Company lists · Data refreshed September 2026
Top 25 Big four accounting firms worldwide
RevenueBase identified 20,420 company matches for big four accounting firms worldwide as of September 2026 and tracks 2,102,975 professional contacts across them, including 702,641 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers company matches for big four accounting 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 21, 2026. Country and city lists for big four accounting 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.
The 25 largest big four accounting firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 480,083 contacts → | ||||
Exact match “Deloitte drives progress.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 375,085 contacts → | ||||
Exact match “EY is building a better working world by creating new value for clients, people, society, the planet, while building trust in the capital markets.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 173,408 contacts → | ||||
Exact match “At PwC, we help clients drive their companies to the leading edge.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 68,443 contacts → | ||||
Exact match “KPMG is a global organization of independent professional services firms providing Audit, Tax and Advisory services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 28,997 contacts → | ||||
Exact match “KPMG entities in India are established under the laws of India and are owned and managed (as the case may be) by established Indian professionals.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 26,651 contacts → | ||||
Exact match “At PwC, we help clients build trust and reinvent so they can turn complexity into competitive advantage.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 11,078 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 8 | 10,534 contacts → | ||||
Exact match “Baker Tilly is a leading advisory, tax and assurance firm, providing clients with a genuine coast-to-coast and global advantage in major regions of the U.S.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 10,357 contacts → | ||||
Exact match “PwC is the leading auditing and consulting company in Germany.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 10,078 contacts → | ||||
Exact match “At BDO, our success is measured by what we achieve together.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 11 | 9,024 contacts → | ||||
Exact match “Welcome to KPMG.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 8,807 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 8,779 contacts → | ||||
Exact match “Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 8,773 contacts → | ||||
Exact match “MNP is a leading national accounting, tax and business consulting firm in Canada.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 8,390 contacts → | ||||
Exact match “Crowe provides professional services through two separate entities: Crowe LLP delivers audit and attest services, and Crowe Advisory LLC provides tax, advisory, consulting, and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 16 | 6,933 contacts → | ||||
Exact match “BDO LLP is an accountancy and business advisory firm that provides Audit, Tax, Deals, and Consulting, Risk & Outsourcing (CR & O) services to entrepreneurial, growing and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 17 | 6,485 contacts → | ||||
Exact match “Mazars is an internationally integrated partnership, specialising in audit, accountancy, advisory, tax and legal services*.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 18 | 6,369 contacts → | ||||
Exact match “CBIZ, Inc.(NYSE: CBZ) is a leading professional services advisor to middle-market businesses nationwide.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 6,148 contacts → | ||||
Exact match “BDO India is the Indian member firm of BDO, the world’s fifth-largest professional services organisation, operating in 166 countries and territories with a team of over…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 5,839 contacts → | ||||
Exact match “Leader de l'audit, du conseil et de l'expertise comptable, KPMG France est membre de KPMG International, réseau de cabinets indépendants exerçant dans 155 pays.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 5,764 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 22 | 5,551 contacts → | ||||
Exact match “A KPMG opera como uma rede internacional de firmas-membro que oferecem serviços nas áreas de Audit, Tax e Advisory.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 23 | 5,509 contacts → | ||||
Exact match “When choosing an advisor, you could accept the usual compromises.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 24 | 4,833 contacts → | ||||
Exact match “Canada’s Top 100 Employers 2025 I 2024 I 2023 I 2022 BDO Canada LLP is a leading provider of professional services to clients across a variety of sectors and segments.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 4,631 contacts → | ||||
Exact match “Co-founder Frank Moran often referred to our firm as “a people firm disguised as an accounting firm.” Why?” Recorded in the RevenueBase company graph · Sep 21, 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 “big four accounting 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 20,420 big four accounting firms worldwide
See the full list, filter by size, metro and specialty, and access 702,641 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Big four accounting firms worldwide at a glance
As of Sep 21, 2026Companies by employee count
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 big four accounting firms are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “big four accounting 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 702,641 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 21, 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.
