# The 30 largest professional services firms in Geneva Tamtam tracks 44 professional services firms headquartered in Geneva. This list ranks the 30 largest by number of employees on LinkedIn, led by Amaris Consulting, Edmond de Rothschild and dss+. Their median headcount is 144. Half of them were founded in 2003 or later. These Geneva-based professional services firms are mostly large, established companies, with a significant presence in IT services and consulting, financial services, and maritime transportation. Notably, Amaris Consulting, an independent technology consulting firm, employs 7,500 people, while Edmond de Rothschild, an investment house, has 2,961 employees. dss+ provides operations management consulting services, and Merkle DACH specializes in data-driven customer experience management. The data shows a diverse mix of sectors within professional services. Beyond the prominent IT and financial sectors, firms like BRS Shipbrokers and Lightship Chartering highlight Geneva's role in maritime transportation. Many of these companies have a long history, with BRS Shipbrokers founded in 1856 and Edmond de Rothschild in 1953, indicating a strong foundation of traditional services alongside newer digital and IT consulting firms. πŸ‡¨πŸ‡­ Geneva Β· 30 companies Β· Updated Nov 11, 2026 | # | Company | Industry | Headquarters | Employees | Founded | |---|---|---|---|---|---| | 1 | [Amaris Consulting](https://www.tamtam.ai/c/amaris-consulting) (amaris.com)
Independent technology consulting firm providing guidance and solutions to businesses worldwide through a diverse team of experts in various industries Partner of Mantu | IT Services and IT Consulting | πŸ‡¨πŸ‡­ Geneva | 7,500 | 2007 | | 2 | [Edmond de Rothschild](https://www.tamtam.ai/c/edmond-de-rothschild) (edmond-de-rothschild.com)
Investment house focusing on wealth management, emphasizing responsible investment to generate financial, societal, and personal returns for clients. | Financial Services | πŸ‡¨πŸ‡­ Geneva | 2,961 | 1953 | | 3 | [dss+](https://www.tamtam.ai/c/dss-geneva) (consultdss.com)
A leading provider of operations management consulting services focused on saving lives, creating a sustainable future, and enabling organizations to improve operations responsibly | Business Consulting and Services | πŸ‡¨πŸ‡­ Geneva | 2,403 | 1968 | | 4 | [Merkle DACH](https://www.tamtam.ai/c/merkle-dach) (merkle.com)
A leading data-driven customer experience management company specializing in delivering personalized marketing strategies and driving improved results for top companies worldwide | Marketing Services | πŸ‡¨πŸ‡­ Geneva | 1,073 | | | 5 | [UNICC](https://www.tamtam.ai/c/unicc) (unicc.org)
Designs and deploys transformational digital tools and programs, including cybersecurity, data analytics, platform, software, and infrastructure solutions for the UN family and other international organizations. | IT Services and IT Consulting | πŸ‡¨πŸ‡­ Geneva | 581 | 1971 | | 6 | [TeamWork Corporate](https://www.tamtam.ai/c/teamwork-corporate) (teamwork.net)
International consulting group specializing in technology integration, innovation, operational performance improvement, transformation support, and growth for diverse businesses worldwide. | IT Services and IT Consulting | πŸ‡¨πŸ‡­ Geneva | 574 | | | 7 | [BRS Shipbrokers](https://www.tamtam.ai/c/brs-shipbrokers) (brsshipbrokers.com)
Global full-service ship broking firm offering services in shipbroking, carbon markets advisory, freight derivatives, software technology, market intelligence, and maritime consulting | Maritime Transportation | πŸ‡¨πŸ‡­ Geneva | 463 | 1856 | | 8 | [Hotelis](https://www.tamtam.ai/c/hotelis) (hotelis.ch)
Leading Swiss hospitality and catering recruitment agency. Provides temporary and permanent placements, continuous training, and innovative solutions for hotels, public institutions, and independent companies. | Staffing and Recruiting | πŸ‡¨πŸ‡­ Geneva | 462 | 2008 | | 9 | [Forvis Mazars in Switzerland](https://www.tamtam.ai/c/forvis-mazars-in-switzerland) (forvismazars.com)
Integrated partnership providing audit, accountancy, advisory, tax, and legal services in over 100 countries with a global team of 50,000 professionals | Professional Services | πŸ‡¨πŸ‡­ Geneva | 458 | 1975 | | 10 | [Kenes Group](https://www.tamtam.ai/c/kenes-group) (kenes-group.com)
