Company lists · Data refreshed September 2026

Top 25 Compliance audit firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 2,852 companies tracked

RevenueBase identified 2,852 compliance audit firms worldwide as of September 2026 and tracks 23,905 professional contacts across them, including 5,590 with verified work emails. The United States is the largest market and London the largest hub.

This list covers compliance audit firms 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 19, 2026. Country and city lists for compliance audit firms 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 19, 2026 86% judged on-target in blind review

2,852Companies

23,905Contacts tracked

5,590Verified emails

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The 25 largest compliance audit firms worldwide

Ranked by team size

Top 25 of 2,852 compliance audit firms worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to compliance audit firms: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Aparajitha Corporate Services Private Limited	Partial evidence	Madurai, IndiaHQ checked Sep 19, 2026	1,001-5,000	2,064 contacts →
	Partial evidence “Aparajitha: Revolutionising India's Regulatory Compliance Space With 25 years of experience, Aparajitha covers compliance for over establishments, factories, and 52 lakh contract…” Source: RevenueBase Database · checked Sep 19, 2026
2	Matrix Business Services India Private Limited	Partial evidence	Chennai, IndiaHQ checked Sep 19, 2026	1,001-5,000	1,199 contacts →
	Partial evidence “Matrix is a passionate team of professionals providing People, Product, and Process assurance services for enterprises across different industry segments for better compliance and…” Source: RevenueBase Database · checked Sep 19, 2026
3	A-Lign	Partial evidence	Tampa, FL, United StatesHQ checked Sep 19, 2026	501-1,000	798 contacts →
	Partial evidence “A-LIGN is the leading provider of high-quality, efficient cybersecurity compliance programs.” Source: RevenueBase Database · checked Sep 19, 2026
4	Datatracks	Partial evidence	SingaporeHQ checked Sep 19, 2026	201-500	475 contacts →
	Partial evidence “Compliance isn’t about reporting data - it’s the foundation of trust, transparency, and resilience in business.” Source: RevenueBase Database · checked Sep 19, 2026
5	ACS	Indirect evidence	Pune, IndiaHQ checked Sep 19, 2026	1,001-5,000	420 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
6	Controlcase	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 19, 2026	201-500	411 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 19, 2026
7	PKF Durban	Indirect evidence	Umhlanga, South AfricaHQ checked Sep 19, 2026	201-500	184 contacts →
	Indirect evidence “Auditing, Accounting and Taxation It’s been 100 years since David Strachan strode from the pavement of Smith Street into William Cotta Building at number 331, and put up his…” Source: RevenueBase Database · checked Sep 19, 2026
8	Shah Kapadia & Associates	Strong evidence	Mumbai, IndiaHQ checked Sep 19, 2026	201-500	183 contacts →
	Strong evidence “Shah Kapadia & Associates is a pioneer in the field of the securities market for SEBI compliance assistance, audit & assurance, process review and risk management.” Source: RevenueBase Database · checked Sep 19, 2026
9	ICARE	Indirect evidence	Saint Beauzire, FranceHQ checked Sep 19, 2026	51-200	176 contacts →
	Indirect evidence “Groupe ICARE : Votre partenaire expert de la sécurité des produits de santé Avec 30 ans d’expérience, le Groupe ICARE se distingue comme un leader en matière de normalisation et…” Source: RevenueBase Database · checked Sep 19, 2026
10	Insight Assurance	Partial evidence	Tampa, FL, United StatesHQ checked Sep 19, 2026	201-500	174 contacts →
	Partial 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 19, 2026
11	Ampcus Cyber	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 19, 2026	1,001-5,000	170 contacts →
	Indirect evidence “Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!” Source: RevenueBase Database · checked Sep 19, 2026
12	Kaizen	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	51-200	168 contacts →
	Indirect evidence “Kaizen delivers independent regulatory reporting assurance through a scalable platform that combines forensic testing, deep regulatory expertise, and actionable insights.” Source: RevenueBase Database · checked Sep 19, 2026
13	Harbor Compliance	Partial evidence	Lancaster, PA, United StatesHQ checked Sep 19, 2026	201-500	150 contacts →
	Partial evidence “We provide innovative compliance solutions by embracing complexity and making it simple.” Source: RevenueBase Database · checked Sep 19, 2026
14	Trendsource, INC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 19, 2026	11-50	141 contacts →
	Partial evidence “TrendSource helps businesses document and measure compliance across employment, consumer reporting, government, finance, health care, and retail.” Source: RevenueBase Database · checked Sep 19, 2026
15	Kirkpatrickprice	Indirect evidence	Nashville, TN, United StatesHQ checked Sep 19, 2026	51-200	139 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 19, 2026
