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50 leading professional services firms in Portugal

Tamtam tracks 91 professional services firms headquartered in Portugal. This list ranks the 50 largest by number of employees on LinkedIn, led by Escritório de Advocacia, Accenture Portugal and GMS. Their median headcount is 572. Half of them were founded in 1998 or later. The most common headquarters are Lisbon (32), Porto (4) and Matosinhos (2).

🇵🇹 Portugal50 companiesUpdated Nov 12, 2026

These professional services firms in Portugal are primarily large organizations, many with a global presence. They offer a broad spectrum of services, including IT consulting, business advisory, and legal counsel. Noteworthy companies include Accenture Portugal, a global professional services company focused on digital innovation, and Critical Software, which engineers transformative technologies across various sectors.

The companies listed show a strong concentration of headquarters in Lisbon, indicating the capital city's role as a central hub for professional services. Other significant locations include Montijo, Coimbra, and Oeiras. The founding dates suggest a mix of long-established firms like KPMG Portugal, founded in 1965, and more recent entrants such as + Vendas, founded in 2019.

#CompanyIndustryHeadquarters EmployeesFounded
1
Escritório de Advocaciabcadvogados.pt

Law office providing legal counsel and business advisory services

Legal Services 🇵🇹 Montijo 3,641 2011
2
Accenture Portugalaccenture.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 🇵🇹 Lisbon 2,316 1990
3
GMSmaksen.com

Provides strategic, business, and IT consulting, technology solutions, engineering services, and outsourcing for various business needs and operations.

IT Services and IT Consulting 🇵🇹 Lisbon 2,105 2003
4
+ Vendasmaisvendas.pt

A +Vendas offers professional solutions for critical business areas, specializing in sales impact through commercial and marketing, HR training, organizational management, and investment projects

Business Consulting and Services 🇵🇹 Leiria 1,975 2019
5
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
6
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
7
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
8
Critical Softwarecriticalsoftware.com

This company engineers transformative technologies in aerospace, transport, energy, healthcare, and finance, with a focus on sustainability and social impact

IT Services and IT Consulting 🇵🇹 Coimbra 1,355 1998
9
ISQisq.pt

Delivers integrated, innovative solutions supporting customers in risk reduction, operational efficiency improvement, and competitiveness increase through engineering, inspection, tests, and training.

Research Services 🇵🇹 Oeiras 1,190 1965
10
Randstad Portugalrandstad.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 🇵🇹 Lisbon 1,165 1960
11
Grupo Rumosrumos.pt

A business group specializing in training, professional certification, HR and IT services, and education in Portugal, Spain, Angola, and Mozambique

IT Services and IT Consulting 🇵🇹 Lisboa (Lisbon 1,161 1992
12
B2Bb2b.com.pt

This B2B company offers expertise in critical areas such as IT, accounting, human capital management, credit control, and payment management to help businesses thrive

Business Consulting and Services 🇵🇹 Amadora 1,124 n/a
13
Mecwidemecwide.com

A leading provider of specialized construction and maintenance services for the Metalworking Industry Sector, with a focus on innovation, quality, and safety

Engineering Services 🇵🇹 Barcelos 918 2009
14
Aubay Portugalaubay.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 🇵🇹 Lisbon 784 2007
15
EGORegor.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 🇵🇹 Lisbon 767 1986
16
Linklinkconsulting.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 🇵🇹 Lisbon 761 1998
17
Talentertalenter.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 🇵🇹 Lisbon 734 1999
18
Timestamptimestampgroup.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 🇵🇹 Lisbon 730 2003
19
Quadrantequadranteglobal.com

Global engineering and architecture consultancy group providing high value services in various sectors worldwide, emphasizing trust, design, delivery, and added value to clients

Design Services 🇵🇹 Alfragide 715 1998
20
Clanclan.pt

The first 100% digital employment solution for candidates and employees, created by Multipessoal Join us at clanpt

Human Resources Services 🇵🇹 Lisbon 681 1993
21
RHmaisrhmais.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 🇵🇹 Lisbon 679 1987
22
Magma Studiomagmastudio.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 🇵🇹 Lisbon 646 n/a
23
Companhia Própriacompanhiapropria.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 🇵🇹 Lisbon 585 1997
24
afaplanafaplan.com

An experienced group providing management and engineering solutions for construction projects across 4 continents, with offices in Portugal, Brazil, Mozambique, and Angola

Civil Engineering 🇵🇹 Vila Nova de Gaia 579 1985
25
VdA Vieira de Almeidavda.pt

Leader in corporate legal services with over 40 years of international experience, offering specialized solutions in multiple industries and practice areas

