# Top 30 professional services firms in Lisbon Tamtam tracks 55 professional services firms headquartered in Lisbon. This list ranks the 30 largest by number of employees on LinkedIn, led by Accenture Portugal, GMS and PwC Portugal. Their median headcount is 585. Half of them were founded in 1997 or later. These professional services firms in Lisbon are primarily large companies, many of them subsidiaries of global networks, with a strong focus on IT services and human resources. Accenture Portugal, GMS, Aubay Portugal, Link, and Timestamp specialize in IT consulting and technology solutions, while Randstad Portugal, EGOR, Talenter, Clan, RHmais, and Magma Studio provide human resources services, including recruitment, staffing, and talent management. PwC Portugal, Deloitte Portugal, and KPMG Portugal offer broader business consulting, audit, and tax services. A notable pattern is the high concentration of companies in the IT Services and IT Consulting sector, such as Accenture Portugal, GMS, and Link, alongside a significant presence of Human Resources Services firms like Randstad Portugal and EGOR. This indicates a specialized professional services market in Lisbon, catering to technology and talent management needs. πŸ‡΅πŸ‡Ή Lisbon Β· 30 companies Β· Updated Nov 11, 2026 | # | Company | Industry | Headquarters | Employees | Founded | |---|---|---|---|---|---| | 1 | [Accenture Portugal](https://www.tamtam.ai/c/accenture-portugal) (accenture.com)
A global professional services company focusing on digital innovation, optimizing operations, driving revenue growth, and enhancing citizen services for organizations worldwide | IT Services and IT Consulting | πŸ‡΅πŸ‡Ή Lisbon | 2,316 | 1990 | | 2 | [GMS](https://www.tamtam.ai/c/gms) (maksen.com)
Provides strategic, business, and IT consulting, technology solutions, engineering services, and outsourcing for various business needs and operations. | IT Services and IT Consulting | πŸ‡΅πŸ‡Ή Lisbon | 2,105 | 2003 | | 3 | [PwC Portugal](https://www.tamtam.ai/c/pwc-portugal) (pwc.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 | πŸ‡΅πŸ‡Ή Lisbon | 1,901 | | | 4 | [Deloitte Portugal](https://www.tamtam.ai/c/deloitte-portugal) (deloitte.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 | πŸ‡΅πŸ‡Ή Lisbon | 1,654 | | | 5 | [KPMG Portugal](https://www.tamtam.ai/c/kpmg-portugal) (kpmg.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 | πŸ‡΅πŸ‡Ή Lisbon | 1,498 | 1965 | | 6 | [Randstad Portugal](https://www.tamtam.ai/c/randstad-portugal) (randstad.pt)
Global human resources leader managing daily operations for thirty thousand workers across Portugal through local branches, contact centers, and specialized inhouse recruitment locations. | Human Resources Services | πŸ‡΅πŸ‡Ή Lisbon | 1,165 | 1960 | | 7 | [Aubay Portugal](https://www.tamtam.ai/c/aubay-portugal) (aubay.pt)
Aubay provides technology consulting and modernization services with innovation at its core, offering customized solutions for IT needs and resource management | IT Services and IT Consulting | πŸ‡΅πŸ‡Ή Lisbon | 784 | 2007 | | 8 | [EGOR](https://www.tamtam.ai/c/egor) (egor.pt)
Specialized HR management group with over 30 years of experience offering consulting, training, recruitment, outsourcing, and temporary work services with a focus on ethics and excellence | Human Resources Services | πŸ‡΅πŸ‡Ή Lisbon | 767 | 1986 | | 9 | [Link](https://www.tamtam.ai/c/link-lisboa) (linkconsulting.com)
Provider of technology solutions for various industries globally, with a focus on Information and Communication Technologies, serving national and international clients | IT Services and IT Consulting | πŸ‡΅πŸ‡Ή Lisbon | 761 | 1998 | | 10 | [Talenter](https://www.tamtam.ai/c/talenter) (talenter.com)
Specializing in connecting people's talents with the job market needs, the company aims to empower individuals and support businesses in talent discovery and development | Human Resources Services | πŸ‡΅πŸ‡Ή Lisbon | 734 | 1999 | | 11 | [Timestamp](https://www.tamtam.ai/c/timestamp) (timestampgroup.com)
