Company lists · Data refreshed September 2026
Top 25 Iso 27001 information security audit companies worldwide
RevenueBase identified 2,979 company matches for iso 27001 information security audit companies worldwide as of September 2026 and tracks 41,799 professional contacts across them, including 13,259 with verified work emails. The United Kingdom is the largest market and London the largest hub.
This list covers company matches for iso 27001 information security audit companies 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 information security audit companies 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 information security audit companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 15,983 contacts → | ||||
Exact match “DNV is the independent expert in risk management and assurance, operating in more than 100 countries.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 2 | 1,424 contacts → | ||||
Exact match “DQS – Leveraging Quality, Driving Success.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 3 | 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 | |||||
| 4 | 705 contacts → | ||||
Exact match “Get a free, powerful security assessment with personalised recommendations, the same analysis that costs from IT Consultancies.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 5 | 437 contacts → | ||||
Exact match “PECB is a global leader in certification, committed to fostering digital trust through education, certification, and certificate programs across various disciplines.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 6 | 400 contacts → | ||||
Exact match “qSEAp is a CERT-IN empanelled, ISO 27001, SOC-2 Type2 and ISO 9001 certified Infosec organization founded in 2011 with a mission to deliver quality products, superior solutions…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 7 | 192 contacts → | ||||
Exact match “DAGMA Bezpieczeństwo IT to firma z 40-letnim doświadczeniem, specjalizująca się w cyberbezpieczeństwie.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 8 | 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 | |||||
| 9 | 189 contacts → | ||||
Exact match “At Smarttech247 we help global companies defend against cyber crime and protect their operations.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 10 | 186 contacts → | ||||
Exact match “IT support for businesses in London.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 11 | 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 | |||||
| 12 | 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 | |||||
| 13 | 174 contacts → | ||||
Exact match “Somos una firma con reconocimiento internacional que ofrece servicios de certificación, capacitación y evaluación de la conformidad en diferentes estándares nacionales e…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 14 | 170 contacts → | ||||
Exact match “Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 15 | 167 contacts → | ||||
Exact match “ValueMentor is a global information security consulting & services company that delivers real results to global business in maximizing cybersecurity.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 16 | 146 contacts → | ||||
Exact match “It is led by a group of information security specialists with extensive experience in large local and international companies, whose professional development has begun in one of…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 17 | 145 contacts → | ||||
Exact match “Secure & IT es una empresa especializada en seguridad de la información que trabaja en cinco líneas: compliance, procesos y gobierno IT, sistemas y seguridad IT, seguridad…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 18 | 139 contacts → | ||||
Exact match “KirkpatrickPrice is a licensed information security CPA firm, a PCI QSA, and a HITRUST CSF Assessor, providing assurance services to over clients worldwide.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 19 | 138 contacts → | ||||
Exact match “Amtivo Group provides expert certification services for ISO standards, as well as training and related services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 20 | 130 contacts → | ||||
Exact match “Die usd AG schützt Unternehmen vor Hackern und Kriminellen.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 21 | 115 contacts → | ||||
Exact match “We believe in keeping ISO certification simple, so that's exactly what we do.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 22 | 115 contacts → | ||||
Exact match “We were born from a dream of being a humane company, with great expertise and boldness in being a reference in our services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 23 | 111 contacts → | ||||
Exact match “TÜV Informationstechnik GmbH (headquartered in Essen, Germany) is a renowned IT security service provider and an independent testing institute and laboratory for IT security and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 24 | 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 | |||||
| 25 | 111 contacts → | ||||
Exact match “Our services : Penetration tests and Security Audits, Gap Analysis and PCI DSS Certification, CERT-XMCO (vulnerability watch, Cyber Survellance/Threat Intelligence, Forensics).” 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 information security audit companies”. 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 2,979 iso 27001 information security audit companies worldwide
See the full list, filter by size, metro and specialty, and access 13,259 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Iso 27001 information security audit companies 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 information security audit companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “iso 27001 information security audit companies” 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 13,259 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 information security audit companies by location
18 lists · largest firstEvery Iso 27001 information security audit companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Iso 27001 information security audit companies based in the United Kingdom278
- Iso 27001 information security audit companies based in India268
- Iso 27001 information security audit companies based in the United States206
- Iso 27001 information security audit companies based in Germany174
- Iso 27001 information security audit companies based in France119
- Iso 27001 information security audit companies based in the Netherlands111
- Iso 27001 information security audit companies based in Brazil93
- Iso 27001 information security audit companies based in Spain76
- Iso 27001 information security audit companies based in Australia64
- Iso 27001 information security audit companies based in Türkiye63
- Iso 27001 information security audit companies based in Poland62
- Iso 27001 information security audit companies based in Italy50
- Iso 27001 information security audit companies based in Mexico49
- Iso 27001 information security audit companies based in Canada40
- Iso 27001 information security audit companies based in Switzerland35
- Iso 27001 information security audit companies based in Colombia31
- Iso 27001 information security audit companies based in Sweden27
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 information security audit companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many iso 27001 information security audit companies are there worldwide?
