These large managed service providers in Latin America primarily operate in IT services and telecommunications. Key players include Stefanini Group, a global company offering automation, cloud, IoT, and AI solutions, and Oi, focused on high-speed connectivity and digital services. SONDA specializes in digital transformation, while Telmex provides a wide range of advanced telecom and IT services in Mexico.
The companies listed are predominantly large enterprises with a significant presence across the region. Many of them, such as SONDA (founded 1974), Algar Telecom (founded 1954), and Embratel (founded 1965), have long histories, indicating an established market with experienced providers.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Stefanini Groupstefanini.com
A global company offering a wide range of innovative services such as automation, cloud, IoT, UX, AI, consulting, and marketing solutions |
24,358 | |||
| 2 | 20,150 | ||||
| 3 | 14,981 | ||||
| 4 |
Telmextelmex.com
Leading telecom and IT services company in Mexico, offering a wide range of advanced solutions from connectivity to cloud, cybersecurity, and business solutions for companies of all sizes. |
14,394 | |||
| 5 | 11,271 | ||||
| 6 |
MEGACABLEmegacable.com.mx
A leading Mexican telecommunications company with 45 years of service, offering TV, internet, digital and mobile phone services to nearly 5 million subscribers nationwide |
10,459 | |||
| 7 |
Algar Telecomalgartelecom.com.br
A telecommunications and technology company offering high-speed internet, quality mobile services, voice and data solutions, IT services, and innovative media solutions |
5,882 | |||
| 8 |
Embratelembratel.com.br
Specializing in IT, Telecom, and Mobility solutions, we help businesses evolve through digital transformation by offering a complete portfolio for innovation and growth |
5,118 | |||
| 9 |
Gtdgtdcompany.com
A telecommunications company with over 40 years of experience in Chile, Peru, Colombia, Mexico, Spain, and Italy, offering personalized services and cutting-edge technology solutions |
3,726 | |||
| 10 |
Telconettelconet.ec
A company in Ecuador providing Connectivity Solutions, Internet, Data Center, and Managed Services for over 22 years with a focus on customer needs and quality |
3,548 | |||
| 11 | 3,386 | ||||
| 12 | 2,578 | ||||
| 13 |
LEGALoperadora.legal
LEGAL provides technology rental and subscription services in São Paulo, offering solutions such as internet, drones, WiFi infrastructure, IoT, and gadget rentals for businesses and events |
2,576 | |||
| 14 | 2,473 | ||||
| 15 |
Montreal Oficialmontreal.com.br
A technology company in Brazil with over 30 years of experience, specializing in developing and implementing IT solutions for businesses globally |
2,464 | |||
| 16 |
Unifiqueunifique.com.br
Provides communication solutions: internet, TV, landline, mobile, and data center services for businesses, homes, and governments, with advanced technology and customer relationships. |
2,246 | |||
| 17 | 2,120 | ||||
| 18 |
Stefanini North America and APACstefanini.com
A multinational company offering innovative technological solutions to help clients transform their business through digital innovation and co-creation for a better future |
1,999 | |||
| 19 |
IT Solutionsit-solutions.com.mx
A company offering integrated IT solutions, designing and implementing functional architectures tailored to meet clients' requirements for over 21 years |
1,955 | |||
| 20 |
Totalplay Empresarialtotalplayempresarial.com.mx
Innovative technology solutions for businesses and government entities: telecom, managed services, cloud collaboration, cybersecurity, and high-speed internet, empowering growth with cutting-edge tools |
1,889 | |||
| 21 |
Prodespprodesp.sp.gov.br
Technology company providing information technology services for the State Government of São Paulo |
1,838 | |||
| 22 |
Positivo S+positivosmais.com
Provider of managed IT services including digital workplace, cybersecurity, infrastructure, and cloud services with strong market presence in Brazil. |
1,828 | |||
| 23 |
Prodamportal.prodam.sp.gov.br
Strategic IT and communication solutions integrator for the City of Sao Paulo, enhancing citizen quality of life through innovative and transparent measures |
1,759 | |||
| 24 |
Alestraalestra.mx
A Mexican telecommunications company providing broadband and value-added services under the brand Alestra, with a focus on quality and service excellence |
1,740 | |||
| 25 |
ARUS Oficialarus.com.co
A service company that integrates knowledge, technology, and information management to provide superior customer experience through integrated IT, BPO services, and solutions |
1,593 | |||
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. | |||||
| 26 |
Algargrupoalgar.com.br
Established in 1929, this entrepreneurial group operates in IT/Telecom, Agro, Services, and Tourism sectors nationwide, providing innovative, sustainable solutions |
1,583 | |||
| 27 |
T-Systems do Brasilt-systems.com
Global leader in IT & Communications Technology, offering integrated solutions in Digital, SAP, Cloud, Infrastructure, and Security with focus on innovation and customer satisfaction |
1,528 | |||
| 28 |
TIVIT LATAMlatam.tivit.com
A multinational tech company in Latin America providing customized solutions in Digital Business, Cloud Solutions, Technology Platforms, and CyberSecurity for various industries |
1,490 | |||
| 29 |
linkredlink.com.ar
A leading Argentine company with 30 years of experience in software development and payment integrations, offering innovative solutions for financial entities and retailers |
1,477 | |||
| 30 |
Globalweb Corpglobalweb.com.br
Cloud services provider offering ERP, CRM, security, data storage, and infrastructure solutions tailored to enhance business competitiveness with modern technology services |
