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Professional services firms headquartered in Zurich

Tamtam tracks 106 professional services firms headquartered in Zurich. This list ranks the 30 largest by number of employees on LinkedIn, led by Adecco, The Adecco Group and Egon Zehnder. Their median headcount is 665. Half of them were founded in 1983 or later.

🇨🇭 Zurich30 companiesUpdated Nov 12, 2026

This list features large professional services firms in Zurich, predominantly in financial services and business consulting. Noteworthy companies include Adecco, a top provider of HR solutions, and PwC Switzerland, which offers assurance, advisory, and tax services. Vontobel helps clients invest their financial capital.

The data shows a concentration of established firms, with several founded in the early to mid-20th century, such as PwC Switzerland (1912) and Vontobel (1924). The largest companies, like Adecco and The Adecco Group, highlight Zurich's role in global human resources services.

#CompanyIndustryHeadquarters EmployeesFounded
1
Adeccoadecco.com

Top provider of HR solutions matching talented individuals with job opportunities worldwide, offering industry insight, training, and mentoring for career development

Staffing and Recruiting 🇨🇭 Zurich 199,071 n/a
2
The Adecco Groupadeccogroup.com

Global talent company providing employability, digital and engineering solutions, and workforce optimization across multiple industries and countries.

Human Resources Services 🇨🇭 Zurich 19,418 n/a
3
Egon Zehnderegonzehnder.com

A global leadership advisory firm with consultants from diverse industries and functions, dedicated to transforming individuals, organizations, and the world through leadership

Business Consulting and Services 🇨🇭 Zurich 3,346 1964
4
Modismodis.com

Engineering and digital experts accelerate innovation and digital transformation by providing end-to-end solutions, talents, and academy services across various technology sectors.

IT Services and IT Consulting 🇨🇭 Zurich 3,274 n/a
5
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
6
Vontobelvontobel.com

Vontobel helps individuals and institutions invest their financial capital by offering a range of solutions and wealth planning services worldwide

Financial Services 🇨🇭 Zurich 2,533 1924
7
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
8
GAM Investmentsgam.com

Independent asset management firm specializing in active investment strategies, managing diverse client assets globally with experienced professionals and innovative products.

Financial Services 🇨🇭 Zurich 1,716 1983
9
Eraneoseraneos.com

A management & technology consultancy helping organizations navigate and leverage the digital age to stay ahead and seize opportunities

Business Consulting and Services 🇨🇭 Zurich 1,378 1992
10
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
11
VZ VermögensZentrumvermoegenszentrum.ch

Switzerland’s top financial service provider offering expertise in retirement planning, investments, insurance, estate planning, tax optimization, and financial management for individuals and businesses

Financial Services 🇨🇭 Zurich 1,157 1993
12
Cognizant Netcentricnetcentric.biz

End-to-end digital partner specializing in transforming brand experiences, enhancing customer engagement with Adobe Experience Cloud

IT Services and IT Consulting 🇨🇭 Zurich 729 2012
13
EBP Globalebp.global

Providing interdisciplinary consulting and engineering services focused on sustainable development, urban planning, infrastructure, IT, and socio-economic analysis worldwide.

Business Consulting and Services 🇨🇭 Zurich 717 n/a
14
South Polesouthpole.com

Global carbon asset developer and climate consultancy advising governments and businesses on decarbonisation and climate finance projects worldwide.

Environmental Services 🇨🇭 Zurich 705 2006
15
Amstein+Walthertamstein-walthert.ch

Leading Swiss building technology company providing sustainable, efficient engineering, consulting, and project management services across building lifecycles for diverse clients.

Construction 🇨🇭 Zurich 665 1927

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16
Spring Professionallhh.com

An international recruitment firm specializing in various industries, providing tailored staffing solutions for clients globally, from entry-level to senior executive roles

Staffing and Recruiting 🇨🇭 Zurich 650 n/a
17
MERAorioninc.com

A global business and technology services firm specializing in digital strategy, experience design, and engineering with over 4,000 associates worldwide

IT Services and IT Consulting 🇨🇭 Zurich 620 n/a
18
Unicunic.com

The company specializes in making digital solutions user-friendly by combining technology and user needs They focus on innovation, collaboration, and measurable results for various clients

IT Services and IT Consulting 🇨🇭 Zurich 542 1996
19
Careanesthcareanesth.com

Specialized job placement agency in the Swiss healthcare sector, connecting job seekers and employers in medical professions since 1999 Focus on nursing, midwifery, radiology, and anesthesiology

Staffing and Recruiting 🇨🇭 Zurich 533 1999
20
ti&mti8m.com

A Swiss company specializing in digitalization, security, and innovation projects, integrating value creation for clients in Europe and Asia

IT Services and IT Consulting 🇨🇭 Zurich 521 2005
21
EBP Schweizebp.ch

Providing independent consulting, planning, and construction services focused on sustainable development and innovative solutions for complex environmental challenges.

Business Consulting and Services 🇨🇭 Zurich 493 1981
22
Lenz & Staehelinlenzstaehelin.com

Specializes in Swiss business law, partnering globally to provide expert legal advice and representation for domestic and international clients.

Law Practice 🇨🇭 Zurich 456 n/a
23
Walder Wyss Ltd.walderwyss.com

Swiss law firm specializing in corporate, banking, intellectual property, dispute resolution, and tax law Offers personalized legal and tax advisory services nationally and internationally

Law Practice 🇨🇭 Zurich 455 1972
24
KESSLERkessler.ch

Leading Swiss enterprise specializing in risk, insurance, and pension fund consulting for over 1,000 Swiss companies, providing expertise, quality service, and long-term client success

Business Consulting and Services 🇨🇭 Zurich 420 1915
25
Helbling Technikhelbling.ch

A leader in tech innovation & business consulting, supporting international clients in product development & business processes through high-performance teams & modern engineering tools

Engineering Services 🇨🇭 Zurich 374 1963
26
Bär & Karrerbaerkarrer.ch

Advising clients on complex transactions, litigation, arbitration, and regulatory matters with offices across major Swiss cities.

Law Practice 🇨🇭 Zurich 370 1969
27
Wüest Partnerwuestpartner.com

Independent service provider in real estate, offering expertise, data, and digital solutions for decision-making, new perspectives, and sustainable value creation.

Real Estate 🇨🇭 Zurich 336 1985
28
Randstad Switzerlandrandstad.ch

Specialized staffing, recruitment, and HR solutions for temporary, permanent, and executive roles, including innovative tech tools and inhouse services.

Staffing and Recruiting 🇨🇭 Zurich 328 1960
29
Milan Rohrer Studiomilanrohrer.com

Swiss industrial design studio specializing in technical product design and transportation design services

Design Services 🇨🇭 Zurich 327 2015
30
Sixsentixsixsentix.com

A leading provider of Software Testing Services with Visual Analytics and Reporting, helping enterprises accelerate their Software Delivery for faster time-to-market

IT Services and IT Consulting 🇨🇭 Zurich 276 2013

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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 12, 2026.

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