RevenueBase identified 2,979 company matches for iso 27001 information security audit companies 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?
DNV tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most iso 27001 information security audit companies?
The United Kingdom leads with 278 companies, followed by India (268) and the United States (206). Every iso 27001 information security audit companies list by country and city is linked on this page.
Which city has the most iso 27001 information security audit companies?
London leads with 60 company records, followed by Istanbul (24) and Paris (23).
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 13,259 professional contacts with verified work emails tracked across these 2,979 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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Top 25 iso 27001 information security audit companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 2,979 matching company records for iso 27001 information security audit companies worldwide, with 41,799 tracked contacts and 13,259 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 information security audit companies 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 |  DNVdnv.comHQ: Høvik, NorwayReported employees: 10001+ | Høvik, Norway | 10001+ | Exact match | 15,983 contacts → |
“DNV is the independent expert in risk management and assurance, operating in more than 100 countries.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | DQSdqsglobal.com HQ: Frankfurt Am Main, GermanyReported employees: 1,001-5,000 | Frankfurt Am Main, Germany | 1,001-5,000 | Exact match | 1,424 contacts → |
“DQS – Leveraging Quality, Driving Success.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  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. | |||||
| 4 |  COBRAaudit.amazingsupport.co.ukHQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 705 contacts → |
“Get a free, powerful security assessment with personalised recommendations, the same analysis that costs from IT Consultancies.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  PECBpecb.comHQ: Montreal, QC, CanadaReported employees: 51-200 | Montreal, QC, Canada | 51-200 | Exact match | 437 contacts → |
“PECB is a global leader in certification, committed to fostering digital trust through education, certification, and certificate programs across various disciplines.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Qseap Infotech PVT LTDqseap.comHQ: Navi Mumbai, IndiaReported employees: 201-500 | Navi Mumbai, India | 201-500 | Exact match | 400 contacts → |
“qSEAp is a CERT-IN empanelled, ISO 27001, SOC-2 Type2 and ISO 9001 certified Infosec organization founded in 2011 with a mission to deliver quality products, superior solutions…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  DAGMAdagma.euHQ: Katowice, PolandReported employees: 201-500 | Katowice, Poland | 201-500 | Exact match | 192 contacts → |
“DAGMA Bezpieczeństwo IT to firma z 40-letnim doświadczeniem, specjalizująca się w cyberbezpieczeństwie.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  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. | |||||
| 9 |  Smarttech247smarttech247.comHQ: Cork - London - New York City - Bucharest - Krakow - Belfast, IrelandReported employees: 51-200 | Cork - London - New York City - Bucharest - Krakow - Belfast, Ireland | 51-200 | Exact match | 189 contacts → |
“At Smarttech247 we help global companies defend against cyber crime and protect their operations.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  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. | |||||
| 11 |  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. | |||||
| 12 |  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. | |||||
| 13 | Global Standardsglobalstd.com HQ: Guadalajara, MexicoReported employees: 51-200 | Guadalajara, Mexico | 51-200 | Exact match | 174 contacts → |
“Somos una firma con reconocimiento internacional que ofrece servicios de certificación, capacitación y evaluación de la conformidad en diferentes estándares nacionales e…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Ampcus Cyberampcuscyber.comHQ: Chantilly, VA, United StatesReported employees: 1,001-5,000 | Chantilly, VA, United States | 1,001-5,000 | Exact match | 170 contacts → |
“Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Valuementorvaluementor.comHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 167 contacts → |
“ValueMentor is a global information security consulting & services company that delivers real results to global business in maximizing cybersecurity.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Penta Security Solutionspsscorp.techHQ: Comuna 15, ArgentinaReported employees: 51-200 | Comuna 15, Argentina | 51-200 | Exact match | 146 contacts → |