Global provider for medical and scientific meetings through professional congress organization and association management, delivering international expertise with local know-how across four continents. | Events Services | πŸ‡¨πŸ‡­ Geneva | 418 | 1965 | | 11 | [PYTHON](https://www.tamtam.ai/c/python-geneva) (pplex.ch)
This Swiss firm prioritizes high quality, efficiency, and client relationships, offering legal database services and striving for modernity and efficiency | Law Practice | πŸ‡¨πŸ‡­ Geneva | 374 | 1981 | | 12 | [EcoSecurities](https://www.tamtam.ai/c/ecosecurities) (ecosecurities.com)
Develops nature-based solutions, carbon dioxide removals, and energy transition projects, deploying over $1 billion in climate finance and generating 400 million carbon credits. | Environmental Services | πŸ‡¨πŸ‡­ Geneva | 281 | 1997 | | 13 | [Ekkiden](https://www.tamtam.ai/c/ekkiden) (smartlink2.metricool.com)
Consulting firm focused on digital transformation, industrial innovation, and sustainability, supporting team growth and working with major European clients. | IT Services and IT Consulting | πŸ‡¨πŸ‡­ Geneva | 200 | 2019 | | 14 | [Lightship Chartering](https://www.tamtam.ai/c/lightship-chartering) (lightshipchartering.com)
Lightship Chartering is a trusted shipbroking company offering comprehensive services in dry-cargo chartering, providing expert advice and support to clients worldwide | Maritime Transportation | πŸ‡¨πŸ‡­ Geneva | 185 | 1975 | | 15 | [SILEX](https://www.tamtam.ai/c/silex) (silex-partners.com)
Independent investment group supporting wealth managers with tailored investment solutions, combining human insight and advanced quantitative digital tools. | Investment Management | πŸ‡¨πŸ‡­ Geneva | 144 | 2016 | | 16 | [INL](https://www.tamtam.ai/c/inl) (inl-agency.com)
A global communications agency offering a wide range of services for branding, product launches, digital marketing, public relations, and events with personalized approach | Advertising Services | πŸ‡¨πŸ‡­ Geneva | 43 | 2005 | | 17 | [Summit Trust International SA](https://www.tamtam.ai/c/summit-trust-international-sa) (summit-group.com)
Summit Trust specializes in providing administrative services for high-net-worth individuals, family offices, and private trust companies, focusing on multi-generational wealth management | Financial Services | πŸ‡¨πŸ‡­ Geneva | 33 | 1999 | | 18 | [Moore Stephens Refidar SA](https://www.tamtam.ai/c/moore-stephens-refidar-sa) (moore.swiss)
A firm in Geneva, Nyon, and Lausanne offering audit, accounting, business planning, consulting, company setup/liquidation, payroll management, and tax advice services | Financial Services | πŸ‡¨πŸ‡­ Geneva | 31 | 1976 | | 19 | [Anchor Group SA](https://www.tamtam.ai/c/anchor-group-sa) (aii-group.com)
An international investment group offering distribution services for qualified investors in Switzerland, investment banking, private equity/debt investing, and advisory services across Europe and India | Financial Services | πŸ‡¨πŸ‡­ Geneva | 30 | 2007 | | 20 | [Agence Eminence](https://www.tamtam.ai/c/agence-eminence) (eminence.ch)
Specializes in website creation, SEO, SEA, data tracking, user experience, and advertising campaigns to boost business growth internationally. | Advertising Services | πŸ‡¨πŸ‡­ Geneva | 26 | 2009 | | 21 | [Conser](https://www.tamtam.ai/c/conser) (conser.ch)
A Geneva-based firm specializing in responsible investment, providing tools and services to ensure compliance with sustainable development principles through innovative ESG technology | IT Services and IT Consulting | πŸ‡¨πŸ‡­ Geneva | 25 | 2007 | | 22 | [TRIVAL-SERVICES SA](https://www.tamtam.ai/c/trival-services-sa) (trival.ch)
We specialize in team reinforcement and long-term project development, ensuring high-quality service by focusing on skills development and consultant well-being | IT Services and IT Consulting | πŸ‡¨πŸ‡­ Geneva | 25 | | | 23 | [EWM - Branding \| Web Design \| Web Development \| Digital Marketing](https://www.tamtam.ai/c/ewm-branding-web-design-web-development-digital-marketing) (ewm.swiss)
Swiss branding and digital agency offering web design, development, and marketing services for global brands, SMEs, NGOs with tailored solutions | Marketing Services | πŸ‡¨πŸ‡­ Geneva | 22 | 2010 | | 24 | [PRIVALIA](https://www.tamtam.ai/c/privalia-geneve) (privalia-immobilier.ch)