Specialized technology integrator, developing integrated systems for organizations worldwide Leading Oracle solutions provider in Iberia, with expertise in complex, scalable projects since 2003 | IT Services and IT Consulting | πŸ‡΅πŸ‡Ή Lisbon | 730 | 2003 | | 12 | [Clan](https://www.tamtam.ai/c/clan) (clan.pt)
The first 100% digital employment solution for candidates and employees, created by Multipessoal Join us at clanpt | Human Resources Services | πŸ‡΅πŸ‡Ή Lisbon | 681 | 1993 | | 13 | [RHmais](https://www.tamtam.ai/c/rhmais) (rhmais.pt)
A Portuguese company founded in 1987, providing Human Resources services to major Portuguese companies, state entities, and SMEs Awarded for employee satisfaction | Human Resources Services | πŸ‡΅πŸ‡Ή Lisbon | 679 | 1987 | | 14 | [Magma Studio](https://www.tamtam.ai/c/magma-studio) (magmastudio.pt)
A boutique specializing in employer branding, assisting large organizations in defining talent management strategies and initiatives Passionate about education, offering career accelerators and training programs | Staffing and Recruiting | πŸ‡΅πŸ‡Ή Lisbon | 646 | | | 15 | [Companhia PrΓ³pria](https://www.tamtam.ai/c/companhia-propria) (companhiapropria.pt)
The company aims to enhance knowledge and skills for individuals and organizations through innovative solutions and education projects in Portuguese-speaking markets | Business Consulting and Services | πŸ‡΅πŸ‡Ή Lisbon | 585 | 1997 | | 16 | [VdA Vieira de Almeida](https://www.tamtam.ai/c/vda-vieira-de-almeida) (vda.pt)
Leader in corporate legal services with over 40 years of international experience, offering specialized solutions in multiple industries and practice areas | Law Practice | πŸ‡΅πŸ‡Ή Lisbon | 572 | | | 17 | [Adecco Permanent Recruitment](https://www.tamtam.ai/c/adecco-permanent-recruitment) (adecco.com)
Adecco Specialized Recruitment connects top talent with companies through strategic, efficient, and rigorous recruitment processes in various specialized sectors | Human Resources Services | πŸ‡΅πŸ‡Ή Lisbon | 521 | 2017 | | 18 | [Softinsa](https://www.tamtam.ai/c/softinsa) (softinsa.pt)
A specialized company with 22 years of experience in application and infrastructure management, development services, and a team of over 1000 professionals | IT Services and IT Consulting | πŸ‡΅πŸ‡Ή Lisbon | 517 | 1998 | | 19 | [Neyond](https://www.tamtam.ai/c/neyond) (neyond.pt)
Established in 2004, Neyond provides business and IT consulting services, strategic business process outsourcing in various areas, and serves national and multinational clients globally | Business Consulting and Services | πŸ‡΅πŸ‡Ή Lisbon | 509 | 2004 | | 20 | [Neotalent Conclusion](https://www.tamtam.ai/c/neotalent-conclusion) (neotalentconclusion.com)
A leading Iberian specialist in IT and engineering services, focused on digital transformation through specialized talent for ambitious projects | IT Services and IT Consulting | πŸ‡΅πŸ‡Ή Lisbon | 496 | 1998 | | 21 | [PLMJ](https://www.tamtam.ai/c/plmj) (plmj.com)
Portugal's largest law organization with extensive global reach and specialized teams providing high-quality legal services across various industries and countries | Law Practice | πŸ‡΅πŸ‡Ή Lisbon | 486 | 1967 | | 22 | [Abreu Advogados](https://www.tamtam.ai/c/abreu-advogados) (abreuadvogados.com)
Innovative and diverse team breaking barriers by fostering transparent conversations, matching specialists to clients' needs, and staying ahead through innovation | Law Practice | πŸ‡΅πŸ‡Ή Lisbon | 470 | 1993 | | 23 | [Geocontrole](https://www.tamtam.ai/c/geocontrole) (geocontrole.com)
A leading geotechnical player in Portugal offering ground investigation, laboratory testing, consultancy services, and exclusive technologies in the market | Civil Engineering | πŸ‡΅πŸ‡Ή Lisbon | 462 | 1975 | | 24 | [Grupo Conceito](https://www.tamtam.ai/c/grupo-conceito-lisbon) (conceito.pt)
This organization provides outsourcing services in accounting, taxes, consultancy, payroll, treasury, and management support, with global reach and solid client relationships | Outsourcing and Offshoring Consulting | πŸ‡΅πŸ‡Ή Lisbon | 442 | 1982 | | 25 | [COBA - Engineering and Environmental Consultants](https://www.tamtam.ai/c/coba-engineering-and-environmental-consultants) (cobagroup.com)