“It is led by a group of information security specialists with extensive experience in large local and international companies, whose professional development has begun in one of…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Secure&itsecureit.esHQ: Las Rozas De Madrid, SpainReported employees: 51-200 | Las Rozas De Madrid, Spain | 51-200 | Exact match | 145 contacts → |
“Secure & IT es una empresa especializada en seguridad de la información que trabaja en cinco líneas: compliance, procesos y gobierno IT, sistemas y seguridad IT, seguridad…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Kirkpatrickpricekirkpatrickprice.comHQ: Nashville, TN, United StatesReported employees: 51-200 | Nashville, TN, United States | 51-200 | Exact match | 139 contacts → |
“KirkpatrickPrice is a licensed information security CPA firm, a PCI QSA, and a HITRUST CSF Assessor, providing assurance services to over clients worldwide.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Amtivo Groupamtivo.comHQ: West Malling, United KingdomReported employees: 201-500 | West Malling, United Kingdom | 201-500 | Exact match | 138 contacts → |
“Amtivo Group provides expert certification services for ISO standards, as well as training and related services.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  USD AGusd.deHQ: Neu-isenburg, GermanyReported employees: 51-200 | Neu-isenburg, Germany | 51-200 | Exact match | 130 contacts → |
“Die usd AG schützt Unternehmen vor Hackern und Kriminellen.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Citation ISO Certificationqmsuk.com HQ: Norwich, United KingdomReported employees: 51-200 | Norwich, United Kingdom | 51-200 | Exact match | 115 contacts → |
“We believe in keeping ISO certification simple, so that's exactly what we do.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Grupo Nacional Controladorianacionalcontroladoria.com.brHQ: Patos De Minas, BrazilReported employees: 51-200 | Patos De Minas, Brazil | 51-200 | Exact match | 115 contacts → |
“We were born from a dream of being a humane company, with great expertise and boldness in being a reference in our services.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  TÜV Informationstechnik Gmbhtuvit.deHQ: Essen, GermanyReported employees: 51-200 | Essen, Germany | 51-200 | Exact match | 111 contacts → |
“TÜV Informationstechnik GmbH (headquartered in Essen, Germany) is a renowned IT security service provider and an independent testing institute and laboratory for IT security and…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  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. | |||||
| 25 |  XMCOxmco.frHQ: Paris, FranceReported employees: 51-200 | Paris, France | 51-200 | Exact match | 111 contacts → |
“Our services : Penetration tests and Security Audits, Gap Analysis and PCI DSS Certification, CERT-XMCO (vulnerability watch, Cyber Survellance/Threat Intelligence, Forensics).” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,979 company matches
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Iso 27001 information security audit companies: 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
2,967 records in the displayed employee bands.
12 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 2,979 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 information security audit companies by location
18 lists · largest firstEvery Iso 27001 information security audit companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Iso 27001 information security audit companies based in the United Kingdom278
- Iso 27001 information security audit companies based in India268
- Iso 27001 information security audit companies based in the United States206
- Iso 27001 information security audit companies based in Germany174
- Iso 27001 information security audit companies based in France119
- Iso 27001 information security audit companies based in the Netherlands111
- Iso 27001 information security audit companies based in Brazil93
- Iso 27001 information security audit companies based in Spain76
- Iso 27001 information security audit companies based in Australia64
- Iso 27001 information security audit companies based in Türkiye63
- Iso 27001 information security audit companies based in Poland62
- Iso 27001 information security audit companies based in Italy50
- Iso 27001 information security audit companies based in Mexico49
- Iso 27001 information security audit companies based in Canada40
- Iso 27001 information security audit companies based in Switzerland35
- Iso 27001 information security audit companies based in Colombia31
- Iso 27001 information security audit companies based in Sweden27
Cities
Questions about this company list
What does Exact match mean for iso 27001 information security audit companies?