Big four accounting firms by location
99 lists · largest firstEvery Big four accounting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Big four accounting firms based in the United States3,261
- Big four accounting firms based in Brazil1,696
- Big four accounting firms based in India1,670
- Big four accounting firms based in France1,364
- Big four accounting firms based in the United Kingdom848
- Big four accounting firms based in Germany647
- Big four accounting firms based in Canada471
- Big four accounting firms based in Italy465
- Big four accounting firms based in Australia412
- Big four accounting firms based in the United Arab Emirates366
- Big four accounting firms based in South Africa355
- Big four accounting firms based in Spain343
- Big four accounting firms based in Mexico261
- Big four accounting firms based in Türkiye229
- Big four accounting firms based in Pakistan211
- Big four accounting firms based in the Netherlands209
- Big four accounting firms based in Argentina207
- Big four accounting firms based in Colombia192
- Big four accounting firms based in Sweden179
- Big four accounting firms based in Portugal149
- Big four accounting firms based in Peru139
- Big four accounting firms based in Indonesia138
- Big four accounting firms based in Nigeria138
- Big four accounting firms based in Belgium136
- Big four accounting firms based in Cyprus135
- Big four accounting firms based in Denmark123
- Big four accounting firms based in Malaysia122
- Big four accounting firms based in Egypt120
- Big four accounting firms based in Morocco118
- Big four accounting firms based in Ireland117
- Big four accounting firms based in Norway115
- Big four accounting firms based in Chile112
- Big four accounting firms based in Kenya105
- Big four accounting firms based in Switzerland104
- Big four accounting firms based in Greece98
- Big four accounting firms based in Saudi Arabia90
- Big four accounting firms based in the Philippines90
- Big four accounting firms based in Ecuador81
- Big four accounting firms based in Poland76
- Big four accounting firms based in Austria69
- Big four accounting firms based in New Zealand65
- Big four accounting firms based in Romania63
- Big four accounting firms based in Bangladesh57
- Big four accounting firms based in Tanzania56
- Big four accounting firms based in Israel52
- Big four accounting firms based in Uruguay51
- Big four accounting firms based in Ghana49
- Big four accounting firms based in Hong Kong49
- Big four accounting firms based in Jordan46
- Big four accounting firms based in Malta44
- Big four accounting firms based in Tunisia42
- Big four accounting firms based in Qatar40
- Big four accounting firms based in Costa Rica39
- Big four accounting firms based in Uganda39
- Big four accounting firms based in Georgia37
- Big four accounting firms based in Croatia34
- Big four accounting firms based in Mauritius34
- Big four accounting firms based in Oman34
- Big four accounting firms based in Panama34
- Big four accounting firms based in Senegal33
- Big four accounting firms based in Puerto Rico32
- Big four accounting firms based in Serbia31
- Big four accounting firms based in Luxembourg25
Cities
- Big four accounting firms based in Sao Paulo, Brazil346
- Big four accounting firms based in Paris, France256
- Big four accounting firms based in Mumbai, India174
- Big four accounting firms based in New Delhi, India167
- Big four accounting firms based in Bangalore, India137
- Big four accounting firms based in New York, United States102
- Big four accounting firms based in Rio De Janeiro, Brazil88
- Big four accounting firms based in Pune, India85
- Big four accounting firms based in Delhi, India81
- Big four accounting firms based in Ahmedabad, India73
- Big four accounting firms based in Chennai, India73
- Big four accounting firms based in Curitiba, Brazil70
- Big four accounting firms based in Kolkata, India69
- Big four accounting firms based in Gurgaon, India65
- Big four accounting firms based in Belo Horizonte, Brazil63
- Big four accounting firms based in Houston, United States63
- Big four accounting firms based in Karachi, Pakistan61
- Big four accounting firms based in Toronto, Canada59
- Big four accounting firms based in Chicago, United States56
- Big four accounting firms based in Hyderabad, India56
- Big four accounting firms based in Atlanta, United States47
- Big four accounting firms based in Hamburg, Germany46
- Big four accounting firms based in Recife, Brazil43
- Big four accounting firms based in Los Angeles, United States38
- Big four accounting firms based in Lyon, France38
- Big four accounting firms based in Porto Alegre, Brazil38
- Big four accounting firms based in Vancouver, Canada34
- Big four accounting firms based in Campinas, Brazil32
- Big four accounting firms based in Toulouse, France32
- Big four accounting firms based in Noida, India28
- Big four accounting firms based in Berlin, Germany27
- Big four accounting firms based in Dallas, United States27
- Big four accounting firms based in Salvador, Brazil27
- Big four accounting firms based in Calgary, Canada26
- Big four accounting firms based in Marseille, France26
- Big four accounting firms based in Montreal, Canada26
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 “big four accounting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many big four accounting firms are there worldwide?
