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Top 100 accounting firms in Europe

Tamtam tracks 2,855 accounting firms headquartered in Europe. This list ranks the 100 largest by number of employees on LinkedIn, led by EY, KPMG Italy and BDO. Their median headcount is 2,025. Half of them were founded in 1964 or later. The most common headquarters are London (18), Paris (7) and Stockholm (5).

🌍 Europe100 companiesUpdated Nov 13, 2026

This selection features large professional services and accounting firms operating across Europe, many of which are global networks with significant local presences. The companies listed are predominantly large groups, reflecting the scale required to offer comprehensive audit, tax, and advisory services across multiple jurisdictions.

EY, with over 400,000 employees, offers assurance, consulting, and tax services globally. KPMG Italy provides audit, advisory, and tax services, while BDO focuses on professional services worldwide. Mazars is a global integrated partnership delivering audit and advisory services. PwC Deutschland is a leading auditing and consulting firm in Germany, and TMF Group provides global administrative, financial, and legal support.

#CompanyIndustryHeadquarters EmployeesFounded
1
EYey.com

A global organization with diverse teams in over 150 countries provides assurance, consulting, law, strategy, tax, and transactions to help clients grow and transform

Professional Services 🇬🇧 London 404,207 n/a
2
KPMG Italykpmg.com

A global professional services network providing audit, advisory, tax, and legal services to businesses worldwide, focusing on building trust and driving change

Business Consulting and Services 🇮🇹 Milan 265,000 1987
3
BDObdo.global

Providing professional services globally with 1800 offices, focusing on quality, technology, and innovative solutions for long-term client value.

Accounting 🇧🇪 Brussels 51,974 n/a
4
Mazarsforvismazars.com

Global integrated partnership providing audit, accountancy, advisory, tax, and legal services through fifty thousand professionals across more than one hundred countries worldwide.

Accounting 🇫🇷 Paris La Defense 42,000 1945
5
KPMG UKkpmg.com

A leading UK provider of tax, audit, and advisory services with a global presence, focusing on innovative solutions and expertise for clients' needs

Business Consulting and Services 🇬🇧 London 15,102 1987
6
PwC Deutschlandpwc.de

A leading auditing and consulting firm in Germany, offering services worldwide with expertise in assurance, tax, legal, deals, and strategy advisory

Business Consulting and Services 🇩🇪 Frankfurt 11,566 n/a
7
TMF Grouptmf-group.com

Provides global administrative, financial, and legal support, helping companies navigate complex regulations and operate safely across numerous international markets.

Financial Services 🇳🇱 Amsterdam 11,186 1988
8
PwC UKpwc.co.uk

Professional services firm focusing on building trust in society and solving important problems through partnership and commercial expertise.

Accounting 🇬🇧 London 10,873 n/a
9
KPMG Deutschlandkpmg.com

Providing audit, tax, consulting, and deal advisory services with interdisciplinary teams specializing in key industries across multiple locations.

Business Consulting and Services 🇩🇪 Berlin 9,823 n/a
10
Forvis Mazars Groupforvismazars.com

International partnership delivering audit, tax, and advisory services across one hundred countries and territories through an integrated global professional services network.

Accounting 🇫🇷 Levallois-Perret 9,534 n/a
11
PwC Italypwc.com

PwC Italia is an organization part of the international PwC network, working with over 8,000 professionals in 24 Italian cities to create trust and solve important issues

Professional Services 🇮🇹 Milan 7,793 1849
12
Azetsazets.com

A leading professional services firm in Northern Europe, providing advisory, accounting, audit, HR, recruitment, outsourcing, and technology solutions to clients

Accounting 🇬🇧 London 7,523 n/a
13
BDO UKbdo.co.uk

Provides tax, audit, assurance, accounting, business advisory, and outsourcing services to diverse sectors with a client-focused, innovative approach.

