Company lists · Data refreshed November 2026

Top 25 Professional services networks worldwide

RevenueBase identified 10,458 company matches for professional services networks worldwide as of November 2026 and tracks 1,405,555 professional contacts across them, including 440,151 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for professional services networks 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 networks 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
10,458Companies
1,405,555Contacts tracked
440,151Verified emails
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The 25 largest professional services networks worldwide

Ranked by team size
Top 25 of 10,458 company matches for professional services networks 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchUnited StatesHQ recorded Nov 5, 202610001+511,481 contacts →

Exact match

“Deloitte drives progress.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchLondon, NY, United KingdomHQ recorded Nov 5, 202610001+183,494 contacts →

Exact match

“At PwC, we help clients drive their companies to the leading edge.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchLondon, SwitzerlandHQ recorded Nov 5, 202610001+75,210 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 · Nov 5, 2026 · View company records in RevenueBase
4Exact matchGurgaon, IndiaHQ recorded Nov 5, 202610001+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
5Exact matchKolkata, IndiaHQ recorded Nov 5, 202610001+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
6Exact matchBrazilHQ recorded Nov 5, 202610001+16,604 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchBrussels, BelgiumHQ recorded Nov 5, 202610001+14,501 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
8Exact matchChicago, IL, United StatesHQ recorded Nov 5, 202610001+10,838 contacts →

Exact match

“Every business is different-and the strongest decisions come from collaborating with a firm that understands how yours truly works.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchSydney, AustraliaHQ recorded Nov 5, 20265,001-10,0009,151 contacts →

Exact match

“Welcome to KPMG.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchChicago, VT, United StatesHQ recorded Nov 5, 20265,001-10,0009,024 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 · Nov 5, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Nov 5, 20265,001-10,0007,139 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 · Nov 5, 2026 · View company records in RevenueBase
12Exact matchParis La Defense, FranceHQ recorded Nov 5, 202610001+6,455 contacts →

Exact match

“Mazars is an internationally integrated partnership, specialising in audit, accountancy, advisory, tax and legal services*.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchSao Paulo, BrazilHQ recorded Nov 5, 20261,001-5,0006,138 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 · Nov 5, 2026 · View company records in RevenueBase
14Exact matchParis La Défense, FranceHQ recorded Nov 5, 202610001+5,822 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 · Nov 5, 2026 · View company records in RevenueBase
15Exact matchToronto, ON, CanadaHQ recorded Nov 5, 20261,001-5,0005,079 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 · Nov 5, 2026 · View company records in RevenueBase
16Exact matchSouthfield, IL, United StatesHQ recorded Nov 5, 20261,001-5,0004,927 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 · Nov 5, 2026 · View company records in RevenueBase
17Exact matchNew York, CA, United StatesHQ recorded Nov 5, 20261,001-5,0004,410 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
18Exact matchLondon, United KingdomHQ recorded Nov 5, 20261,001-5,0004,074 contacts →

Exact match

“Pinsent Masons is a multinational professional services business with a robust legal foundation, operating with a clear purpose-led strategy.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Nov 5, 202610001+3,790 contacts →

Exact match

“RSM is a leading global network of assurance, tax and consulting firms focused on the middle-market.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchSingaporeHQ recorded Nov 5, 20261,001-5,0003,728 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 · Nov 5, 2026 · View company records in RevenueBase
21Exact matchSan Francisco, FL, United StatesHQ recorded Nov 5, 20261,001-5,0003,524 contacts →

Exact match

“Andersen is the founding member of Andersen Global, an international association of legally separate, independent member firms with more than professionals worldwide, over global…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchBangalore, IndiaHQ recorded Nov 5, 20261,001-5,0003,490 contacts →

Exact match

“BDO RISE stands for round-the-clock international services for excellence and is dedicated to providing exceptional client service in the global economy to BDO USA.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchLevallois-perret, FranceHQ recorded Nov 5, 202610001+3,450 contacts →

Exact match

“Forvis Mazars Group SC is an independent member of Forvis Mazars Global, a leading global professional services network.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchLuxembourgHQ recorded Nov 5, 20261,001-5,0003,425 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
25Exact matchAtlanta, GA, United StatesHQ recorded Nov 5, 20261,001-5,0003,336 contacts →

Exact match

“Aprio is redefining what it means to be a global advisory and accounting firm.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 10,458 professional services networks worldwide

See the full list, filter by size, metro and specialty, and access 440,151 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Professional services networks worldwide at a glance

As of Nov 5, 2026
31.3%Verified-email coverage
134.4Average contacts per company
11-50Median size (employees)
2.0%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
3,910
11-50
3,987
51-200
1,478
201-500
464
501-1,000
191
1,001-5,000
221
5,001-10,000
52
10001+
102

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 networks are linked below.
What qualifies
Company records worldwide whose business descriptions match “professional services networks” 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 440,151 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 networks by location

72 lists · largest first

Every Professional services networks 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 networks”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many professional services networks are there worldwide?

RevenueBase identified 10,458 company matches for professional services networks 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 networks?

The United States leads with 1,139 companies, followed by France (774) and India (729). Every professional services networks list by country and city is linked on this page.

Which city has the most professional services networks?

London leads with 213 company records, followed by Milan (131) and Paris (131).

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 440,151 professional contacts with verified work emails tracked across these 10,458 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.