RevenueBase identified 20,420 company matches for big four accounting 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?
Deloitte tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most big four accounting firms?
The United States leads with 3,261 companies, followed by Brazil (1,696) and India (1,670). Every big four accounting firms list by country and city is linked on this page.
Which city has the most big four accounting firms?
Sao Paulo leads with 346 company records, followed by Paris (257) and London (212).
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 702,641 professional contacts with verified work emails tracked across these 20,420 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 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 20,420 big four accounting firms worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 big four accounting firms worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 20,420 matching company records for big four accounting firms worldwide, with 2,102,975 tracked contacts and 702,641 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 big four accounting firms worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | HQ: United StatesReported employees: 10001+ | United States | 10001+ | Exact match | 480,083 contacts → |
“Deloitte drives progress.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 375,085 contacts → |
“EY is building a better working world by creating new value for clients, people, society, the planet, while building trust in the capital markets.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: London, NY, United KingdomReported employees: 10001+ | London, NY, United Kingdom | 10001+ | Exact match | 173,408 contacts → |
“At PwC, we help clients drive their companies to the leading edge.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Berlin, SwitzerlandReported employees: 10001+ | Berlin, Switzerland | 10001+ | Exact match | 68,443 contacts → |
“KPMG is a global organization of independent professional services firms providing Audit, Tax and Advisory services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | HQ: Gurugram, IndiaReported employees: 10001+ | Gurugram, India | 10001+ | Exact match | 28,997 contacts → |
“KPMG entities in India are established under the laws of India and are owned and managed (as the case may be) by established Indian professionals.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | HQ: Kolkata, IndiaReported employees: 10001+ | Kolkata, India | 10001+ | Exact match | 26,651 contacts → |
“At PwC, we help clients build trust and reinvent so they can turn complexity into competitive advantage.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | HQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 11,078 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 8 | HQ: Chicago, IL, United StatesReported employees: 10001+ | Chicago, IL, United States | 10001+ | Exact match | 10,534 contacts → |
“Baker Tilly is a leading advisory, tax and assurance firm, providing clients with a genuine coast-to-coast and global advantage in major regions of the U.S.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: Frankfurt Am Main, GermanyReported employees: 10001+ | Frankfurt Am Main, Germany | 10001+ | Exact match | 10,357 contacts → |
“PwC is the leading auditing and consulting company in Germany.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HQ: Chicago, IL, United StatesReported employees: 10001+ | Chicago, IL, United States | 10001+ | Exact match | 10,078 contacts → |
“At BDO, our success is measured by what we achieve together.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Sydney, AustraliaReported employees: 5,001-10,000 | Sydney, Australia | 5,001-10,000 | Exact match | 9,024 contacts → |
“Welcome to KPMG.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Grant Thornton Bharat LLPgrantthornton.in HQ: New Delhi, IndiaReported employees: 10001+ | New Delhi, India | 10001+ | Exact match | 8,807 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | HQ: Menlo Park, CA, United StatesReported employees: 5,001-10,000 | Menlo Park, CA, United States | 5,001-10,000 | Exact match | 8,779 contacts → |
“Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HQ: Calgary, AB, CanadaReported employees: 5,001-10,000 | Calgary, AB, Canada | 5,001-10,000 | Exact match | 8,773 contacts → |
“MNP is a leading national accounting, tax and business consulting firm in Canada.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | HQ: Chicago, IL, United StatesReported employees: 5,001-10,000 | Chicago, IL, United States | 5,001-10,000 | Exact match | 8,390 contacts → |
“Crowe provides professional services through two separate entities: Crowe LLP delivers audit and attest services, and Crowe Advisory LLC provides tax, advisory, consulting, and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | HQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 6,933 contacts → |
“BDO LLP is an accountancy and business advisory firm that provides Audit, Tax, Deals, and Consulting, Risk & Outsourcing (CR & O) services to entrepreneurial, growing and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Paris La Defense, FranceReported employees: 10001+ | Paris La Defense, France | 10001+ | Exact match | 6,485 contacts → |
“Mazars is an internationally integrated partnership, specialising in audit, accountancy, advisory, tax and legal services*.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | HQ: Independence, OH, United StatesReported employees: 10001+ | Independence, OH, United States | 10001+ | Exact match | 6,369 contacts → |
“CBIZ, Inc.(NYSE: CBZ) is a leading professional services advisor to middle-market businesses nationwide.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: Mumbai, IndiaReported employees: 5,001-10,000 | Mumbai, India | 5,001-10,000 | Exact match | 6,148 contacts → |
“BDO India is the Indian member firm of BDO, the world’s fifth-largest professional services organisation, operating in 166 countries and territories with a team of over…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HQ: Paris La Défense, FranceReported employees: 10001+ | Paris La Défense, France | 10001+ | Exact match | 5,839 contacts → |
“Leader de l'audit, du conseil et de l'expertise comptable, KPMG France est membre de KPMG International, réseau de cabinets indépendants exerçant dans 155 pays.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: Makati City, PhilippinesReported employees: 5,001-10,000 | Makati City, Philippines | 5,001-10,000 | Exact match | 5,764 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | HQ: Sao Paulo, BrazilReported employees: 1,001-5,000 | Sao Paulo, Brazil | 1,001-5,000 | Exact match | 5,551 contacts → |
“A KPMG opera como uma rede internacional de firmas-membro que oferecem serviços nas áreas de Audit, Tax e Advisory.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | HQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 5,509 contacts → |
“When choosing an advisor, you could accept the usual compromises.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | HQ: Toronto, ON, CanadaReported employees: 1,001-5,000 | Toronto, ON, Canada | 1,001-5,000 | Exact match | 4,833 contacts → |
“Canada’s Top 100 Employers 2025 I 2024 I 2023 I 2022 BDO Canada LLP is a leading provider of professional services to clients across a variety of sectors and segments.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HQ: Southfield, MI, United StatesReported employees: 1,001-5,000 | Southfield, MI, United States | 1,001-5,000 | Exact match | 4,631 contacts → |
“Co-founder Frank Moran often referred to our firm as “a people firm disguised as an accounting firm.” Why?” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 20,420 company matches
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Big four accounting firms: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
20,337 records in the displayed employee bands.