Accounting 🇬🇧 London 6,800 1903
14
Grant Thornton UKgrantthornton.co.uk

Providing assurance, tax, and advisory services through a global network, combining local insight with flexible, client-focused solutions.

Accounting 🇬🇧 London 5,972 1904
15
KPMG Francekpmg.com

Professionals providing audit, consulting, and accounting expertise to international key accounts, mid-sized companies, family groups, and very small businesses across various sectors.

Business Consulting and Services 🇫🇷 Paris La Défense 5,803 n/a
16
Daviesdavies-group.com

Specialist professional services and technology firm providing risk management, business process optimization, and digital transformation solutions to insurance, regulated, and global businesses

Insurance 🇬🇧 London 5,693 n/a
17
KPMG Españakpmg.com

Professional services firm providing audit, tax, legal, financial, and business advisory with global expertise and local market knowledge.

Professional Services 🇪🇸 Madrid 5,523 n/a
18
Cerfrancecerfrance.fr

Provides comprehensive accounting and consulting services across France. Supports businesses and individuals in various sectors with management, administrative, and legal aspects.

Accounting 🇫🇷 Paris 5,502 1957
19
RSM UKrsmuk.com

Professional services network providing expertise, resources, and client-focused solutions to empower businesses with confidence and deep understanding.

Accounting 🇬🇧 London 5,025 1988
20
Cerfrance Gascogne Occitanewelcometothejungle.com

Cerfrance GO offers personalized expertise in accounting and business advisory services for various sectors, using modern digital tools and emphasizing client proximity and employee development

Accounting 🇫🇷 Muret 4,400 1954
21
PwC Polskapwc.pl

Providing legal, tax, business, and audit solutions to diverse clients across sectors, supporting both large corporations and local enterprises.

Business Consulting and Services 🇵🇱 Warsaw 4,370 n/a
22
Fiducialfiducial.fr

An international provider of professional services specializing in business counseling, bookkeeping, payroll, tax, and financial management for small businesses and individuals

Business Consulting and Services 🇫🇷 La Défense 4,300 1970
23
PwC Francepwc.fr

Offers consulting, audit, legal, and tax expertise, blending technology with multidisciplinary knowledge to accelerate sustainable business transformation for organizations.

Business Consulting and Services 🇫🇷 Neuilly-sur-Seine 4,109 n/a
24
RSMrsm.global

Global network providing assurance, tax, and consulting services focused on middle-market businesses with client-centric, insightful, and resource-sharing approach.

Professional Services 🇬🇧 London 4,090 1964
25
KPMG Nederlandkpmg.com

This company provides high-quality audit, tax, and advisory services to a wide range of clients, helping them navigate complex challenges and excel

Financial Services 🇳🇱 Amstelveen 4,008 n/a
26
Moore Globalmoore-global.com

Global accounting and advisory firm with over 37,000 professionals in 114 countries, dedicated to helping clients thrive through expert guidance and support

Accounting 🇬🇧 London 3,884 1907
27
PwC Españapwc.es

Provides audit, tax, legal, consulting, and transaction services across Spain, helping businesses navigate change and build trust.

Business Consulting and Services 🇪🇸 Madrid 3,761 1929
28
PwC Nederlandpwc.nl

A global company providing advisory, assurance, digital, and tax services aiming to solve major societal issues and build trust in the world

Business Consulting and Services 🇳🇱 Amsterdam 3,568 1800
29
PwC Luxembourgpwc.lu

Largest professional services firm providing audit, tax, and advisory services, including management consulting, to diverse local and multinational clients in Luxembourg.

Financial Services 🇱🇺 Luxembourg 3,543 n/a
30
In Extensoinextenso.fr

French accounting leader with broad services for businesses. Offers accounting, administrative, legal, tax, social, M&A, tourism, wealth, innovation, and legal advice.

Accounting 🇫🇷 Lyon 3,533 1991
31
MHAmha.co.uk

Offers financial and business strategy services to enterprises and individuals, supporting growth, success, and sustainable wealth creation globally.

