Company lists · Data refreshed September 2026

Top 25 Soc 2 audit firms worldwide

RevenueBase identified 356 soc 2 audit firms worldwide as of September 2026 and tracks 3,111 professional contacts across them, including 1,283 with verified work emails. The United States is the largest market and Paris the largest hub.

This list covers soc 2 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 22, 2026. Country and city lists for soc 2 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 22, 2026 86% judged on-target in blind review
356Companies
3,111Contacts tracked
1,283Verified emails
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The 25 largest soc 2 audit firms worldwide

Ranked by team size
Top 25 of 356 soc 2 audit firms worldwide, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to soc 2 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceTampa, FL, United StatesHQ checked Sep 22, 2026501-1,000798 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
2Indirect evidenceNashville, TN, United StatesHQ checked Sep 22, 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 22, 2026
3Indirect evidenceŁódź, PolandHQ checked Sep 22, 202651-20076 contacts →

Indirect evidence

“Jesteśmy dynamicznie rozwijającą się Kancelarią Biegłych Rewidentów, założoną w 2010 roku.”

Source: RevenueBase Database · checked Sep 22, 2026
4Indirect evidenceMumbai, IndiaHQ checked Sep 22, 202611-5069 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
5Partial evidenceMumbai, IndiaHQ checked Sep 22, 202611-5067 contacts →

Partial 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 22, 2026
6Partial evidenceTbilisi, GeorgiaHQ checked Sep 22, 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 22, 2026
7Partial evidenceColorado Springs, CO, United StatesHQ checked Sep 22, 202651-20046 contacts →

Partial evidence

“Johanson Group has provided Security & Compliance Audit Services to public and private companies in a variety of industries across the world.”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceBologna, ItalyHQ checked Sep 22, 202611-5045 contacts →

Indirect evidence

“Founded in 1984, Uniaudit has been providing top-quality professional services as a registered statutory auditor.”

Source: RevenueBase Database · checked Sep 22, 2026
9Partial evidenceLuxembourgHQ checked Sep 22, 202611-5040 contacts →

Partial evidence

“PKF Audit & Conseil est devenu un cabinet indépendant et un membre du réseau PKF International depuis 2018.”

Source: RevenueBase Database · checked Sep 22, 2026
10Indirect evidenceBeykoz, TürkiyeHQ checked Sep 22, 202611-5038 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceSeattle, WA, United StatesHQ checked Sep 22, 2026n/a33 contacts →

Indirect evidence

“Advantage Partners is a security & compliance organization dedicated to helping emerging technology companies navigate the complexities of security and compliance.”

Source: RevenueBase Database · checked Sep 22, 2026
12Indirect evidenceLillestrøm, NorwayHQ checked Sep 22, 202611-5033 contacts →

Indirect evidence

“SLM Revisjon AS is an authorized auditing firm with 32 employees, located in central Lillestrøm.”

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidenceDenver, CO, United StatesHQ checked Sep 22, 202611-5031 contacts →

Indirect evidence

“Linford & Company LLP is a Denver-based Certified Public Accounting firm comprised of former “Big Four” auditors and Information Security experts.”

Source: RevenueBase Database · checked Sep 22, 2026
14Indirect evidenceBraintree, MA, United StatesHQ checked Sep 22, 202651-20031 contacts →

Indirect evidence

“At OCD Tech, we provide independent and objective assurance of your IT controls.”

Source: RevenueBase Database · checked Sep 22, 2026
15Partial evidenceAmsterdam, NetherlandsHQ checked Sep 22, 202611-5025 contacts →

Partial evidence

“Confinant is a boutique audit firm.”

Source: RevenueBase Database · checked Sep 22, 2026
16Indirect evidenceSao Paulo, BrazilHQ checked Sep 22, 202611-5022 contacts →

Indirect evidence

“A Finaud foi constituída em setembro de Está registrada no Conselho Regional de Contabilidade do Estado de São Paulo e na CVM - Comissão de Valores Mobiliários e portanto…”

Source: RevenueBase Database · checked Sep 22, 2026
17Indirect evidenceIrvine, CA, United StatesHQ checked Sep 22, 202611-5020 contacts →

Indirect evidence

“KMJ provides accounting, auditing, tax and consulting services to public and private companies in the small to middle markets.”

Source: RevenueBase Database · checked Sep 22, 2026
18Indirect evidenceTampa, FL, United StatesHQ checked Sep 22, 202611-5019 contacts →

Indirect evidence

“Auditwerx specializes in providing professional security compliance solutions for service organizations big and small.”

Source: RevenueBase Database · checked Sep 22, 2026
19Partial evidenceOrange, AustraliaHQ checked Sep 22, 20261-1019 contacts →

Partial evidence

“We are a specialist, audit only firm providing professional audit and assurance services throughout New South Wales.”

Source: RevenueBase Database · checked Sep 22, 2026
20Indirect evidenceJoensuu, FinlandHQ checked Sep 22, 202611-5018 contacts →

Indirect evidence

“Olemme pohjoiskarjalainen tilintarkastusyhteisö ja olemme alueellisesti suurin itsenäinen toimija.”

Source: RevenueBase Database · checked Sep 22, 2026
21Partial evidenceSouth Brisbane, AustraliaHQ checked Sep 22, 202611-5016 contacts →

Partial evidence

“We provide exceptional, modern, efficient audit and assurance services maximising the smart use of technology whilst maintaining a personal touch.”

Source: RevenueBase Database · checked Sep 22, 2026
22Partial evidenceDen Haag, NetherlandsHQ checked Sep 22, 202611-5014 contacts →

Partial evidence

“The Audit Company is an established name in the auditing with a long history.”

Source: RevenueBase Database · checked Sep 22, 2026
23Indirect evidencePennsauken, NJ, United StatesHQ checked Sep 22, 20261-1014 contacts →

Indirect evidence

“Cyber Cops, is a premium cyber security company and is committed to safeguarding your digital world and protecting your most valuable assets.”

Source: RevenueBase Database · checked Sep 22, 2026
24Indirect evidenceRoma Norte, MexicoHQ checked Sep 22, 202651-20013 contacts →

Indirect evidence

“Somos una firma de prestigio que desde hace más de 44 años ofrece auditorías externas e internas, y consultoría, para todo tipo de empresas.”

Source: RevenueBase Database · checked Sep 22, 2026
25Indirect evidenceReigate, United KingdomHQ checked Sep 22, 202611-5013 contacts →

Indirect evidence

“We are registered auditors and have a wide experience in reporting under the Companies Act and the special rules which govern solicitors.”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 25 of 356 soc 2 audit firms worldwide

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Soc 2 audit firms worldwide at a glance

As of Sep 22, 2026
41.2%Verified-email coverage
8.7Average contacts per company
1-10Median size (employees)
2.0%Largest-city concentration · Paris
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
205
11-50
128
51-200
18
201-500
1
501-1,000
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 soc 2 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 soc 2 audit firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “soc 2 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 soc 2 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 soc 2 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, 1,283 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 22, 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.

Soc 2 audit firms by location

1 lists · largest first

Every Soc 2 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 soc 2 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 soc 2 audit firms are there worldwide?

RevenueBase identified 356 soc 2 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?

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

Which country has the most soc 2 audit firms?

The United States leads with 82 companies. Every soc 2 audit firms list by country and city is linked on this page.

Which city has the most soc 2 audit firms?

Paris leads with 7 headquartered companies, followed by Mumbai (6) and Sao Paulo (6).

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 1,283 verified decision-maker contacts tracked across these 356 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 22, 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.