Company lists · Data refreshed September 2026

Top 25 Regulatory compliance accounting firms worldwide

Name: Regulatory compliance accounting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 15,501 companies tracked

RevenueBase identified 15,501 regulatory compliance accounting firms worldwide as of September 2026 and tracks 152,292 professional contacts across them, including 32,483 with verified work emails. India is the largest market and Sao Paulo the largest hub.

This list covers regulatory compliance accounting 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 29, 2026. Country and city lists for regulatory compliance accounting 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 29, 2026 86% judged on-target in blind review

15,501Companies

152,292Contacts tracked

32,483Verified emails

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The 25 largest regulatory compliance accounting firms worldwide

Ranked by team size

Top 25 of 15,501 regulatory compliance accounting firms worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to regulatory compliance accounting 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	Management Solutions	Indirect evidence	Madrid, SpainHQ checked Sep 29, 2026	1,001-5,000	4,468 contacts →
	Indirect evidence “Management Solutions is a leading provider of business consulting services for regulated industries.” Source: RevenueBase Database · checked Sep 29, 2026
2	Grant Thornton Ireland	Indirect evidence	Dublin, IrelandHQ checked Sep 29, 2026	1,001-5,000	2,374 contacts →
	Indirect evidence “In Ireland, Grant Thornton Ireland and Grant Thornton Corporate Finance Limited (and their respective subsidiary/affiliate entities) operate under an alternative practice…” Source: RevenueBase Database · checked Sep 29, 2026
3	Aparajitha Corporate Services Private Limited	Strong evidence	Madurai, IndiaHQ checked Sep 29, 2026	1,001-5,000	2,064 contacts →
	Strong 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 29, 2026
4	Donnelley Financial Solutions Dfin	Strong evidence	Lancaster, PA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,740 contacts →
	Strong evidence “DFIN is the leading global provider of compliance and regulatory software and services, fueling end-to-end investment company regulatory compliance needs, complex capital markets…” Source: RevenueBase Database · checked Sep 29, 2026
5	ACA Group	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,486 contacts →
	Partial evidence “ACA Group is the leading governance, risk, and compliance advisor to the financial services industry.” Source: RevenueBase Database · checked Sep 29, 2026
6	Ideagen	Indirect evidence	Ruddington, United KingdomHQ checked Sep 29, 2026	1,001-5,000	1,303 contacts →
	Indirect evidence “Ideagen brings clarity and confidence to the safe hands and trusted voices protecting our world.” Source: RevenueBase Database · checked Sep 29, 2026
7	Manubhai & Shah LLP	Indirect evidence	Ahmedabad, IndiaHQ checked Sep 29, 2026	1,001-5,000	1,113 contacts →
	Indirect evidence “Manubhai & Shah LLP is a firm of Chartered Accountants based in Ahmedabad, Gujarat.” Source: RevenueBase Database · checked Sep 29, 2026
8	Kearney & Company	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 29, 2026	1,001-5,000	999 contacts →
	Partial evidence “Established in 1985, Kearney & Company is the largest Certified Public Accounting (CPA) firm in the country exclusively focused on the government.” Source: RevenueBase Database · checked Sep 29, 2026
9	Nangia & CO LLP	Indirect evidence	Delhi-ncr, IndiaHQ checked Sep 29, 2026	1,001-5,000	952 contacts →
	Indirect evidence “Nangia & Co LLP stands as a preeminent one of the top leading CA firm in India with a remarkable four-decade legacy of enriching the business landscape for an extensive clientele…” Source: RevenueBase Database · checked Sep 29, 2026
10	T R Chadha & CO LLP	Indirect evidence	Gurugram, IndiaHQ checked Sep 29, 2026	1,001-5,000	851 contacts →
	Indirect evidence “Established in May 1946 by Late Mr.” Source: RevenueBase Database · checked Sep 29, 2026
11	CT Corporation	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	788 contacts →
	Partial evidence “CT Corporation helps small businesses, corporations, and law firms around the world manage their most critical business and legal compliance responsibilities.” Source: RevenueBase Database · checked Sep 29, 2026
12	Guru & Jana	Indirect evidence	Bangalore, IndiaHQ checked Sep 29, 2026	201-500	621 contacts →
	Indirect evidence “Guru & Jana (GJ) a CA firm in Bangalore based on the philosophy - “Earn, we will & should, but with dignity, joy & trust”, specializes in India Entry, Audit & Assurance…” Source: RevenueBase Database · checked Sep 29, 2026
13	Sharp & Tannan Group	Indirect evidence	Mumbai, IndiaHQ checked Sep 29, 2026	501-1,000	601 contacts →
	Indirect evidence “Founded in 1934, by two gentlemen to whom integrity was paramount, Mr.” Source: RevenueBase Database · checked Sep 29, 2026
14	Solomonedwards	Indirect evidence	Wayne, PA, United StatesHQ checked Sep 29, 2026	1,001-5,000	557 contacts →
	Indirect evidence “For more than 25 years, SolomonEdwards has empowered organizations to tackle common and complex business challenges through strategic advisory, technical advocacy, and hands-on…” Source: RevenueBase Database · checked Sep 29, 2026
15	Alcumus	Indirect evidence	Cardiff, United KingdomHQ checked Sep 29, 2026	1,001-5,000	453 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
16	Aithent INC	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 2026	201-500	416 contacts →
