally with their Cybersecurity, Data Protection, and Compliance requirements.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | digital.securityeviden.com HQ: Bezons, FranceReported employees: 201-500 | Bezons, France | 201-500 | Exact match | 44 contacts → |
“Founded in 2015 by a group of IT security experts with the support of the Econocom Group, digital.security (~ 230 experts) aims to offer companies and government organisations…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HQ: 中央区, JapanReported employees: 201-500 | 中央区, Japan | 201-500 | Exact match | 42 contacts → |
“018-0040-10 018-0040-20 018-0040-30 018-0040-40 jis q 27001:2014 (iso/iec 27001:2013)(is 568941) iso 9001:2015 (fs 590113)” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Internet Security Auditorsisecauditors.com HQ: Barcelona, SpainReported employees: 11-50 | Barcelona, Spain | 11-50 | Exact match | 42 contacts → |
“Experts in #Cybersecurity.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | 5tattva Cert-In Empanelled & PCI QSA Company5tattva.com HQ: Gurugram, IndiaReported employees: 11-50 | Gurugram, India | 11-50 | Exact match | 40 contacts → |
“Five Tattva a PCI QSA Company & CERT-IN Empanelled company, 5Tattva stands at the forefront of the global IT solutions and Managed Security Services landscape, specializing in…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Digital Boundary Groupdrtcyber.com HQ: London, ON, CanadaReported employees: 11-50 | London, ON, Canada | 11-50 | Exact match | 39 contacts → |
“Digital Boundary Group is an Information Technology Security Assurance Services firm serving clients throughout North America since 2003.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,405 company matches
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Iso 27001 audit services: 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
1,403 records in the displayed employee bands.
2 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 1,405 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 ↗
Iso 27001 audit services by location
12 lists · largest firstEvery Iso 27001 audit services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Iso 27001 audit services based in the United Kingdom127
- Iso 27001 audit services based in India112
- Iso 27001 audit services based in the United States108
- Iso 27001 audit services based in Germany87
- Iso 27001 audit services based in France68
- Iso 27001 audit services based in the Netherlands57
- Iso 27001 audit services based in Australia43
- Iso 27001 audit services based in Türkiye39
- Iso 27001 audit services based in Spain36
- Iso 27001 audit services based in Poland35
- Iso 27001 audit services based in Brazil33
Cities
Questions about this company list
What does Exact match mean for iso 27001 audit services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many iso 27001 audit services did RevenueBase find worldwide?
The saved snapshot records 1,405 matching company records, 8,128 tracked contacts and 2,220 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
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Cite this list
RevenueBase Data Team. Top 25 iso 27001 audit services worldwide. Snapshot: September 28, 2026. https://revenuebase.ai/companies/browse/iso-27001-audit-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