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The 30 largest professional services firms in Buenos Aires

Tamtam tracks 40 professional services firms headquartered in Buenos Aires. This list ranks the 30 largest by number of employees on LinkedIn, led by JOB, Escribanía AC and Grupo Gestión. Their median headcount is 598. Half of them were founded in 1994 or later.

🇦🇷 Buenos Aires30 companiesUpdated Nov 11, 2026

These professional services firms in Buenos Aires include large established groups and mid-sized companies, with a strong presence in accounting, IT, and legal services. JOB, a communication and services agency, is the largest on this list. Other prominent firms include KPMG Argentina, specializing in audit and advisory, Grupo Gestión, focused on comprehensive HR services, and Escribanía AC, which provides nationwide legal services. Deloitte Argentina also offers a wide range of consulting and advisory services.

The data shows a concentration of companies founded in the mid-1990s and early 2000s, suggesting a period of growth and establishment for professional services in the city. The firms listed primarily have their headquarters in Buenos Aires, serving both local and international clients.

#CompanyIndustryHeadquarters EmployeesFounded
1
JOBsomosjob.ar

A communication and services agency providing creative solutions to consumer goods marketing teams Expert team with offices in Argentina and Uruguay

Advertising Services 🇦🇷 Buenos Aires 15,492 1977
2
Escribanía ACescribania-ac.com.ar

A team of specialists providing nationwide legal services through a network of notaries, lawyers, and administrative staff, offering comprehensive advice to clients

Legal Services 🇦🇷 Buenos Aires 2,451 1996
3
Grupo Gestióngrupo-gestion.com.ar

Provides comprehensive human resources services including temporary staff, recruitment, consulting, logistics, and agribusiness support to companies across the country.

Human Resources Services 🇦🇷 Buenos Aires 2,383 1997
4
KPMG Argentinakpmg.com.ar

A professional services firm specializing in Audit, Tax, Legal, and Advisory, helping clients overcome complexity and challenges in Argentina and worldwide

Accounting 🇦🇷 Buenos Aires 1,586 1987
5
Estudio Contable GPestudiocontablegp.com.ar

Comprehensive tax and accounting firm providing services to various entities, including sole proprietors, corporations, non-profits, foundations, trusts, and construction companies

Accounting 🇦🇷 Buenos Aires 1,307 2014
6
Estudio Contable OYSSecontable.com.ar

Specialized in providing comprehensive assistance to small and medium-sized entrepreneurs through a multidisciplinary network of professionals in accounting, taxation, legal, audit, finance, and HR

Accounting 🇦🇷 Buenos Aires 1,243 n/a
7
Deloitte Argentinadeloitte.com

A leading international consultancy with offices in Argentina, offering services in audit, consulting, financial advisory, risk advisory, tax, and legal to local and multinational companies

Management Consulting 🇦🇷 Buenos Aires 1,016 n/a
8
IT Patagoniaitpatagonia.com

We are a B-certified technology company focused on sustainable development through technology and education, providing strategic and scalable solutions for organizations 🚀🌎💻📚😎🥇

IT Services and IT Consulting 🇦🇷 Buenos Aires 967 2001
9
BDO Argentinabdoargentina.com

Provide audit, tax, outsourcing, payroll, and consulting services through a global network with extensive professional expertise and presence.

Accounting 🇦🇷 Buenos Aires 778 1974
10
ICSicsred.com

This company offers technological solutions for telecommunications providers in multiple countries, with a focus on innovation, passion, and commitment to continuous improvement

Telecommunications 🇦🇷 Buenos Aires 701 1995
11
IRAM - Instituto Argentino de Normalización y Certificacióniram.org.ar

An Argentinean non-profit organization representing ISO, specializing in technical standards development, certification services, training, and providing access to valuable documents

Professional Services 🇦🇷 Buenos Aires 689 1935
12
Contract Workplacescontractworkplaces.com

A regional leader since 1996 in designing and constructing high-performance workspaces tailored to each organization's culture and needs across multiple countries

Architecture and Planning 🇦🇷 Buenos Aires 622 1996
13
ITRitrsa.com.ar

An expert technology company empowering clients to become modern, digital organizations, guiding them towards successful business transformation with agility and vision