83 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 20,420 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 21, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Big four accounting firms by location
99 lists · largest firstEvery Big four accounting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Big four accounting firms based in the United States3,261
- Big four accounting firms based in Brazil1,696
- Big four accounting firms based in India1,670
- Big four accounting firms based in France1,364
- Big four accounting firms based in the United Kingdom848
- Big four accounting firms based in Germany647
- Big four accounting firms based in Canada471
- Big four accounting firms based in Italy465
- Big four accounting firms based in Australia412
- Big four accounting firms based in the United Arab Emirates366
- Big four accounting firms based in South Africa355
- Big four accounting firms based in Spain343
- Big four accounting firms based in Mexico261
- Big four accounting firms based in Türkiye229
- Big four accounting firms based in Pakistan211
- Big four accounting firms based in the Netherlands209
- Big four accounting firms based in Argentina207
- Big four accounting firms based in Colombia192
- Big four accounting firms based in Sweden179
- Big four accounting firms based in Portugal149
- Big four accounting firms based in Peru139
- Big four accounting firms based in Indonesia138
- Big four accounting firms based in Nigeria138
- Big four accounting firms based in Belgium136
- Big four accounting firms based in Cyprus135
- Big four accounting firms based in Denmark123
- Big four accounting firms based in Malaysia122
- Big four accounting firms based in Egypt120
- Big four accounting firms based in Morocco118
- Big four accounting firms based in Ireland117
- Big four accounting firms based in Norway115
- Big four accounting firms based in Chile112
- Big four accounting firms based in Kenya105
- Big four accounting firms based in Switzerland104
- Big four accounting firms based in Greece98
- Big four accounting firms based in Saudi Arabia90
- Big four accounting firms based in the Philippines90
- Big four accounting firms based in Ecuador81
- Big four accounting firms based in Poland76
- Big four accounting firms based in Austria69
- Big four accounting firms based in New Zealand65
- Big four accounting firms based in Romania63
- Big four accounting firms based in Bangladesh57
- Big four accounting firms based in Tanzania56
- Big four accounting firms based in Israel52
- Big four accounting firms based in Uruguay51
- Big four accounting firms based in Ghana49
- Big four accounting firms based in Hong Kong49
- Big four accounting firms based in Jordan46
- Big four accounting firms based in Malta44
- Big four accounting firms based in Tunisia42
- Big four accounting firms based in Qatar40
- Big four accounting firms based in Costa Rica39
- Big four accounting firms based in Uganda39
- Big four accounting firms based in Georgia37
- Big four accounting firms based in Croatia34
- Big four accounting firms based in Mauritius34
- Big four accounting firms based in Oman34
- Big four accounting firms based in Panama34
- Big four accounting firms based in Senegal33
- Big four accounting firms based in Puerto Rico32
- Big four accounting firms based in Serbia31
- Big four accounting firms based in Luxembourg25
Cities
- Big four accounting firms based in Sao Paulo, Brazil346
- Big four accounting firms based in Paris, France256
- Big four accounting firms based in Mumbai, India174
- Big four accounting firms based in New Delhi, India167
- Big four accounting firms based in Bangalore, India137
- Big four accounting firms based in New York, United States102
- Big four accounting firms based in Rio De Janeiro, Brazil88
- Big four accounting firms based in Pune, India85
- Big four accounting firms based in Delhi, India81
- Big four accounting firms based in Ahmedabad, India73
- Big four accounting firms based in Chennai, India73
- Big four accounting firms based in Curitiba, Brazil70
- Big four accounting firms based in Kolkata, India69
- Big four accounting firms based in Gurgaon, India65
- Big four accounting firms based in Belo Horizonte, Brazil63
- Big four accounting firms based in Houston, United States63
- Big four accounting firms based in Karachi, Pakistan61
- Big four accounting firms based in Toronto, Canada59
- Big four accounting firms based in Chicago, United States56
- Big four accounting firms based in Hyderabad, India56
- Big four accounting firms based in Atlanta, United States47
- Big four accounting firms based in Hamburg, Germany46
- Big four accounting firms based in Recife, Brazil43
- Big four accounting firms based in Los Angeles, United States38
- Big four accounting firms based in Lyon, France38
- Big four accounting firms based in Porto Alegre, Brazil38
- Big four accounting firms based in Vancouver, Canada34
- Big four accounting firms based in Campinas, Brazil32
- Big four accounting firms based in Toulouse, France32
- Big four accounting firms based in Noida, India28
- Big four accounting firms based in Berlin, Germany27
- Big four accounting firms based in Dallas, United States27
- Big four accounting firms based in Salvador, Brazil27
- Big four accounting firms based in Calgary, Canada26
- Big four accounting firms based in Marseille, France26
- Big four accounting firms based in Montreal, Canada26
Questions about this company list
What does Exact match mean for big four accounting firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many big four accounting firms did RevenueBase find worldwide?