Accounting 🇬🇧 London 3,439 1880
32
Tax Consultantwearegalloways.com

A traditional general practice with a specialist tax consulting team supporting accountants, solicitors, and financial advisers in providing high-level services to clients

Accounting 🇬🇧 Brighton 3,015 n/a
33
KPMG Irelandkpmg.ie

A leading provider of audit, tax, and advisory services for domestic and international clients across all sectors, specializing in driving value and navigating change

Accounting 🇮🇪 Dublin 2,978 n/a
34
Deloitte Belgiumdeloitte.com

A leading audit and consulting practice in Belgium offering services in audit, accounting, tax, consulting, and financial advisory to national and international clients

Management Consulting 🇧🇪 Zaventem 2,840 1953
35
PwC Switzerlandpwc.ch

Global network of firms providing quality assurance, advisory, and tax services in 157 countries, with a focus on building trust and solving important problems

Professional Services 🇨🇭 Zurich 2,827 1912
36
Sumersumer.co.uk

Championing small to medium UK and Ireland businesses by uniting expert firms to provide collaborative support and growth solutions.

Accounting 🇬🇧 London 2,608 n/a
37
RÖDLroedl.com

Global interdisciplinary partner providing comprehensive legal, tax, management, IT, and audit services to German Mittelstand businesses worldwide with a unique approach

Professional Services 🇩🇪 Nuremberg 2,565 1977
38
BDO Nederlandbdo.nl

This company helps businesses adapt to the new economy by providing global insight, personal service, and professional guidance to make organizations stronger and more successful

Professional Services 🇳🇱 Eindhoven 2,553 n/a
39
Grant Thornton Irelandgrantthornton.ie

Providing innovative financial and business solutions with local expertise and global reach, fostering client relationships and ethical practices.

Professional Services 🇮🇪 Dublin 2,514 n/a
40
PwC Irelandpwc.ie

Global network providing assurance, advisory, and tax services with a commitment to quality and building trust in society.

Professional Services 🇮🇪 Dublin 2,502 n/a
41
Deloitte Deutschlanddeloitte.com

We provide innovative solutions and support sustainable growth for clients, while fostering a culture of excellence, integrity, and community involvement

Management Consulting 🇩🇪 Munich 2,489 1907
42
Deloitte Italiaglickon.com

Deloitte provides professional services in Italy with a focus on audit, tax, consulting, risk, and financial advisory It offers innovative solutions to clients globally

Management Consulting 🇮🇹 Milan 2,481 n/a
43
Grant-Thornton Francegrantthornton.fr

Provides audit, financial advisory, operational consulting, legal and tax advice, and sustainable transformation services to French businesses.

Financial Services 🇫🇷 Neuilly-sur-Seine 2,342 1964
44
PwC Swedenpwc.se

Helping clients build trust and transform operations to enhance competitiveness through tax, audit, and advisory services nationwide.

Business Consulting and Services 🇸🇪 Stockholm 2,333 1969
45
KPMG Switzerlandkpmg.com

Providing audit and advisory services to SMEs and global companies, focusing on practical solutions and long-term client relationships.

Business Consulting and Services 🇨🇭 Zurich 2,298 n/a
46
S&W Irelandswgroup.com

Providing expert tax, accountancy, assurance, and advisory services to support Irish and international businesses through growth, risks, and exits.

Professional Services 🇮🇪 Dublin 2,293 1958
47
Steuerberatersteuerschroeder.de

A freelance tax advisor in Berlin specializing in advising IT freelancers on how to be exempt from trade tax through their services Visit their website for more information

Financial Services 🇩🇪 Berlin 2,257 1996
48
S&Wswgroup.com

Financial and professional services firm specializing in wealth management, accountancy, tax advisory, and investment management solutions.

Professional Services 🇬🇧 London 2,218 1881
49
GROUPE ALPHAgroupe-alpha.com

Expertise and consulting in social relations and local development. Provides employment solutions with social partners and local authorities.