Family-owned property development management, brokerage, valuation, and consultancy company Focused on innovation, tradition, client satisfaction, sustainability, and excellence | Real Estate | πŸ‡¨πŸ‡­ Geneva | 19 | 2011 | | 25 | [Anthesis Switzerland](https://www.tamtam.ai/c/anthesis-switzerland) (anthesisgroup.com)
An international marketing agency in Geneva offering a full range of creative services to help global companies and non-profits engage and captivate audiences worldwide | Environmental Services | πŸ‡¨πŸ‡­ Geneva | 18 | 2007 | | 26 | [BUGNION S.A.](https://www.tamtam.ai/c/bugnion-s-a) (bugnion.ch)
Specialized IP law firm in Geneva and Lausanne, offering services in patents, trademarks, designs, copyright, domain names, image rights, and data protection with a multidisciplinary team | Legal Services | πŸ‡¨πŸ‡­ Geneva | 17 | 1924 | | 27 | [Magnolia Private Office S.A](https://www.tamtam.ai/c/magnolia-private-office-s-a) (magnoliaprivateoffice.com)
A Geneva-based Trust Company offering trustee services regulated by Swiss law, dedicated to preserving and enhancing clients' wealth with long-term vision | Financial Services | πŸ‡¨πŸ‡­ Geneva | 13 | 2019 | | 28 | [Tanit SA - Talents et emplois cybersΓ©curitΓ© - Suisse](https://www.tamtam.ai/c/tanit-sa-talents-et-emplois-cybersecurite-suisse) (tanit-sa.ch)
A company specializing in recruiting cybersecurity professionals to help organizations protect against cyber threats and enhance their security measures | IT Services and IT Consulting | πŸ‡¨πŸ‡­ Geneva | 10 | 2007 | | 29 | [Melcarne SA](https://www.tamtam.ai/c/melcarne-sa) (melcarne.ch)
Real estate consultancy and brokerage specializing in commercial properties, offering sales/purchases, rentals, property management, and portfolio assessment services with ethics and expertise | Real Estate | πŸ‡¨πŸ‡­ Geneva | 9 | 2003 | | 30 | [Qualintra](https://www.tamtam.ai/c/qualintra) (qualintra.com)
For over 20 years, this company specializes in Feedback Intelligence to enhance employee engagement, leadership development, and business excellence in organizations | Business Consulting and Services | πŸ‡¨πŸ‡­ Geneva | 9 | 2000 | ## 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 11, 2026. ## More company lists in Geneva - [The largest companies in Geneva](https://www.tamtam.ai/l/largest-companies-geneva) (649) - [Multinational companies in Geneva](https://www.tamtam.ai/l/multinational-companies-geneva) (210) - [Financial services firms in Geneva](https://www.tamtam.ai/l/financial-services-firms-geneva) (182) - [Financial Services companies in Geneva](https://www.tamtam.ai/l/financial-services-companies-geneva) (108) - [Real Estate companies in Geneva](https://www.tamtam.ai/l/real-estate-companies-geneva) (101) - [Investment Management companies in Geneva](https://www.tamtam.ai/l/investment-management-companies-geneva) (51) - [Critical infrastructure operators in Geneva](https://www.tamtam.ai/l/critical-infrastructure-operators-geneva) (40) - [Companies with in-house R&D in Geneva](https://www.tamtam.ai/l/r-and-d-companies-geneva) (37) - [Property management companies in Geneva](https://www.tamtam.ai/l/property-management-companies-geneva) (36) - [Family-owned companies in Geneva](https://www.tamtam.ai/l/family-owned-companies-geneva) (35) - [IT Services and IT Consulting companies in Geneva](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-geneva) (30) - [Retail chains in Geneva](https://www.tamtam.ai/l/retail-chains-geneva) (29) - [Venture capital and private equity firms in Geneva](https://www.tamtam.ai/l/vc-and-private-equity-firms-geneva) (29) - [Consulting firms in Geneva](https://www.tamtam.ai/l/consulting-firms-geneva) (25) - [Banking companies in Geneva](https://www.tamtam.ai/l/banking-companies-geneva) (25) ## The same list elsewhere in Switzerland - [Professional services firms in Switzerland](https://www.tamtam.ai/l/professional-services-firms-switzerland) (402) - [Professional services firms in Canton of Zurich](https://www.tamtam.ai/l/professional-services-firms-canton-of-zurich) (128) - [Professional services firms in Vaud](https://www.tamtam.ai/l/professional-services-firms-vaud) (68) - [Professional services firms in Canton of Geneva](https://www.tamtam.ai/l/professional-services-firms-canton-of-geneva) (53) - [Professional services firms in Canton of Zug](https://www.tamtam.ai/l/professional-services-firms-canton-of-zug) (28) - [Professional services firms in Zurich](https://www.tamtam.ai/l/professional-services-firms-zurich) (106) --- Source: https://www.tamtam.ai/l/professional-services-firms-geneva