Law Practice 🇵🇹 Lisbon 572 n/a

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26
CEiiA // Centre of Engineering and Product Developmentceiia.com

An Engineering and Product Development Center in Portugal creating sustainable technologies and products through collaboration with cities, industry, and universities

Research Services 🇵🇹 Matosinhos 564 1999
27
Adecco Permanent Recruitmentadecco.com

Adecco Specialized Recruitment connects top talent with companies through strategic, efficient, and rigorous recruitment processes in various specialized sectors

Human Resources Services 🇵🇹 Lisbon 521 2017
28
INEGI driving science & innovationinegi.pt

Organisation devoted to carry out research and technology-based innovation activities, technology transfer, consulting and technological services.

Research Services 🇵🇹 Porto 520 1986
29
Mindera - Portugalmindera.com

A global software engineering company that creates web and mobile applications with a focus on collaboration, self-organization, and delivering high-performance solutions for clients worldwide

Software Development 🇵🇹 Porto 519 2014
30
Softinsasoftinsa.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 🇵🇹 Lisbon 517 1998
31
Neyondneyond.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 🇵🇹 Lisbon 509 2004
32
Neotalent Conclusionneotalentconclusion.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 🇵🇹 Lisbon 496 1998
33
PLMJplmj.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 🇵🇹 Lisbon 486 1967
34
Vincitvincit.com

Global experts driving businesses forward through digital technology Award-winning workplace Listed on Nasdaq Focus on practical solutions for success

IT Services and IT Consulting 🇵🇹 Finland | USA | Sweden | Poland | Portugal 470 2007
35
Abreu Advogadosabreuadvogados.com

Innovative and diverse team breaking barriers by fostering transparent conversations, matching specialists to clients' needs, and staying ahead through innovation

Law Practice 🇵🇹 Lisbon 470 1993
36
Geocontrolegeocontrole.com

A leading geotechnical player in Portugal offering ground investigation, laboratory testing, consultancy services, and exclusive technologies in the market

Civil Engineering 🇵🇹 Lisbon 462 1975
37
Grupo Conceitoconceito.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 🇵🇹 Lisbon 442 1982
38
COBA - Engineering and Environmental Consultantscobagroup.com

Multinational engineering and environmental consultants. Provides engineering consultancy services, project management, and supervision globally since 1962.

Engineering Services 🇵🇹 Lisbon 432 1962
39
Affinityaffinity.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 🇵🇹 Lisbon 425 2012
40
Algartempo, Empresa de Trabalho Temporário, Ldaalgartempo.pt

A human resources company connecting competent professionals with clients since 1998 Specializing in recruiting, selecting, and matching candidates to client needs for high-quality service

Human Resources Services 🇵🇹 Quarteira 419 1998
41
InnoWaveinnowave.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 🇵🇹 Lisbon 416 2008
42
Decskilldecskill.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 🇵🇹 Lisbon 416 n/a
43
IEP - Instituto Electrotécnico Portuguêsiep.pt

Established in 1981, the company provides innovative and high-quality technological solutions in areas such as inspection, auditing, training, and consulting across various sectors

Business Consulting and Services 🇵🇹 Matosinhos 409 1981
44
TELLEStelles.pt

Portuguese law experts providing high-quality legal advice to a diverse range of clients, focusing on delivering simple and effective solutions

Legal Services 🇵🇹 Porto 409 1936
45
CONKORDconkord.com

A Lisbon-based IT consultancy focused on excellence and knowledge, hiring individuals who love learning, technology, and helping businesses grow

IT Services and IT Consulting 🇵🇹 Porto 408 2015
46
INTERPREVinterprev.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 🇵🇹 Lisbon 401 2004
47
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 🇵🇹 Lisbon 396 1980
48
Sinficsinfic.com

The company provides IT, management, and quality services to enhance the competitiveness of organizations in Portuguese and Spanish-speaking countries through positive partnerships and client-focused solutions

IT Services and IT Consulting 🇵🇹 Amadora 380 1990
49
Closer Consultingcloser.pt

A data science company specializing in business intelligence, advanced analytics, and artificial intelligence, with expertise across various industries and a commitment to research and development

IT Services and IT Consulting 🇵🇹 Lisbon 380 2006
50
VILTvilt-group.com

Specializing in digital transformation, our focus is on improving customer experiences and operational efficiency globally through digital solutions, data integration, and advanced analytics

IT Services and IT Consulting 🇵🇹 Lisbon 375 2002

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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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