IT Services and IT Consulting 🇦🇷 Buenos Aires 622 1989
14
Crowe | Arcrowe.com

A leading firm in Argentina, offering audit, tax, and consulting services with a focus on creating lasting value for clients worldwide

Accounting 🇦🇷 Buenos Aires 601 1940
15
Lisicki Litvin & Asociadosllyasoc.com

A specialized firm with over 27 years of experience in taxes, auditing, consulting, legal matters, and financial services, providing excellence and personalized service internationally

Accounting 🇦🇷 Buenos Aires 598 1989

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16
GlobalLogic Latinoaméricagloballogic.com

A digital engineering leader in Latin America, helping brands create innovative digital products and experiences through experience design, complex engineering, and data expertise

IT Services and IT Consulting 🇦🇷 Buenos Aires 548 n/a
17
CFOTech IT Global Servicescfotechlatam.com

Leading IT services company specializing in software development, testing, mobile apps, consultancy, outsourcing, and networking for client satisfaction and value-added solutions

IT Services and IT Consulting 🇦🇷 Buenos Aires 510 2015
18
Logicalis Latamla.logicalis.com

An IT solutions provider offering high-value technology services to industries worldwide, specializing in digital transformation through customized solutions in security, cloud, data management, and IoT

IT Services and IT Consulting 🇦🇷 Buenos Aires 484 n/a
19
Interloginterlog.com.ar

An international trade studio with over thirty years of experience, offering comprehensive services supported by highly trained personnel and advanced IT infrastructure

Import & Export 🇦🇷 Buenos Aires 410 1993
20
Pullmen RRHHpullmen.com

An esteemed consultancy specializing in talent management offering temporary staffing, outsourcing, direct hiring, training, and logistics services Passionate and committed

Human Resources Services 🇦🇷 Buenos Aires 407 1970
21
Estudio jurídico Rossi & Asocdrossi.com.ar

Specialized legal firm handling work accidents, traffic incidents, dismissals, successions, and pension law cases

Law Practice 🇦🇷 Buenos Aires 388 2005
22
Servicios y Consultoríaserviciosyconsultoria.com

A national group assisting states in tax administration, with a focus on tailored service, results, transparency, and sustainability

Fundraising 🇦🇷 Buenos Aires 371 1994
23
Hytechhytech.com.ar

A multinational engineering company specializing in Gas & Oil market for over 30 years They offer Conceptual, Basic, Detail Engineering and internal equipment for process plants

Oil and Gas 🇦🇷 Buenos Aires 357 1990
24
Grant Thornton Argentinagrantthornton.com.ar

A member of Grant Thornton International providing independent audit, tax, and advisory services to private sector companies and public interest entities worldwide

Accounting 🇦🇷 Buenos Aires 355 n/a
25
Go Globalgoglobal-consulting.com

A multinational company specializing in language services for global corporate communications, offering translation, localization, and content creation solutions with ISO-certified quality standards

Translation and Localization 🇦🇷 Buenos Aires 329 2008
26
C&S Informáticacys.com.ar

Technology company providing software engineering, training, and IT consulting solutions Specializing in custom software development for renowned organizations with a focus on honesty, transparency, and innovation

IT Services and IT Consulting 🇦🇷 Buenos Aires 326 1985
27
CIE - CENTRO DE INTEGRACIÓN ESCOLARcieintegracionescolar.com

A team of education professionals specializing in supporting children's integration in various school environments through personalized strategies crafted based on individual needs

Primary and Secondary Education 🇦🇷 Buenos Aires 320 2005
28
Lenor Grouplenorgroup.com

Lenor is a Conformity Assessment Body offering Certification, Inspection, Industrial Services, Testing, and Calibration, ensuring product and facility quality worldwide since 1999

Security and Investigations 🇦🇷 Buenos Aires 314 n/a
29
Estudio Contable VZestudiocontablevz.com.ar

Get expert advice from VZ Accounting Studio, offering solutions in auditing, administrative, accounting, tax, and legal consultancy services with a team of specialists

Accounting 🇦🇷 Buenos Aires 278 n/a
30
Estudio Juridico CRG

A legal firm with professionals dedicated to all branches of law, resolving conflicts, providing comprehensive legal advice, and fighting for neglected rights

Law Practice 🇦🇷 Buenos Aires 249 2011

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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 11, 2026.

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