The saved snapshot records 20,420 matching company records, 2,102,975 tracked contacts and 702,641 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 big four accounting firms worldwide. Snapshot: September 21, 2026. https://revenuebase.ai/companies/browse/big-four-accounting-firms.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 big four accounting firms worldwide
RevenueBase records 20,420 matching company records for big four accounting firms worldwide, with 2,102,975 tracked contacts and 702,641 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 big four accounting firms worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | HQ: United StatesReported employees: 10001+ | United States | 10001+ | Exact match | 480,083 contacts → |
“Deloitte drives progress.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 375,085 contacts → |
“EY is building a better working world by creating new value for clients, people, society, the planet, while building trust in the capital markets.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: London, NY, United KingdomReported employees: 10001+ | London, NY, United Kingdom | 10001+ | Exact match | 173,408 contacts → |
“At PwC, we help clients drive their companies to the leading edge.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Berlin, SwitzerlandReported employees: 10001+ | Berlin, Switzerland | 10001+ | Exact match | 68,443 contacts → |
“KPMG is a global organization of independent professional services firms providing Audit, Tax and Advisory services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | HQ: Gurugram, IndiaReported employees: 10001+ | Gurugram, India | 10001+ | Exact match | 28,997 contacts → |
“KPMG entities in India are established under the laws of India and are owned and managed (as the case may be) by established Indian professionals.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | HQ: Kolkata, IndiaReported employees: 10001+ | Kolkata, India | 10001+ | Exact match | 26,651 contacts → |
“At PwC, we help clients build trust and reinvent so they can turn complexity into competitive advantage.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | HQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 11,078 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 8 | HQ: Chicago, IL, United StatesReported employees: 10001+ | Chicago, IL, United States | 10001+ | Exact match | 10,534 contacts → |
“Baker Tilly is a leading advisory, tax and assurance firm, providing clients with a genuine coast-to-coast and global advantage in major regions of the U.S.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: Frankfurt Am Main, GermanyReported employees: 10001+ | Frankfurt Am Main, Germany | 10001+ | Exact match | 10,357 contacts → |
“PwC is the leading auditing and consulting company in Germany.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HQ: Chicago, IL, United StatesReported employees: 10001+ | Chicago, IL, United States | 10001+ | Exact match | 10,078 contacts → |
“At BDO, our success is measured by what we achieve together.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Sydney, AustraliaReported employees: 5,001-10,000 | Sydney, Australia | 5,001-10,000 | Exact match | 9,024 contacts → |
“Welcome to KPMG.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Grant Thornton Bharat LLPgrantthornton.in HQ: New Delhi, IndiaReported employees: 10001+ | New Delhi, India | 10001+ | Exact match | 8,807 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | HQ: Menlo Park, CA, United StatesReported employees: 5,001-10,000 | Menlo Park, CA, United States | 5,001-10,000 | Exact match | 8,779 contacts → |
“Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HQ: Calgary, AB, CanadaReported employees: 5,001-10,000 | Calgary, AB, Canada | 5,001-10,000 | Exact match | 8,773 contacts → |
“MNP is a leading national accounting, tax and business consulting firm in Canada.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | HQ: Chicago, IL, United StatesReported employees: 5,001-10,000 | Chicago, IL, United States | 5,001-10,000 | Exact match | 8,390 contacts → |
“Crowe provides professional services through two separate entities: Crowe LLP delivers audit and attest services, and Crowe Advisory LLC provides tax, advisory, consulting, and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | HQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 6,933 contacts → |
“BDO LLP is an accountancy and business advisory firm that provides Audit, Tax, Deals, and Consulting, Risk & Outsourcing (CR & O) services to entrepreneurial, growing and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Paris La Defense, FranceReported employees: 10001+ | Paris La Defense, France | 10001+ | Exact match | 6,485 contacts → |
