Company lists · Data refreshed September 2026

Top 25 Compliance and IT audit firms worldwide

Name: Compliance and IT audit firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 8,397 companies tracked

RevenueBase identified 8,397 company matches for compliance and IT audit firms worldwide as of September 2026 and tracks 75,360 professional contacts across them, including 21,411 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for compliance and IT audit firms worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 2026. Country and city lists for compliance and IT audit firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 19, 2026 How this list was built

8,397Companies

75,360Contacts tracked

21,411Verified emails

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The 25 largest compliance and IT audit firms worldwide

Ranked by team size

Top 25 of 8,397 company matches for compliance and IT audit firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Aparajitha Corporate Services Private Limited	Exact match	Madurai, IndiaHQ recorded Sep 19, 2026	1,001-5,000	2,064 contacts →
	Exact match “Aparajitha: Revolutionising India's Regulatory Compliance Space With 25 years of experience, Aparajitha covers compliance for over establishments, factories, and 52 lakh contract…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	Sikich	Exact match	Chicago, IL, United StatesHQ recorded Sep 19, 2026	1,001-5,000	1,688 contacts →
	Exact match “Sikich offers the public and private sectors a diverse platform of professional services across consulting, technology, and compliance.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	RSM Ebner Stolz	Exact match	Stuttgart, GermanyHQ recorded Sep 19, 2026	1,001-5,000	1,442 contacts →
	Exact match “Wollen Sie jemanden, der Sie auch beim Sprung in neue Märkte und bei allen anstehenden Herausforderungen begleitet?” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Matrix Business Services India Private Limited	Exact match	Chennai, IndiaHQ recorded Sep 19, 2026	1,001-5,000	1,199 contacts →
	Exact match “Matrix is a passionate team of professionals providing People, Product, and Process assurance services for enterprises across different industry segments for better compliance and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	A-Lign	Exact match	Tampa, FL, United StatesHQ recorded Sep 19, 2026	501-1,000	798 contacts →
	Exact match “A-LIGN is the leading provider of high-quality, efficient cybersecurity compliance programs.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Sharp & Tannan Group	Exact match	Mumbai, IndiaHQ recorded Sep 19, 2026	501-1,000	601 contacts →
	Exact match “Founded in 1934, by two gentlemen to whom integrity was paramount, Mr.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	Schellman	Exact match	Tampa, FL, United StatesHQ recorded Sep 19, 2026	501-1,000	516 contacts →
	Exact match “Schellman is a leading provider of attestation and compliance services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Datatracks	Exact match	SingaporeHQ recorded Sep 19, 2026	201-500	475 contacts →
	Exact match “Compliance isn’t about reporting data - it’s the foundation of trust, transparency, and resilience in business.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Mahajan & Aibara	Exact match	Mumbai, IndiaHQ recorded Sep 19, 2026	201-500	458 contacts →
	Exact match “We offer Internal Audit & Risk Consulting related services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	ACS	Exact match	Pune, IndiaHQ recorded Sep 19, 2026	1,001-5,000	420 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Controlcase	Exact match	Fairfax, VA, United StatesHQ recorded Sep 19, 2026	201-500	411 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	APA Engineering INC	Exact match	Mount Laurel, NJ, United StatesHQ recorded Sep 19, 2026	201-500	364 contacts →
	Exact match “APA Engineering Inc has been a leader in providing Compliance, Engineering, IT, and Sourcing services since With over twenty years in business, we are dedicated to providing the…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Esec Forte Technologies	Exact match	Gurugram, IndiaHQ recorded Sep 19, 2026	201-500	363 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Bm&a	Exact match	Paris, FranceHQ recorded Sep 19, 2026	201-500	345 contacts →
	Exact match “Based in Paris, Lyon, Rennes, Le Havre, Toulouse, Aix en Provence, Casablanca, London and New York, BM & A is an independent and international group positioned on the audit and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Advisense	Exact match	Stockholm, SwedenHQ recorded Sep 19, 2026	201-500	321 contacts →
	Exact match “Advisense is a leading governance, risk and compliance powerhouse, offering best-in-class services and tech solutions to the European industry.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Comply	Exact match	New York City, NY, United StatesHQ recorded Sep 19, 2026	201-500	308 contacts →
	Exact match “At Comply, we pride ourselves on being the champion for compliance professionals.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	MCO Mycomplianceoffice	Exact match	New York, NY, United StatesHQ recorded Sep 19, 2026	201-500	295 contacts →
	Exact match “MCO is a global leader on a mission to revolutionize how financial firms tackle compliance, making it simpler, smarter, and more effective.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Prescient Security	Exact match	Nashville, TN, United StatesHQ recorded Sep 19, 2026	201-500	272 contacts →
	Exact match “Prescient Security is a global cybersecurity and compliance firm delivering risk-based audits, advanced penetration testing, and end-to-end framework support.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	Guidepost Solutions	Exact match	New York, NY, United StatesHQ recorded Sep 19, 2026	201-500	268 contacts →
	Exact match “We stand at the forefront of leadership, insight, and guidance in a world marked by complexity and uncertainty.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Vaisesika	Exact match	Carlsbad, CA, United StatesHQ recorded Sep 19, 2026	201-500	266 contacts →
	Exact match “Vaisesika Consulting is a global tech and consulting firm that helps businesses transform their digital setups and stay compliant in a straightforward way.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	Martinelli Auditores	Exact match	Joinville, United StatesHQ recorded Sep 19, 2026	201-500	263 contacts →
	Exact match “Fundada em 1973, a MARTINELLI consolidou posição como referência em auditoria e consultoria para empresas de todos os portes e segmentos do mercado nacional.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	Baxter Clewis Cybersecurity	Exact match	Cedar Hill, TX, United StatesHQ recorded Sep 19, 2026	201-500	255 contacts →
	Exact match “Baxter Clewis Cybersecurity, we bring to the table a unique set of experiences that allow us to best serve your cybersecurity needs.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Scrut Automation	Exact match	Palo Alto, CA, United StatesHQ recorded Sep 19, 2026	51-200	248 contacts →
	Exact match “Governance, Risk, and Compliance simplified for new-age businesses.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	G.M.Kapadia & CO	Exact match	Mumbai, IndiaHQ recorded Sep 19, 2026	51-200	248 contacts →
	Exact match “G.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	Thoropass	Exact match	New York, NY, United StatesHQ recorded Sep 19, 2026	201-500	243 contacts →
	Exact match “Thoropass is the only end-to-end cybersecurity auditor.” Recorded in the RevenueBase company graph · Sep 19, 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 “compliance and IT audit firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 8,397 compliance and IT audit firms worldwide

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Compliance and IT audit firms worldwide at a glance

As of Sep 19, 2026

28.4%Verified-email coverage

9.0Average contacts per company

1-10Median size (employees)

2.1%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

5,244

11-50

2,493

51-200

496

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 compliance and IT audit firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “compliance and IT audit firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 21,411 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 19, 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.

Compliance and IT audit firms by location

51 lists · largest first

Every Compliance and IT audit firms 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 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 “compliance and IT audit firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many compliance and IT audit firms are there worldwide?

RevenueBase identified 8,397 company matches for compliance and IT audit firms 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?

Aparajitha Corporate Services Private Limited tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most compliance and IT audit firms?

The United States leads with 1,637 companies, followed by India (974) and the United Kingdom (463). Every compliance and IT audit firms list by country and city is linked on this page.

Which city has the most compliance and IT audit firms?

London leads with 174 company records, followed by Sao Paulo (135) and Mumbai (128).

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 21,411 professional contacts with verified work emails tracked across these 8,397 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 19, 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.