1,443 | |||
| 31 |
Accenture Méxicoaccenture.com
Global management consulting, technology services, and outsourcing company with over 319,000 professionals serving clients in 120+ countries Partnering to drive high-performance businesses |
1,400 | |||
| 32 |
Nava | Tech for Businessnava.com.br
A technology company passionate about people and innovation, empowering employees to create solutions for leading companies to positively impact the world |
1,374 | |||
| 33 |
DBAdba.com.br
Supplier of IT solutions for corporations and Government, specializing in technology, quality IT project management, and tailored expertise in clients' businesses |
1,353 | |||
| 34 |
Lanlink Informática Ltda.lanlink.com.br
A technology solutions provider established in 1988, dedicated to delivering quality, excellence, and reliability for business needs with long-term client relationships |
1,352 | |||
| 35 |
BrBPObrbpo.com.br
Brazilian capital-backed firm specialized in interactive client relationship management through integrated technology solutions, omnichannel platforms, and diverse service offerings across 12 strategic nationwide locations |
1,332 | |||
| 36 |
Canviacanvia.com
Support digital transformation with IoT, AI, Big Data, Machine Learning, and Robotics to optimize user-centered business models and processes. |
1,325 | |||
| 37 |
Huawei Latinoaméricahuawei.com
A global leader in ICT solutions, providing end-to-end capabilities in carrier networks, enterprise, consumer, and cloud computing fields Focus on innovation and customer value |
1,318 | |||
| 38 |
NETCOM Business Contact Centernetcom.com.pa
Specializing in innovative telecommunication solutions and Contact Center services to help clients gain a competitive edge in their industry |
1,289 | |||
| 39 |
T-Systems Méxicot-systems.com
A strategic partner for digital transformation, offering competitive solutions tailored to each organization's challenges and objectives through innovative infrastructure, digitization, security, and connectivity services |
1,193 | |||
| 40 |
Puntonet S.A.puntonet.ec
Ecuadorian telecommunications company providing IT strategies for clients to manage technology and gain competitive advantages with a flexible organizational structure |
1,143 | |||
| 41 |
Coasin Logicaliscoasinlogicalis.com
A leading company in technology solutions and IT services, with over 50 years of experience, offering outsourcing services across various industries in Latin America |
1,078 | |||
| 42 |
Mob Telecommobtelecom.com.br
This internet and telephony service provider in Ceará offers a wide range of services including internet access, hosting, system development, and corporate telephony |
1,049 | |||
| 43 |
Iron Mountain Brasilironmountain.com.br
Global firm specializing in storing, protecting, and managing information and assets for over 220k clients worldwide through digital solutions, data management, and secure destruction services |
1,030 | |||
| 44 |
IFX Networksifxnetworks.com
Leading Latin America's top Managed Service Provider specializing in telecom and IT solutions, with 25 years of experience, coverage in 17 countries, 110,000 km of fiber optic, and 20 data centers |
978 | |||
| 45 |
InterOpinterop.com.br
Provides IT services including implementation, integration, monitoring, maintenance, and evolution of technology solutions for businesses of all sizes. |
936 | |||
| 46 |
NTT DATA BRASILnttdata.com
Global IT services arm of NTT with over 75,000 employees in 40+ countries Leading provider of innovative IT solutions benefiting businesses and organizations |
921 | |||
| 47 |
Ascentyascenty.com
Leading provider of data center and connectivity services in Latin America with a strong presence in Brazil, Chile, and Mexico |
919 | |||
| 48 |
Scala Data Centersscaladatacenters.com
Leading Latin American provider of sustainable hyperscale data centers, offering customized solutions with high availability, energy efficiency, superior density, and ESG practices |
904 | |||
| 49 |
Bestelbestel.com.mx
We are a team of experts in Telecommunications and Information Technologies offering a wide range of certified products and services nationwide in Mexico |
865 | |||
| 50 |
Extreme Digital Solutions - EDSwww2.extremedigital.com.br
Specializing in innovation and technology, we simplify business processes through creative and quality solutions, focusing on digital transformation, application development, and AI implementation |
823 | |||
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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 Latin America
- The largest companies in Latin America 27,921
- Manufacturers in Latin America 3,431
- Retail chains in Latin America 3,340
- Multinational companies in Latin America 2,975
- Education providers in Latin America 2,329
- Critical infrastructure operators in Latin America 2,262
- Financial services firms in Latin America 1,653
- Healthcare providers in Latin America 1,650
- Financial Services companies in Latin America 1,521
- Companies with a mobile app in Latin America 1,507
- Retail companies in Latin America 1,379
- E-commerce companies in Latin America 1,320
- Public sector organisations in Latin America 1,301
- Food and beverage companies in Latin America 1,290
- Higher Education companies in Latin America 1,236
- Distributors and wholesalers in Latin America 1,223
- Corporate groups and holding companies in Latin America 1,216
- Companies with in-house R&D in Latin America 1,191
- IT Services and IT Consulting companies in Latin America 1,091
- Food and Beverage Services companies in Latin America 1,020
- Hospitals and Health Care companies in Latin America 995
- Government Administration companies in Latin America 958
- Construction companies in Latin America 926
- Professional services firms in Latin America 924