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 information security audit companies did RevenueBase find worldwide?
The saved snapshot records 2,979 matching company records, 41,799 tracked contacts and 13,259 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 information security audit companies worldwide. Snapshot: September 28, 2026. https://revenuebase.ai/companies/browse/iso-27001-information-security-audit-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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Top 25 iso 27001 information security audit companies worldwide
RevenueBase records 2,979 matching company records for iso 27001 information security audit companies worldwide, with 41,799 tracked contacts and 13,259 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 information security audit companies 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 | DNVdnv.com HQ: Høvik, NorwayReported employees: 10001+ | Høvik, Norway | 10001+ | Exact match | 15,983 contacts → |
“DNV is the independent expert in risk management and assurance, operating in more than 100 countries.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | DQSdqsglobal.com HQ: Frankfurt Am Main, GermanyReported employees: 1,001-5,000 | Frankfurt Am Main, Germany | 1,001-5,000 | Exact match | 1,424 contacts → |
“DQS – Leveraging Quality, Driving Success.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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. | |||||
| 4 | COBRAaudit.amazingsupport.co.uk HQ: London, United KingdomReported employees: Not recorded | London, United Kingdom | Not recorded | Exact match | 705 contacts → |
“Get a free, powerful security assessment with personalised recommendations, the same analysis that costs from IT Consultancies.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | PECBpecb.com HQ: Montreal, QC, CanadaReported employees: 51-200 | Montreal, QC, Canada | 51-200 | Exact match | 437 contacts → |
“PECB is a global leader in certification, committed to fostering digital trust through education, certification, and certificate programs across various disciplines.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Qseap Infotech PVT LTDqseap.com HQ: Navi Mumbai, IndiaReported employees: 201-500 | Navi Mumbai, India | 201-500 | Exact match | 400 contacts → |
“qSEAp is a CERT-IN empanelled, ISO 27001, SOC-2 Type2 and ISO 9001 certified Infosec organization founded in 2011 with a mission to deliver quality products, superior solutions…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | DAGMAdagma.eu HQ: Katowice, PolandReported employees: 201-500 | Katowice, Poland | 201-500 | Exact match | 192 contacts → |
“DAGMA Bezpieczeństwo IT to firma z 40-letnim doświadczeniem, specjalizująca się w cyberbezpieczeństwie.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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. | |||||
| 9 | Smarttech247smarttech247.com HQ: Cork - London - New York City - Bucharest - Krakow - Belfast, IrelandReported employees: 51-200 | Cork - London - New York City - Bucharest - Krakow - Belfast, Ireland | 51-200 | Exact match | 189 contacts → |
“At Smarttech247 we help global companies defend against cyber crime and protect their operations.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | 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. | |||||
| 11 | 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. | |||||
| 12 | 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. | |||||
| 13 | Global Standardsglobalstd.com HQ: Guadalajara, MexicoReported employees: 51-200 | Guadalajara, Mexico | 51-200 | Exact match | 174 contacts → |
“Somos una firma con reconocimiento internacional que ofrece servicios de certificación, capacitación y evaluación de la conformidad en diferentes estándares nacionales e…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Ampcus Cyberampcuscyber.com HQ: Chantilly, VA, United StatesReported employees: 1,001-5,000 | Chantilly, VA, United States | 1,001-5,000 | Exact match | 170 contacts → |
“Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Valuementorvaluementor.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 167 contacts → |
“ValueMentor is a global information security consulting & services company that delivers real results to global business in maximizing cybersecurity.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Penta Security Solutionspsscorp.tech HQ: Comuna 15, ArgentinaReported employees: 51-200 | Comuna 15, Argentina | 51-200 | Exact match | 146 contacts → |
“It is led by a group of information security specialists with extensive experience in large local and international companies, whose professional development has begun in one of…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Secure&itsecureit.es HQ: Las Rozas De Madrid, SpainReported employees: 51-200 | Las Rozas De Madrid, Spain | 51-200 | Exact match | 145 contacts → |
