Company lists · Data refreshed November 2026

Top 25 Professional services firms worldwide

Name: Professional services firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 6,941 companies tracked

RevenueBase identified 6,941 company matches for professional services firms worldwide as of November 2026 and tracks 757,635 professional contacts across them, including 264,386 with verified work emails. Sweden is the largest market and London the largest hub.

This list covers company matches for professional services 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 November 5, 2026. Country and city lists for professional services firms follow the table.

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

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built

6,941Companies

757,635Contacts tracked

264,386Verified emails

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The 25 largest professional services firms worldwide

Ranked by team size

Top 25 of 6,941 company matches for professional services firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Deloitte	Exact match	United StatesHQ recorded Nov 5, 2026	10001+	511,481 contacts →
	Exact match “Deloitte drives progress.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Kpmg India	Exact match	Gurgaon, IndiaHQ recorded Nov 5, 2026	10001+	30,313 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 · Nov 5, 2026 · View company records in RevenueBase
3	PWC India	Exact match	Kolkata, IndiaHQ recorded Nov 5, 2026	10001+	29,015 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 · Nov 5, 2026 · View company records in RevenueBase
4	Kpmg Australia	Exact match	Sydney, AustraliaHQ recorded Nov 5, 2026	5,001-10,000	9,151 contacts →
	Exact match “Welcome to KPMG.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	Kpmg España	Exact match	Madrid, SpainHQ recorded Nov 5, 2026	5,001-10,000	5,272 contacts →
	Exact match “KPMG in Spain is a professional services firm providing audit, tax, legal, financial, and business advisory services through a team of more than 6,200 professionals across 20…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	Eisneramper	Exact match	New York, CA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	4,410 contacts →
	Exact match “EisnerAmper, one of the largest business consulting firms in the world, is comprised of EisnerAmper LLP, a licensed independent CPA firm that provides client attest services; and…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	PWC Luxembourg	Exact match	LuxembourgHQ recorded Nov 5, 2026	1,001-5,000	3,425 contacts →
	Exact match “PwC Luxembourg is the largest professional services firm in Luxembourg with over 3,600 people employed from 90 different countries.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Citrin Cooperman	Exact match	Carlsbad, CA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	3,231 contacts →
	Exact match “Citrin Cooperman is one of the nation’s largest and fastest-growing professional services firms.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	PWC Malaysia	Exact match	Kuala Lumpur, MalaysiaHQ recorded Nov 5, 2026	1,001-5,000	3,042 contacts →
	Exact match “At PwC, we measure success by having a positive reputation.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	Sikich	Exact match	Chicago, IL, United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,918 contacts →
	Exact match “Sikich offers the public and private sectors a diverse platform of professional services across consulting, technology, and compliance.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	Kpmg Poland	Exact match	Warsaw, PolandHQ recorded Nov 5, 2026	1,001-5,000	1,741 contacts →
	Exact match “KPMG jest globalną organizacją niezależnych firm świadczących profesjonalne usługi z zakresu audytu, doradztwa podatkowego, finansowego, prawnego oraz consultingu.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	BDO In Indonesia	Exact match	Jakarta, IndonesiaHQ recorded Nov 5, 2026	501-1,000	1,729 contacts →
	Exact match “BDO is the leading provider of professional services within the mid-tier of our profession.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	PWC Norway	Exact match	Oslo, NorwayHQ recorded Nov 5, 2026	1,001-5,000	1,697 contacts →
	Exact match “PwC er et ledende globalt kompetansehus som bidrar med kunnskap, innsikt og verdiskapning.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	BPM LLP	Exact match	San Francisco, OR, United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,363 contacts →
	Exact match “Hi there, we're BPM!” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	BDO Norge	Exact match	Oslo, NorwayHQ recorded Nov 5, 2026	1,001-5,000	1,327 contacts →
	Exact match “We see great value in having a local presence and roots, factors which enable us to work closely with our clients.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Mallette	Exact match	Québec, QC, CanadaHQ recorded Nov 5, 2026	1,001-5,000	1,286 contacts →
	Exact match “Mallette compte plus de 40 bureaux solidement implantés dans plusieurs régions du Québec et regroupe plus de 1 600 ressources œuvrant dans différents secteurs d’activité.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	EXL Services LTD	Exact match	n/a	n/a	1,207 contacts →
	Exact match “Established in 1994, we provide a blend of business strategy, marketing services, behavioural change and executive coaching services and techniques to help grow the business of…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	AUREN	Exact match	Madrid, SpainHQ recorded Nov 5, 2026	1,001-5,000	1,177 contacts →
	Exact match “Auren es una firma española lider en servicios profesionales avanzados de auditoría, asesoría y consultoría cuyo objetivo es contribuir a la mejora en la gestión de las empresas.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	COGEP	Exact match	Saint-doulchard, FranceHQ recorded Nov 5, 2026	1,001-5,000	1,162 contacts →
	Exact match “Une vision augmentée du conseil au service de votre réussite.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Kpmg Finland	Exact match	Pl 1037, FinlandHQ recorded Nov 5, 2026	1,001-5,000	1,126 contacts →
	Exact match “KPMG is a global network of professional firms providing Audit, Tax, Legal and Advisory services.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	Rubinbrown LLP	Exact match	St. Louis, IL, United StatesHQ recorded Nov 5, 2026	501-1,000	1,117 contacts →
	Exact match “RubinBrown provides unmatched service to closely held and publicly traded companies in specialized market sectors as well as non-profit and public sector organizations.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	BDO Spain	Exact match	Madrid, SpainHQ recorded Nov 5, 2026	1,001-5,000	1,000 contacts →
	Exact match “BDO es una de las mayores firmas globales de servicios profesionales.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Grant Thornton España	Exact match	Madrid, SpainHQ recorded Nov 5, 2026	501-1,000	913 contacts →
	Exact match “En Grant Thornton España ayudamos a que tu empresa vaya más allá.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	BDO In Pakistan	Exact match	Karachi, PakistanHQ recorded Nov 5, 2026	501-1,000	856 contacts →
	Exact match “On January 1, 1951, Mr.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Orcom Cabinet D'expertise Comptable, Audit ET Conseil	Exact match	Orléans, FranceHQ recorded Nov 5, 2026	1,001-5,000	834 contacts →
	Exact match “Pour ORCOM, le conseil est un état d'esprit.” Recorded in the RevenueBase company graph · Nov 5, 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 “professional services 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 6,941 professional services firms worldwide

See the full list, filter by size, metro and specialty, and access 264,386 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Professional services firms worldwide at a glance

As of Nov 5, 2026

34.9%Verified-email coverage

109.2Average contacts per company

11-50Median size (employees)

1.8%Largest-city concentration · London

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

3,187

11-50

2,652

51-200

753

201-500

166

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for professional services firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “professional services 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 264,386 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 November 5, 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.

Professional services firms by location

385 lists · largest first

Every Professional services firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “professional services firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many professional services firms are there worldwide?

RevenueBase identified 6,941 company matches for professional services firms worldwide as of November 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 professional services firms?

Sweden leads with 1,040 companies, followed by the United States (903) and India (678). Every professional services firms list by country and city is linked on this page.

Which city has the most professional services firms?

London leads with 126 company records, followed by New Delhi (82) and Mumbai (78).

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 264,386 professional contacts with verified work emails tracked across these 6,941 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 November 5, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.