	Strong evidence “Aithent creates high-value regulatory compliance management solutions for financial services, government, healthcare and insurance organizations around the globe.” Source: RevenueBase Database · checked Sep 29, 2026
17	IBM Promontory	Partial evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	501-1,000	403 contacts →
	Partial evidence “IBM Promontory is a global leader in strategy, risk management, and compliance consulting.#IBMConsulting” Source: RevenueBase Database · checked Sep 29, 2026
18	Exponens	Partial evidence	Paris, FranceHQ checked Sep 29, 2026	201-500	374 contacts →
	Partial evidence “Exponens is an independent group providing public accounting expertise, consultancy and auditing, with more than 300 employees, based in 9 offices in the Ile-de-France region.” Source: RevenueBase Database · checked Sep 29, 2026
19	Bm&a	Indirect evidence	Paris, FranceHQ checked Sep 29, 2026	201-500	345 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
20	Felix Advisory Private Limited	Partial evidence	Gurgaon, IndiaHQ checked Sep 29, 2026	201-500	331 contacts →
	Partial evidence “Felix Advisory is one of the leading providers of tax & regulatory services, risk, transaction, financial & business advisory, internal audit, and corporate governance services in…” Source: RevenueBase Database · checked Sep 29, 2026
21	Advisense	Partial evidence	Stockholm, SwedenHQ checked Sep 29, 2026	201-500	321 contacts →
	Partial evidence “Advisense is a leading governance, risk and compliance powerhouse, offering best-in-class services and tech solutions to the European industry.” Source: RevenueBase Database · checked Sep 29, 2026
22	Registrar Corp	Strong evidence	Hampton, VA, United StatesHQ checked Sep 29, 2026	51-200	317 contacts →
	Strong evidence “Registrar Corp is your trusted partner helping you navigate global regulatory requirements with expert services, innovative software solutions and comprehensive online compliance…” Source: RevenueBase Database · checked Sep 29, 2026
23	Comply	Partial evidence	New York City, NY, United StatesHQ checked Sep 29, 2026	201-500	308 contacts →
	Partial evidence “At Comply, we pride ourselves on being the champion for compliance professionals.” Source: RevenueBase Database · checked Sep 29, 2026
24	WST LAW & TAX Firm	Strong evidence	Milano, ItalyHQ checked Sep 29, 2026	201-500	300 contacts →
	Strong evidence “WST is a firm providing integrated consultancy in Legal, Tax, Risk, Compliance, ESG and Accounting areas of business.” Source: RevenueBase Database · checked Sep 29, 2026
25	Conselho Regional DE Contabilidade DO Estado DE SÃO Paulo Crcsp	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 29, 2026	51-200	279 contacts →
	Indirect evidence “O Conselho Regional de Contabilidade do Estado de São Paulo (CRCSP) é o órgão responsável pelo registro e fiscalização da profissão contábil e pelo desenvolvimento dos…” Source: RevenueBase Database · checked Sep 29, 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: regulatory compliance accounting 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 regulatory compliance accounting firms.
Partial evidence: Its own public description names part of regulatory compliance accounting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name regulatory compliance accounting 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 15,501 regulatory compliance accounting firms worldwide

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Regulatory compliance accounting firms worldwide at a glance

As of Sep 29, 2026

21.3%Verified-email coverage

9.8Average contacts per company

1-10Median size (employees)

2.1%Largest-city concentration · Sao Paulo

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

9,275

11-50

5,031

51-200

892

201-500

176

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 regulatory compliance accounting 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 regulatory compliance accounting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “regulatory compliance accounting 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 regulatory compliance accounting 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 regulatory compliance accounting 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, 32,483 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.

Regulatory compliance accounting firms by location

78 lists · largest first

Every Regulatory compliance accounting 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 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 regulatory compliance accounting 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 regulatory compliance accounting firms are there worldwide?

RevenueBase identified 15,501 regulatory compliance accounting 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?

Management Solutions, headquartered in Madrid, tops this list with the largest team on record.

Which country has the most regulatory compliance accounting firms?

India leads with 2,731 companies, followed by the United States (1,952) and Brazil (1,518). Every regulatory compliance accounting firms list by country and city is linked on this page.

Which city has the most regulatory compliance accounting firms?

Sao Paulo leads with 318 headquartered companies, followed by London (295) and New Delhi (266).

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 32,483 verified decision-maker contacts tracked across these 15,501 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.