Business Consulting and Services 🇫🇷 Paris 2,165 1983
50
BDO Germanybdo.de

A leading provider of audit, tax, and advisory services with industry-centered expertise, serving medium-sized, family-owned, and listed businesses globally

Accounting 🇩🇪 Hamburg 2,025 1920

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51
KPMG Polandkpmg.com

Global organization providing professional services in audit, tax, finance, legal, and consulting Improving business results, managing risks, creating strategies, and adding value

Business Consulting and Services 🇵🇱 Warsaw 1,989 1990
52
FITECOfiteco.com

Specialists in accounting, tax regulation, administrative tasks, and digital tools for entrepreneurs, agricultural businesses, and companies focused on CSR and future transmissions

Accounting 🇫🇷 Changé 1,937 1967
53
Forvis Mazars in Germanyforvismazars.com

international audit, accountancy, advisory, tax, and legal services with a large professional team across multiple German locations

Accounting 🇩🇪 Hamburg 1,932 1945
54
PwC Portugalpwc.pt

Global network providing quality auditing, consulting, and tax services in 152 countries with over 328,000 employees across various offices Led by experienced Territory Leadership Team

Business Consulting and Services 🇵🇹 Lisbon 1,901 n/a
55
PwC Greecepwc.com

Network of firms delivering quality assurance, advisory, and tax services, committed to building trust in society and solving important problems.

Business Consulting and Services 🇬🇷 Marousi 1,879 n/a
56
RSM Ebner Stolzebnerstolz.de

A leading independent auditing and consulting firm in Germany offering multidisciplinary services such as audit, tax, legal, and business consulting to mid-sized businesses

Professional Services 🇩🇪 Stuttgart 1,878 n/a
57
KPMG Luxembourgkpmg.com

Independent firms providing audit, tax, and advisory services worldwide, operating under a global brand with distinct legal entities.

Financial Services 🇱🇺 Luxembourg 1,863 n/a
58
Flynthflynth.nl

A leading Dutch accounting and advisory service provider focused on entrepreneurs, with a unique organizational structure and passionate, team-oriented employees

Accounting 🇳🇱 Arnhem 1,842 n/a
59
PwC Norwaypwc.no

A leading global professional services firm with deep expertise in auditing, advisory, and legal services, operating in 155 countries worldwide

Business Consulting and Services 🇳🇴 Oslo 1,802 n/a
60
Beierholmbeierholm.dk

auditing and consulting services for small and medium-sized companies, specializing in finance, tax, investment, business development, and sustainability

Accounting 🇩🇰 Aalborg 1,774 n/a
61
PwC Danmarkpwc.dk

Providing audit, tax, and advisory services to businesses and public sector clients, focusing on trust and solving key challenges.

Business Consulting and Services 🇩🇰 Danmark 1,738 n/a
62
KPMG Belgiumkpmg.com

Helping organizations harness data to drive digitalization, manage risk, optimize costs, and stay relevant through technology, innovation, and compliance

Business Consulting and Services 🇧🇪 Zaventem 1,721 n/a
63
Cooper Parrylinktr.ee

This B Corp provides audit, tax, innovation, tech, outsourcing, deals, wealth, sustainability, legal, and digital services to entrepreneurial businesses.

Financial Services 🇬🇧 Uk 1,698 1850
64
AABaabgroup.com

A tech-enabled group providing business critical services including audit, accounting, tax, HR, payroll, financial planning, wealth management, and organizational consulting

Professional Services 🇬🇧 Aberdeen 1,663 1990
65
Deloitte Portugaldeloitte.pt

Global network of professionals providing audit, business consulting, financial advisory, risk management, tax services, across various industries, focusing on client needs and excellence

Management Consulting 🇵🇹 Lisbon 1,654 n/a
66
Grant Thornton Swedengrantthornton.se