“Mazars is an internationally integrated partnership, specialising in audit, accountancy, advisory, tax and legal services*.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | HQ: Independence, OH, United StatesReported employees: 10001+ | Independence, OH, United States | 10001+ | Exact match | 6,369 contacts → |
“CBIZ, Inc.(NYSE: CBZ) is a leading professional services advisor to middle-market businesses nationwide.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: Mumbai, IndiaReported employees: 5,001-10,000 | Mumbai, India | 5,001-10,000 | Exact match | 6,148 contacts → |
“BDO India is the Indian member firm of BDO, the world’s fifth-largest professional services organisation, operating in 166 countries and territories with a team of over…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HQ: Paris La Défense, FranceReported employees: 10001+ | Paris La Défense, France | 10001+ | Exact match | 5,839 contacts → |
“Leader de l'audit, du conseil et de l'expertise comptable, KPMG France est membre de KPMG International, réseau de cabinets indépendants exerçant dans 155 pays.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: Makati City, PhilippinesReported employees: 5,001-10,000 | Makati City, Philippines | 5,001-10,000 | Exact match | 5,764 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | HQ: Sao Paulo, BrazilReported employees: 1,001-5,000 | Sao Paulo, Brazil | 1,001-5,000 | Exact match | 5,551 contacts → |
“A KPMG opera como uma rede internacional de firmas-membro que oferecem serviços nas áreas de Audit, Tax e Advisory.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | HQ: London, United KingdomReported employees: 5,001-10,000 | London, United Kingdom | 5,001-10,000 | Exact match | 5,509 contacts → |
“When choosing an advisor, you could accept the usual compromises.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | HQ: Toronto, ON, CanadaReported employees: 1,001-5,000 | Toronto, ON, Canada | 1,001-5,000 | Exact match | 4,833 contacts → |
“Canada’s Top 100 Employers 2025 I 2024 I 2023 I 2022 BDO Canada LLP is a leading provider of professional services to clients across a variety of sectors and segments.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HQ: Southfield, MI, United StatesReported employees: 1,001-5,000 | Southfield, MI, United States | 1,001-5,000 | Exact match | 4,631 contacts → |
“Co-founder Frank Moran often referred to our firm as “a people firm disguised as an accounting firm.” Why?” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 20,420 company matches
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Big four accounting firms: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
20,337 records in the displayed employee bands.
83 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 20,420 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 21, 2026.
Publisher-reported method study
The published RevenueBase SmartSearch benchmark
86% good or better at Exact
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. It reports 86% of Exact matches judged good or better, and 77% for a 240-pair sample of one- or two-word categories. This evaluates the method across study queries rather than auditing this individual list.
Read the study and full methodology ↗RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Big four accounting firms by location
99 lists · largest firstEvery Big four accounting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Big four accounting firms based in the United States3,261
- Big four accounting firms based in Brazil1,696
- Big four accounting firms based in India1,670
- Big four accounting firms based in France1,364
- Big four accounting firms based in the United Kingdom848
- Big four accounting firms based in Germany647
- Big four accounting firms based in Canada471
- Big four accounting firms based in Italy465
- Big four accounting firms based in Australia412
- Big four accounting firms based in the United Arab Emirates366
- Big four accounting firms based in South Africa355
- Big four accounting firms based in Spain343
- Big four accounting firms based in Mexico261
- Big four accounting firms based in Türkiye229
- Big four accounting firms based in Pakistan211
- Big four accounting firms based in the Netherlands209
- Big four accounting firms based in Argentina207
- Big four accounting firms based in Colombia192
- Big four accounting firms based in Sweden179
- Big four accounting firms based in Portugal149