“Secure & IT es una empresa especializada en seguridad de la información que trabaja en cinco líneas: compliance, procesos y gobierno IT, sistemas y seguridad IT, seguridad…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Kirkpatrickpricekirkpatrickprice.com HQ: Nashville, TN, United StatesReported employees: 51-200 | Nashville, TN, United States | 51-200 | Exact match | 139 contacts → |
“KirkpatrickPrice is a licensed information security CPA firm, a PCI QSA, and a HITRUST CSF Assessor, providing assurance services to over clients worldwide.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Amtivo Groupamtivo.com HQ: West Malling, United KingdomReported employees: 201-500 | West Malling, United Kingdom | 201-500 | Exact match | 138 contacts → |
“Amtivo Group provides expert certification services for ISO standards, as well as training and related services.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | USD AGusd.de HQ: Neu-isenburg, GermanyReported employees: 51-200 | Neu-isenburg, Germany | 51-200 | Exact match | 130 contacts → |
“Die usd AG schützt Unternehmen vor Hackern und Kriminellen.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Citation ISO Certificationqmsuk.com HQ: Norwich, United KingdomReported employees: 51-200 | Norwich, United Kingdom | 51-200 | Exact match | 115 contacts → |
“We believe in keeping ISO certification simple, so that's exactly what we do.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Grupo Nacional Controladorianacionalcontroladoria.com.br HQ: Patos De Minas, BrazilReported employees: 51-200 | Patos De Minas, Brazil | 51-200 | Exact match | 115 contacts → |
“We were born from a dream of being a humane company, with great expertise and boldness in being a reference in our services.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | TÜV Informationstechnik Gmbhtuvit.de HQ: Essen, GermanyReported employees: 51-200 | Essen, Germany | 51-200 | Exact match | 111 contacts → |
“TÜV Informationstechnik GmbH (headquartered in Essen, Germany) is a renowned IT security service provider and an independent testing institute and laboratory for IT security and…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | 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. | |||||
| 25 | XMCOxmco.fr HQ: Paris, FranceReported employees: 51-200 | Paris, France | 51-200 | Exact match | 111 contacts → |
“Our services : Penetration tests and Security Audits, Gap Analysis and PCI DSS Certification, CERT-XMCO (vulnerability watch, Cyber Survellance/Threat Intelligence, Forensics).” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Iso 27001 information security audit companies: 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
2,967 records in the displayed employee bands.
12 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 2,979 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 information security audit companies by location
18 lists · largest firstEvery Iso 27001 information security audit companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Iso 27001 information security audit companies based in the United Kingdom278
- Iso 27001 information security audit companies based in India268
- Iso 27001 information security audit companies based in the United States206
- Iso 27001 information security audit companies based in Germany174
- Iso 27001 information security audit companies based in France119
- Iso 27001 information security audit companies based in the Netherlands111
- Iso 27001 information security audit companies based in Brazil93
- Iso 27001 information security audit companies based in Spain76
- Iso 27001 information security audit companies based in Australia64
- Iso 27001 information security audit companies based in Türkiye63
- Iso 27001 information security audit companies based in Poland62
- Iso 27001 information security audit companies based in Italy50
- Iso 27001 information security audit companies based in Mexico49
- Iso 27001 information security audit companies based in Canada40
- Iso 27001 information security audit companies based in Switzerland35
- Iso 27001 information security audit companies based in Colombia31
- Iso 27001 information security audit companies based in Sweden27
Cities
Questions about this company list
What does Exact match mean for iso 27001 information security audit companies?
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 information security audit companies did RevenueBase find worldwide?
The saved snapshot records 2,979 matching company records, 41,799 tracked contacts and 13,259 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 information security audit companies worldwide. Snapshot: September 28, 2026. https://revenuebase.ai/companies/browse/iso-27001-information-security-audit-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