Grant Thornton is a leading audit and consulting firm in Sweden, offering services in auditing, accounting, tax, and business growth advisory for entrepreneurs and companies

Business Consulting and Services 🇸🇪 Stockholm 1,619 1950
67
Deloitte Irelanddeloitte.com

Global professional services network delivering solutions and insights to address complex business challenges, with leadership capabilities, experience, and collaboration with clients

Management Consulting 🇮🇪 Dublin 2 1,594 n/a
68
PwC Belgiumpwc.be

Global network committed to solving important problems, building trust, and providing quality assurance, advisory, and tax services in 156 countries

Accounting 🇧🇪 Diegem 1,594 n/a
69
Deloitte Société d'Avocatsavocats.deloitte.fr

Leading French law firm specializing in international tax and legal strategies, supporting CEOs of major businesses with global design and execution.

Law Practice 🇫🇷 Paris La Défense 1,592 2004
70
AIDERaider.no

A leading competence house redefining the accounting industry with a focus on technology and skilled professionals to help leaders succeed

Accounting 🇳🇴 Oslo 1,540 2019
71
BDO Francebdo.fr

Offers audit, financial consulting, and accounting services in France, supporting various business sizes and sectors. Global network presence.

Business Consulting and Services 🇫🇷 Paris 1,526 2007
72
Crowe UKcrowe.com

Providing audit, tax, advisory, and consulting services with deep market knowledge to businesses, nonprofits, pension funds, and private clients.

Accounting 🇬🇧 London 1,518 n/a
73
KPMG Norwaykpmg.com

Providing audit, consulting, legal services with focus on cybersecurity, sustainability, technology, and future-oriented business solutions for clients.

Business Consulting and Services 🇳🇴 Oslo 1,514 n/a
74
KPMG Swedenkpmg.com

Provides audit, tax, and advisory services with a global network of professionals operating in multiple countries including Sweden.

Business Consulting and Services 🇸🇪 Stockholm 1,510 n/a
75
KPMG Portugalkpmg.com

Global professional services firm offering Audit, Tax, and Advisory services in 143 countries, with expertise and innovation to deliver real results

Business Consulting and Services 🇵🇹 Lisbon 1,498 1965
76
Grant Thornton Germanygrantthornton.de

A leading audit firm in Germany with 1,500 employees across 11 locations, helping clients achieve their goals through professional services

Professional Services 🇩🇪 Düsseldorf 1,493 1958
77
BDO Norgebdo.no

This company offers client-focused services with local expertise, delivering professional solutions and creating unique experiences, serving global to small enterprises

Business Consulting and Services 🇳🇴 Oslo 1,471 1913
78
Grant Thornton Greecegrant-thornton.gr

Provides assurance, tax, and advisory services to diverse clients worldwide as part of a global network of independent accounting and consulting firms

Business Consulting and Services 🇬🇷 Athens 1,447 1994
79
Aspiaaspia.se

A partner providing accounting, payroll, HR, advisory, and other business services to small and medium-sized companies through a large team of experts

Business Consulting and Services 🇸🇪 Stockholm 1,420 2018
80
BDO Italiabdo.it

BDO is a multidisciplinary partnership offering integrated professional services to international groups, national SMEs, private investors, and public institutions worldwide

Business Consulting and Services 🇮🇹 Milan 1,403 1965
81
RSM Francersm.global

International network providing audit, accounting, and consulting services through eighteen regional locations with over thirteen hundred employees and ninety partners delivering tailored solutions.

Accounting 🇫🇷 Paris 1,398 n/a
82
CPAaudit-cpa.com

This firm specializes in accounting expertise, providing national coverage and international support for client growth. It has 17 offices and serves 7,000 clients.

Accounting 🇫🇷 Paris 1,384 2005
83
Ludvig & Coludvig.se

Offering Swedish entrepreneurs valuable advice and services in finance, law, and real estate through a combination of local commitment and extensive expertise

Business Consulting and Services 🇸🇪 Stockholm 1,369 1918
84
Moore Kingston Smithmooreks.co.uk

Providing multi-disciplinary advisory, tax, and audit services to diverse clients locally and internationally, fostering positive change and understanding.

