Company lists · Data refreshed September 2026

Top 25 Security compliance audit companies worldwide

RevenueBase identified 1,949 security compliance audit companies worldwide as of September 2026 and tracks 20,145 professional contacts across them, including 6,290 with verified work emails. The United States is the largest market and London the largest hub.

This list covers security compliance audit companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026. Country and city lists for security compliance audit companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
1,949Companies
20,145Contacts tracked
6,290Verified emails
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The 25 largest security compliance audit companies worldwide

Ranked by team size
Top 25 of 1,949 security compliance audit companies worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to security compliance audit companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceTampa, FL, United StatesHQ checked Sep 29, 2026501-1,000798 contacts →

Partial evidence

“A-LIGN is the leading provider of high-quality, efficient cybersecurity compliance programs.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceLondon, United KingdomHQ checked Sep 29, 2026n/a705 contacts →

Partial evidence

“Get a free, powerful security assessment with personalised recommendations, the same analysis that costs from IT Consultancies.”

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidencePlano, TX, United StatesHQ checked Sep 29, 2026501-1,000641 contacts →

Partial evidence

“At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceChicago, IL, United StatesHQ checked Sep 29, 20261,001-5,000628 contacts →

Partial evidence

“VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceFairfax, VA, United StatesHQ checked Sep 29, 2026201-500411 contacts →

Partial evidence

“ControlCase is committed to bringing peace of mind to the world’s IT compliance programs through our signature partnership approach, commitment to automation, and cost-effective…”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceGurugram, IndiaHQ checked Sep 29, 2026201-500363 contacts →

Partial evidence

“eSec Forte® Technologies is a CMMi Level 3 certified Global Consulting and IT Security Services company with offerings across Cloud Security, Cyber Forensics, Malware Detection…”

Source: RevenueBase Database · checked Sep 29, 2026
7Strong evidenceNashville, TN, United StatesHQ checked Sep 29, 2026201-500272 contacts →

Strong evidence

“Prescient Security is a global cybersecurity and compliance firm delivering risk-based audits, advanced penetration testing, and end-to-end framework support.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceOrem, UT, United StatesHQ checked Sep 29, 2026501-1,000268 contacts →

Indirect evidence

“We secure peace of mind for organizations that handle sensitive data by holding our tools, training, and support to a higher standard.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceCedar Hill, TX, United StatesHQ checked Sep 29, 2026201-500255 contacts →

Indirect evidence

“Baxter Clewis Cybersecurity, we bring to the table a unique set of experiences that allow us to best serve your cybersecurity needs.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 2026201-500243 contacts →

Indirect evidence

“Thoropass is the only end-to-end cybersecurity auditor.”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceBengaluru, IndiaHQ checked Sep 29, 202651-200221 contacts →

Indirect evidence

“CYRAAC Services Private Limited (CyRAACS) is a leading, technology-first cybersecurity consulting and advisory firm headquartered in India, empanelled with CERT-In and accredited…”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceReston, VA, United StatesHQ checked Sep 29, 20261,001-5,000204 contacts →

Indirect evidence

“MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.”

Source: RevenueBase Database · checked Sep 29, 2026
13Strong evidenceTampa, FL, United StatesHQ checked Sep 29, 2026201-500174 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
14Strong evidenceTallinn City, EstoniaHQ checked Sep 29, 202651-200172 contacts →

Strong evidence

“Hacken is an end-to-end blockchain security and compliance partner for digital assets.”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceChantilly, VA, United StatesHQ checked Sep 29, 20261,001-5,000170 contacts →

Indirect evidence

“Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceAustin, TX, United StatesHQ checked Sep 29, 20261,001-5,000167 contacts →

Indirect evidence

“11:11 Systems is a managed infrastructure solutions provider that empowers customers to modernize, protect, and manage mission-critical applications and data, leveraging 11:11’s…”

Source: RevenueBase Database · checked Sep 29, 2026
17Partial evidenceLas Rozas De Madrid, SpainHQ checked Sep 29, 202651-200145 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidenceNashville, TN, United StatesHQ checked Sep 29, 202651-200139 contacts →

Partial evidence

“KirkpatrickPrice is a licensed information security CPA firm, a PCI QSA, and a HITRUST CSF Assessor, providing assurance services to over clients worldwide.”

Source: RevenueBase Database · checked Sep 29, 2026
19Strong evidenceSt Petersburg, FL, RussiaHQ checked Sep 29, 202651-200130 contacts →

Strong evidence

“360 Advanced is a relationship-focused cybersecurity and compliance firm offering security, privacy and compliance-oriented solutions customized to meet your organization and your…”

Source: RevenueBase Database · checked Sep 29, 2026
20Partial evidenceMission Viejo, CA, United StatesHQ checked Sep 29, 2026201-500125 contacts →

Partial evidence

“Varutra Consulting, an InfoShare company, is a globally recognized cybersecurity firm delivering cutting-edge solutions in Cloud Security, Mobile Security, Application Security…”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-200123 contacts →

Indirect evidence

“Bulletproof is now part of WorkNest Secure.”

Source: RevenueBase Database · checked Sep 29, 2026
22Strong evidenceAlexandria, VA, United StatesHQ checked Sep 29, 2026n/a113 contacts →

Strong evidence

“Strategic Security is an IT Security consulting firm that provides in-depth technical security assessments of your network, web application, and regulatory compliance gap analysis…”

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidenceNoida, IndiaHQ checked Sep 29, 202611-50112 contacts →

Partial evidence

“Securium Solutions Private Limited is a CERT-In Empanelled cybersecurity company helping organizations secure their digital infrastructure against evolving cyber threats.”

Source: RevenueBase Database · checked Sep 29, 2026
24Strong evidenceParis, FranceHQ checked Sep 29, 202651-200111 contacts →

Strong evidence

“Our services : Penetration tests and Security Audits, Gap Analysis and PCI DSS Certification, CERT-XMCO (vulnerability watch, Cyber Survellance/Threat Intelligence, Forensics).”

Source: RevenueBase Database · checked Sep 29, 2026
25Partial evidenceSan Francisco, CO, United StatesHQ checked Sep 29, 202651-200109 contacts →

Partial evidence

“Workstreet is an AI-powered security firm.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 1,949 security compliance audit companies worldwide

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Security compliance audit companies worldwide at a glance

As of Sep 29, 2026
31.2%Verified-email coverage
10.3Average contacts per company
1-10Median size (employees)
1.6%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
1,219
11-50
576
51-200
113
201-500
27
501-1,000
5
1,001-5,000
7
5,001-10,000
1

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among security compliance audit companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for security compliance audit companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “security compliance audit companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names security compliance audit companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among security compliance audit companies, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 6,290 across the full list. 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 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Security compliance audit companies by location

11 lists · largest first

Every Security compliance audit companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names security compliance audit companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many security compliance audit companies are there worldwide?

RevenueBase identified 1,949 security compliance audit companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

A-Lign, headquartered in Tampa, tops this list with the largest team on record.

Which country has the most security compliance audit companies?

The United States leads with 546 companies, followed by India (190) and the United Kingdom (88). Every security compliance audit companies list by country and city is linked on this page.

Which city has the most security compliance audit companies?

London leads with 31 headquartered companies, followed by Paris (23) and Pune (22).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 6,290 verified decision-maker contacts tracked across these 1,949 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 Smart Search, 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.