16	Talenz Audit	Partial evidence	Paris, FranceHQ checked Sep 19, 2026	201-500	117 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 19, 2026
17	HECT	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 19, 2026	51-200	117 contacts →
	Indirect evidence “Founded in 2005, Hect is a Brazilian company with both national and international operations.” Source: RevenueBase Database · checked Sep 19, 2026
18	Worisgo	Partial evidence	New Delhi, IndiaHQ checked Sep 19, 2026	11-50	106 contacts →
	Partial evidence “WoRisGo is an all-inclusive global service provider, delivering quintessential risk management solutions, governance and compliance assurance to help businesses face uncertainties…” Source: RevenueBase Database · checked Sep 19, 2026
19	AAA Technologies LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 19, 2026	51-200	88 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 19, 2026
20	Analisi SPA	Indirect evidence	Reggio Nell'emilia, ItalyHQ checked Sep 19, 2026	51-200	74 contacts →
	Indirect evidence “Analisi S.p.A.” Source: RevenueBase Database · checked Sep 19, 2026
21	Eden Data	Partial evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	51-200	70 contacts →
	Partial evidence “When we started Eden Data in 2021, our goal was to change the way high-growth organizations think about compliance and cybersecurity.” Source: RevenueBase Database · checked Sep 19, 2026
22	Aneel Lasod And Associates	Indirect evidence	Mumbai, IndiaHQ checked Sep 19, 2026	11-50	69 contacts →
	Indirect evidence “Established in the year 1987, fully operational and growing exponentially since early 2003.” Source: RevenueBase Database · checked Sep 19, 2026
23	Martindale Consultants, INC	Strong evidence	Oklahoma City, OK, United StatesHQ checked Sep 19, 2026	51-200	66 contacts →
	Strong evidence “Martindale Consultants was founded in 1982 to deliver specialized audit, accounting, and regulatory compliance services to the oil and gas industry.” Source: RevenueBase Database · checked Sep 19, 2026
24	Aleph India Group	Partial evidence	Noida, IndiaHQ checked Sep 19, 2026	51-200	66 contacts →
	Partial evidence “Aleph INDIA a BIS : ISO 9001 certified consulting organization specializing in regulatory compliance, product certifications and testing under various Domestic & international…” Source: RevenueBase Database · checked Sep 19, 2026
25	Quest CE	Strong evidence	Milwaukee, WI, United StatesHQ checked Sep 19, 2026	51-200	61 contacts →
	Strong evidence “Quest CE helps financial service organizations manage their compliance operations by offering firm training programs, disclosure tracking services and branch audit solutions.” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: compliance audit firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names compliance audit firms.
Partial evidence: Its own public description names part of compliance audit firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name compliance audit firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 2,852 compliance audit firms worldwide

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Compliance audit firms worldwide at a glance

As of Sep 19, 2026

23.4%Verified-email coverage

8.4Average contacts per company

1-10Median size (employees)

1.8%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

1,892

11-50

793

51-200

121

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among compliance audit firms, 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 compliance audit firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “compliance audit firms”. 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 compliance audit firms), 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 compliance audit firms, 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, 5,590 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 19, 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.

Compliance audit firms by location

13 lists · largest first

Every Compliance audit firms 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 compliance audit firms, 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 compliance audit firms are there worldwide?

RevenueBase identified 2,852 compliance audit firms 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?

Aparajitha Corporate Services Private Limited, headquartered in Madurai, tops this list with the largest team on record.

Which country has the most compliance audit firms?

The United States leads with 587 companies, followed by India (283) and Brazil (155). Every compliance audit firms list by country and city is linked on this page.

Which city has the most compliance audit firms?

London leads with 51 headquartered companies, followed by Sao Paulo (46) and New York (31).

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 5,590 verified decision-maker contacts tracked across these 2,852 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 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 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.