Multinational engineering and environmental consultants. Provides engineering consultancy services, project management, and supervision globally since 1962. | Engineering Services | πŸ‡΅πŸ‡Ή Lisbon | 432 | 1962 | | 26 | [Affinity](https://www.tamtam.ai/c/affinity-lisboa) (affinity.pt)
Consulting company providing IT outsourcing, nearshoring services, and HR-oriented product development with a global presence and community focus. | IT Services and IT Consulting | πŸ‡΅πŸ‡Ή Lisbon | 425 | 2012 | | 27 | [InnoWave](https://www.tamtam.ai/c/innowave) (innowave.tech)
A global technology and consulting company focused on disrupting digital experiences, accelerating enterprise transformation, and optimizing application development & operations to change lives through innovation | IT Services and IT Consulting | πŸ‡΅πŸ‡Ή Lisbon | 416 | 2008 | | 28 | [Decskill](https://www.tamtam.ai/c/decskill) (decskill.com)
Provides technology solutions, specializing in nearshoring, software development, quality assurance, data analytics, cloud, DevOps, and AI to empower digital transformation. | IT Services and IT Consulting | πŸ‡΅πŸ‡Ή Lisbon | 416 | | | 29 | [INTERPREV](https://www.tamtam.ai/c/interprev) (interprev.pt)
A Portuguese company specializing in professional, food, and environmental risk prevention through services such as workplace safety, food safety, training, and pest control | Hospitals and Health Care | πŸ‡΅πŸ‡Ή Lisbon | 401 | 2004 | | 30 | [TPF - CONSULTORES DE ENGENHARIA E ARQUITETURA, S.A.](https://www.tamtam.ai/c/tpf-consultores-de-engenharia-e-arquitetura-s-a) (tpf.pt)
Providing fully integrated Engineering and Architectural services, certified and recognized for quality, focusing on sustainable projects in various sectors | Engineering Services | πŸ‡΅πŸ‡Ή Lisbon | 396 | 1980 | ## 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 Lisbon - [The largest companies in Lisbon](https://www.tamtam.ai/l/largest-companies-lisbon) (648) - [Multinational companies in Lisbon](https://www.tamtam.ai/l/multinational-companies-lisbon) (156) - [Critical infrastructure operators in Lisbon](https://www.tamtam.ai/l/critical-infrastructure-operators-lisbon) (79) - [Public sector organisations in Lisbon](https://www.tamtam.ai/l/public-sector-organisations-lisbon) (75) - [IT services companies in Lisbon](https://www.tamtam.ai/l/it-services-companies-lisbon) (71) - [Financial services firms in Lisbon](https://www.tamtam.ai/l/financial-services-firms-lisbon) (67) - [Retail chains in Lisbon](https://www.tamtam.ai/l/retail-chains-lisbon) (63) - [IT Services and IT Consulting companies in Lisbon](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-lisbon) (62) - [Education providers in Lisbon](https://www.tamtam.ai/l/education-companies-lisbon) (51) - [Consulting firms in Lisbon](https://www.tamtam.ai/l/consulting-firms-lisbon) (46) - [Companies with a mobile app in Lisbon](https://www.tamtam.ai/l/companies-with-mobile-app-lisbon) (46) - [Higher Education companies in Lisbon](https://www.tamtam.ai/l/higher-education-companies-lisbon) (38) - [Software Development companies in Lisbon](https://www.tamtam.ai/l/software-development-companies-lisbon) (38) - [Companies with in-house R&D in Lisbon](https://www.tamtam.ai/l/r-and-d-companies-lisbon) (35) - [Corporate groups and holding companies in Lisbon](https://www.tamtam.ai/l/holding-companies-lisbon) (31) - [Healthcare providers in Lisbon](https://www.tamtam.ai/l/healthcare-providers-lisbon) (28) - [Research institutes in Lisbon](https://www.tamtam.ai/l/research-institutes-lisbon) (28) - [Government Administration companies in Lisbon](https://www.tamtam.ai/l/government-administration-companies-lisbon) (27) - [Hotel and hospitality groups in Lisbon](https://www.tamtam.ai/l/hospitality-groups-lisbon) (26) - [Venture capital and private equity firms in Lisbon](https://www.tamtam.ai/l/vc-and-private-equity-firms-lisbon) (25) ## The same list elsewhere in Portugal - [Professional services firms in Portugal](https://www.tamtam.ai/l/professional-services-firms-portugal) (91) --- Source: https://www.tamtam.ai/l/professional-services-firms-lisbon