Company lists · Data refreshed September 2026

Top 25 IT audit outsourcing companies worldwide

RevenueBase identified 1,009 IT audit outsourcing companies worldwide as of September 2026 and tracks 9,748 professional contacts across them, including 2,355 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers IT audit outsourcing 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 28, 2026. Country and city lists for IT audit outsourcing 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 28, 2026 86% judged on-target in blind review
1,009Companies
9,748Contacts tracked
2,355Verified emails
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The 25 largest IT audit outsourcing companies worldwide

Ranked by team size
Top 25 of 1,009 IT audit outsourcing companies worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to IT audit outsourcing 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
1Indirect evidenceNavi Mumbai, IndiaHQ checked Sep 28, 20261,001-5,0001,983 contacts →

Indirect evidence

“Established in 2002 and incorporated in 2005, XL Dynamics India Pvt.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceFairfax, VA, United StatesHQ checked Sep 28, 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 28, 2026
3Partial evidenceCalicut, IndiaHQ checked Sep 28, 2026201-500294 contacts →

Partial evidence

“Founded in 2007, Buchprufer Consultants has grown into a trusted and reputed outsourcing partner delivering high-quality financial and professional services.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceChantilly, VA, United StatesHQ checked Sep 28, 20261,001-5,000170 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceNew Delhi, IndiaHQ checked Sep 28, 202651-200163 contacts →

Indirect evidence

“Sahni Natarajan And Bahl [SNB](Est.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceNashville, TN, United StatesHQ checked Sep 28, 202651-200139 contacts →

Indirect 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 28, 2026
7Partial evidenceParis, FranceHQ checked Sep 28, 2026201-500117 contacts →

Partial evidence

“Talenz Audit accompagne les acteurs économiques, entreprises et organisations, dans leurs relations économiques, dans l’analyse de la fiabilité de leurs données financières, et…”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceAlexandria, VA, United StatesHQ checked Sep 28, 2026n/a113 contacts →

Partial 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 28, 2026
9Partial evidenceMadison, SD, United StatesHQ checked Sep 28, 202651-200105 contacts →

Partial evidence

“SBS CyberSecurity, LLC (SBS) is a premier cybersecurity consulting and audit firm.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceJersey City, NJ, United StatesHQ checked Sep 28, 202651-20098 contacts →

Indirect evidence

“Accume Partners, now part of Cherry Bekaert, is a trusted risk assurance and advisory leader and innovator in delivering integrated solutions to our clients in highly regulated…”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceGurugram, IndiaHQ checked Sep 28, 202651-20090 contacts →

Indirect evidence

“With the world constantly and rapidly changing, the future will be full of realigned priorities.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceMumbai, IndiaHQ checked Sep 28, 202651-20088 contacts →

Indirect evidence

“Technologies Ltd, headquartered in Mumbai, is a 25 year old company that is listed on National Stock Exchange (NSE) and Bombay Stock Exchange (BSE) and is one of India’s leading…”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceJohannesburg, South AfricaHQ checked Sep 28, 2026201-50085 contacts →

Partial evidence

“Internal Auditing, IT Auditing, Risk Advisory, Technology Consulting, and Forensics.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceWarszawa, PolandHQ checked Sep 28, 202651-20069 contacts →

Partial evidence

“Mac Auditor od 1994 roku świadczy na rzecz klientów biznesowych usługi z obszaru audytu, outsourcingu usług księgowych i kadrowo-płacowych oraz doradztwa.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceMumbai, IndiaHQ checked Sep 28, 202611-5069 contacts →

Indirect evidence

“Established in the year 1987, fully operational and growing exponentially since early 2003.”

Source: RevenueBase Database · checked Sep 28, 2026
16Strong evidenceMumbai, IndiaHQ checked Sep 28, 202611-5067 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
17Strong evidenceChennai, IndiaHQ checked Sep 28, 202611-5064 contacts →

Strong evidence

“Pristine is a professional services firm offering audit, assurance services & consulting solutions in the areas of IT Security, IS Audits, Network Security, Computer Forensics…”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceJohannesburg, South AfricaHQ checked Sep 28, 202611-5063 contacts →

Indirect evidence

“GRIPP Advisory provides boutique advisory and consulting services to its clients.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceMadrid, SpainHQ checked Sep 28, 2026501-1,00061 contacts →

Indirect evidence

“Servicios de Auditoría y Consultoría.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidencePort Shepstone, South AfricaHQ checked Sep 28, 202651-20059 contacts →

Indirect evidence

“Lockhat Incorporated is a firm of registered auditors offering a range of financial services to both corporate business and government.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceRabat, MoroccoHQ checked Sep 28, 202611-5059 contacts →

Partial evidence

“Accounting And Financial Audit, Procurement Audit, Accounting And Tax Supervision, Audit According To Agreed Procedures, Tax Audit Supervision and Advisory, Book Keeping…”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceSao Paulo, BrazilHQ checked Sep 28, 202651-20056 contacts →

Indirect evidence

“As atividades da AuditSafe foram iniciadas em setembro de 2005, por seu sócio-fundador Fernando Nicolau F.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 28, 202651-20054 contacts →

Indirect evidence

“Past de beheersstructuur nog bij mijn organisatie?”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceNorth Providence, RI, United StatesHQ checked Sep 28, 202611-5051 contacts →

Partial evidence

“Founded in 2010, Compass IT Compliance is a nationwide leader in providing IT security, compliance, and risk management services to organizations of all sizes in all industries.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceTbilisi, GeorgiaHQ checked Sep 28, 202651-20049 contacts →

Partial evidence

“Kudos Georgia is an independent audit, accounting, valuation, tax advisory and corporate finance firm based in Tbilisi, Georgia.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 1,009 IT audit outsourcing companies worldwide

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IT audit outsourcing companies worldwide at a glance

As of Sep 28, 2026
24.2%Verified-email coverage
9.7Average contacts per company
1-10Median size (employees)
1.9%Largest-city concentration · Sao Paulo
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
641
11-50
291
51-200
54
201-500
15
501-1,000
1
1,001-5,000
5
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 IT audit outsourcing 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 IT audit outsourcing companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “IT audit outsourcing 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 IT audit outsourcing 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 IT audit outsourcing 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, 2,355 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 28, 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.

IT audit outsourcing companies by location

8 lists · largest first

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

Countries

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 IT audit outsourcing 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 IT audit outsourcing companies are there worldwide?

RevenueBase identified 1,009 IT audit outsourcing 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?

XL Dynamics India Pvt. LTD, headquartered in Navi Mumbai, tops this list with the largest team on record.

Which country has the most IT audit outsourcing companies?

The United States leads with 213 companies, followed by India (86) and Brazil (48). Every IT audit outsourcing companies list by country and city is linked on this page.

Which city has the most IT audit outsourcing companies?

Sao Paulo leads with 19 headquartered companies, followed by London (15) and Toronto (12).

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 2,355 verified decision-maker contacts tracked across these 1,009 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 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 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.