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.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Adeccoadecco.com
Top provider of HR solutions matching talented individuals with job opportunities worldwide, offering industry insight, training, and mentoring for career development |
199,071 | |||
| 2 |
The Adecco Groupadeccogroup.com
Global talent company providing employability, digital and engineering solutions, and workforce optimization across multiple industries and countries. |
19,418 | |||
| 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 |
3,346 | |||
| 4 | 3,274 | ||||
| 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 |
2,827 | |||
| 6 |
Vontobelvontobel.com
Vontobel helps individuals and institutions invest their financial capital by offering a range of solutions and wealth planning services worldwide |
2,533 | |||
| 7 |
KPMG Switzerlandkpmg.com
Providing audit and advisory services to SMEs and global companies, focusing on practical solutions and long-term client relationships. |
2,298 | |||
| 8 |
GAM Investmentsgam.com
Independent asset management firm specializing in active investment strategies, managing diverse client assets globally with experienced professionals and innovative products. |
1,716 | |||
| 9 |
Eraneoseraneos.com
A management & technology consultancy helping organizations navigate and leverage the digital age to stay ahead and seize opportunities |
1,378 | |||
| 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 |
1,282 | |||
| 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 |
1,157 | |||
| 12 |
Cognizant Netcentricnetcentric.biz
End-to-end digital partner specializing in transforming brand experiences, enhancing customer engagement with Adobe Experience Cloud |
729 | |||
| 13 |
EBP Globalebp.global
Providing interdisciplinary consulting and engineering services focused on sustainable development, urban planning, infrastructure, IT, and socio-economic analysis worldwide. |
717 | |||
| 14 |
South Polesouthpole.com
Global carbon asset developer and climate consultancy advising governments and businesses on decarbonisation and climate finance projects worldwide. |
705 | |||
| 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. |
665 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 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 |
650 | |||
| 17 |
MERAorioninc.com
A global business and technology services firm specializing in digital strategy, experience design, and engineering with over 4,000 associates worldwide |
620 | |||
| 18 | 542 | ||||
| 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 |
533 | |||
| 20 | 521 | ||||
| 21 |
EBP Schweizebp.ch
Providing independent consulting, planning, and construction services focused on sustainable development and innovative solutions for complex environmental challenges. |
493 | |||
| 22 |
Lenz & Staehelinlenzstaehelin.com
Specializes in Swiss business law, partnering globally to provide expert legal advice and representation for domestic and international clients. |
456 | |||
| 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 |
455 | |||
| 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 |
420 | |||
| 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 |
374 | |||
| 26 |
Bär & Karrerbaerkarrer.ch
Advising clients on complex transactions, litigation, arbitration, and regulatory matters with offices across major Swiss cities. |
370 | |||
| 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. |
336 | |||
| 28 |
Randstad Switzerlandrandstad.ch
Specialized staffing, recruitment, and HR solutions for temporary, permanent, and executive roles, including innovative tech tools and inhouse services. |
328 | |||
| 29 |
Milan Rohrer Studiomilanrohrer.com
Swiss industrial design studio specializing in technical product design and transportation design services |
327 | |||
| 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 |
276 | |||
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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.
More company lists in Zurich
- The largest companies in Zurich 1,143
- Multinational companies in Zurich 277
- Financial services firms in Zurich 243
- Financial Services companies in Zurich 174
- Real Estate companies in Zurich 140
- SaaS companies in Zurich 122
- Software Development companies in Zurich 96
- IT Services and IT Consulting companies in Zurich 94
- Companies with in-house R&D in Zurich 91
- Consulting firms in Zurich 77
- Investment Management companies in Zurich 63
- IT services companies in Zurich 62
- Critical infrastructure operators in Zurich 56
- Publicly traded companies in Zurich 51
- Advertising Services companies in Zurich 50
- Retail chains in Zurich 46
- Companies with a mobile app in Zurich 42
- Property management companies in Zurich 41
- AI companies in Zurich 36
- Education providers in Zurich 35
- Manufacturers in Zurich 35
- Venture capital and private equity firms in Zurich 35
- AI-native companies in Zurich 33
- Subscription businesses in Zurich 32
The same list elsewhere in Switzerland
- Professional services firms in Switzerland 402
- Professional services firms in Canton of Zurich 128
- Professional services firms in Vaud 68
- Professional services firms in Canton of Geneva 53
- Professional services firms in Canton of Zug 28
- Professional services firms in Geneva 44