Accounting 🇬🇧 London 1,358 n/a
85
Moore Belgiummoore.be

Leading independent accounting and consulting firm in Belgium helping entrepreneurs achieve their goals through a wide range of services including tax, audit, finance, and business consulting

Business Consulting and Services 🇧🇪 Brussels 1,350 n/a
86
Moore DRVmoore-drv.nl

Accountants and advisors supporting entrepreneurs in the real economy with expert insights, solutions, and support for lasting improvements in business performance

Financial Services 🇳🇱 Rotterdam 1,335 1922
87
AMG Biuro Rachunkoweamgbiuro.pl

A family business with extensive experience since 1994, offering financial advice, HR and payroll management, and accounting solutions for a range of clients

Accounting 🇵🇱 Warsaw 1,330 1994
88
Baker Tilly Francebakertilly.fr

Providing global professional services to businesses and governments, helping achieve goals, seize opportunities, and maintain competitiveness worldwide.

Business Consulting and Services 🇫🇷 Angers 1,324 1963
89
Xeinadinxeinadin.com

Providing expert business advice infused with technology and global expertise, Xeinadin Group empowers companies to reach their strategic objectives efficiently

Accounting 🇬🇧 London 1,323 2019
90
Safferysaffery.com

A partner-led top 20 accountancy firm specializing in corporate finance, entrepreneurs, and international clients, committed to long-term relationships and tailored strategies

Accounting 🇬🇧 London 1,322 1855
91
TGS Francetgs-france.fr

A comprehensive consultancy firm offering services in audit, finance, legal, social and business management, personnel and franchise development Committed to building strong client relationships

Business Consulting and Services 🇫🇷 Paris 1,313 1969
92
COGEPcogep.fr

Multidisciplinary consulting firm providing accounting, legal, and financial advisory services through collaborative experts to optimize business performance via two hundred local branches.

Accounting 🇫🇷 Saint-Doulchard 1,286 1971
93
BDO Switzerlandbdo.ch

A leading Swiss audit, accounting, and consulting firm with a strong national network, serving SMEs, listed companies, public authorities, and non-profit organizations

Business Consulting and Services 🇨🇭 Zurich 1,282 n/a
94
EXCOexco.fr

Network of independent accounting and auditing firms. Provides multidisciplinary expertise, local presence, national and international reach, client proximity, and entrepreneurial spirit.

Accounting 🇫🇷 Paris 1,254 2002
95
Deloitte Norwaydeloitte.com

Global network offering audit, consulting, financial advisory, risk, and tax services to public and private clients in various industries worldwide

Management Consulting 🇳🇴 Oslo 1,253 1916
96
KPMG Romaniakpmg.com

Providing audit, tax, and advisory services with deep industry knowledge to help businesses navigate complex and fast-moving environments.

Business Consulting and Services 🇷🇴 Bucharest 1,240 1995
97
TC Grouptc-group.com

Innovative firm of accountants and professional advisers offering a full range of services in financial planning, legal, HR, and technology

Accounting 🇬🇧 Steyning 1,236 1992
98
BDO Danmarkbdo.dk

The company is a Danish-owned and operated advisory firm, part of the global BDO network, providing auditing, accounting, and consulting services to businesses for growth and development

Accounting 🇩🇰 Aarhus 1,227 1903
99
KPMG Austriakpmg.com

Largest Austrian audit and consulting firm with over 2,050 employees, strong regional presence, and global project capabilities.

Business Consulting and Services 🇦🇹 Vienna 1,226 1946
100
Interpathinterpath.com

Providing expertise and creative solutions for critical business decisions, guiding clients towards the right path quickly

Financial Services 🇬🇧 London 1,220 n/a

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 13, 2026.

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