- Big four accounting firms based in Peru139
- Big four accounting firms based in Indonesia138
- Big four accounting firms based in Nigeria138
- Big four accounting firms based in Belgium136
- Big four accounting firms based in Cyprus135
- Big four accounting firms based in Denmark123
- Big four accounting firms based in Malaysia122
- Big four accounting firms based in Egypt120
- Big four accounting firms based in Morocco118
- Big four accounting firms based in Ireland117
- Big four accounting firms based in Norway115
- Big four accounting firms based in Chile112
- Big four accounting firms based in Kenya105
- Big four accounting firms based in Switzerland104
- Big four accounting firms based in Greece98
- Big four accounting firms based in Saudi Arabia90
- Big four accounting firms based in the Philippines90
- Big four accounting firms based in Ecuador81
- Big four accounting firms based in Poland76
- Big four accounting firms based in Austria69
- Big four accounting firms based in New Zealand65
- Big four accounting firms based in Romania63
- Big four accounting firms based in Bangladesh57
- Big four accounting firms based in Tanzania56
- Big four accounting firms based in Israel52
- Big four accounting firms based in Uruguay51
- Big four accounting firms based in Ghana49
- Big four accounting firms based in Hong Kong49
- Big four accounting firms based in Jordan46
- Big four accounting firms based in Malta44
- Big four accounting firms based in Tunisia42
- Big four accounting firms based in Qatar40
- Big four accounting firms based in Costa Rica39
- Big four accounting firms based in Uganda39
- Big four accounting firms based in Georgia37
- Big four accounting firms based in Croatia34
- Big four accounting firms based in Mauritius34
- Big four accounting firms based in Oman34
- Big four accounting firms based in Panama34
- Big four accounting firms based in Senegal33
- Big four accounting firms based in Puerto Rico32
- Big four accounting firms based in Serbia31
- Big four accounting firms based in Luxembourg25
Cities
- Big four accounting firms based in Sao Paulo, Brazil346
- Big four accounting firms based in Paris, France256
- Big four accounting firms based in Mumbai, India174
- Big four accounting firms based in New Delhi, India167
- Big four accounting firms based in Bangalore, India137
- Big four accounting firms based in New York, United States102
- Big four accounting firms based in Rio De Janeiro, Brazil88
- Big four accounting firms based in Pune, India85
- Big four accounting firms based in Delhi, India81
- Big four accounting firms based in Ahmedabad, India73
- Big four accounting firms based in Chennai, India73
- Big four accounting firms based in Curitiba, Brazil70
- Big four accounting firms based in Kolkata, India69
- Big four accounting firms based in Gurgaon, India65
- Big four accounting firms based in Belo Horizonte, Brazil63
- Big four accounting firms based in Houston, United States63
- Big four accounting firms based in Karachi, Pakistan61
- Big four accounting firms based in Toronto, Canada59
- Big four accounting firms based in Chicago, United States56
- Big four accounting firms based in Hyderabad, India56
- Big four accounting firms based in Atlanta, United States47
- Big four accounting firms based in Hamburg, Germany46
- Big four accounting firms based in Recife, Brazil43
- Big four accounting firms based in Los Angeles, United States38
- Big four accounting firms based in Lyon, France38
- Big four accounting firms based in Porto Alegre, Brazil38
- Big four accounting firms based in Vancouver, Canada34
- Big four accounting firms based in Campinas, Brazil32
- Big four accounting firms based in Toulouse, France32
- Big four accounting firms based in Noida, India28
- Big four accounting firms based in Berlin, Germany27
- Big four accounting firms based in Dallas, United States27
- Big four accounting firms based in Salvador, Brazil27
- Big four accounting firms based in Calgary, Canada26
- Big four accounting firms based in Marseille, France26
- Big four accounting firms based in Montreal, Canada26
Questions about this company list
What does Exact match mean for big four accounting firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many big four accounting firms did RevenueBase find worldwide?
The saved snapshot records 20,420 matching company records, 2,102,975 tracked contacts and 702,641 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 big four accounting firms worldwide. Snapshot: September 21, 2026. https://revenuebase.ai/companies/browse/big-four-accounting-firms.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