| # | Company | Employees |
|---|---|---|
| 1 |
Contax S.A.contax.com.br
Specializing in customer relationship management, this company provides customized, intelligent solutions through a human-centric approach, utilizing technology and multichannel strategies for brands and consumers |
25,342 |
| 2 |
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 |
| 3 |
AlmavivA Experiencealmavivaexperience.com.br
A leading contact center company in Brazil offering innovative BPO solutions for customer service, sales, collections, and back office, along with Trade Marketing services |
23,587 |
| 4 |
Liqcontax.com.br
Transforms relationships with efficient, secure, and reliable integrated solutions. They operate in Brazil, Argentina, Colombia, Peru, Chile, Ecuador, Panama, USA, Canada, and Spain. |
18,719 |
| 5 |
Stefanini Brasilstefanini.com
A global IT services provider offering consulting, integration, solution development, BPO, outsourcing, and technology-based business solutions in over 35 countries |
12,265 |
| 6 | 11,271 | |
| 7 |
Telemonttelemont.com.br
Established in 1975, the company specializes in providing telecommunications services, including network implementation, maintenance, and operation, as well as IT solutions |
10,262 |
| 8 |
Neobponeohype.co
A Brazilian company specializing in Customer Experience and digital product development, with over 10,000 employees across 5 units in Sao Paulo and Rio de Janeiro |
10,231 |
| 9 |
Accenture Brasilaccenture.com
A global professional services company specializing in digital, cloud, and security services, serving clients in over 120 countries with 710,000 employees worldwide |
9,943 |
| 10 |
Algar Techalgartech.com
A Brazilian multinational with 25 years of experience, specializing in digital transformation for large corporations through CRM and technology environment management |
9,933 |
| 11 |
Callinkcallink.com.br
Callink provides personalized value-added solutions focused on customer journeys, specializing in customer experience by combining technology and humanization for transformative results |
7,097 |
| 12 |
Serproloja.serpro.gov.br
A leading public organization providing efficient and sustainable IT solutions for the Brazilian government, enhancing control, transparency, and public engagement |
6,109 |
| 13 |
Hitss Brasilglobalhitss.com
A multinational company in the digital solutions and IT services market, focusing on innovation, diversity, and inclusivity for employees and customers |
5,466 |
| 14 |
act digitalactdigital.com
Global consulting group supporting digital product design, software engineering, data science, and growth strategies for industry-leading companies worldwide. |
5,465 |
| 15 |
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 |
| 16 |
G4Fg4f.com.br
Specializing in project management, strategic management, and IT governance consulting, we offer integrated services for public and private sectors, including IT project management and professional training |
4,484 |
| 17 |
Datamétricadatametrica.com.br
Team of skilled professionals focused on client needs, driving company growth, service quality, efficiency, and job creation. |
4,454 |
| 18 |
Grupo Providergrupoprovider.com.br
A leading provider of innovative solutions in Call Center, Business Process Outsourcing, and Information Technology in Brazil and internationally |
4,235 |
| 19 |
F1RST Digital Servicesf1rst.com.br
An innovative and customer-focused organization, dedicated to providing services and experiences to over 50 million clients within the Santander ecosystem |
4,056 |
| 20 |
Nova Rionovario.com.br
A leading provider of comprehensive outsourcing services, with 30 years of experience, focusing on quality, environmental sustainability, cost reduction, and process optimization |
3,823 |
| 21 |
Grupo Contaxcontax.com.br
A leading provider of contact center and customer relationship management solutions, specializing in consultative, personalized services through various communication channels |
3,803 |
| 22 |
Metameta.com.br
Provides digital transformation solutions, from strategy to delivery, focusing on human-centered projects to optimize resources, simplify processes, and generate business growth. |
3,761 |
| 23 | 3,613 | |
| 24 |
Zup Innovationzup.com.br
specialized in building secure, scalable distributed cloud-native systems for large applications, accelerating product delivery and improving developer experience |
2,942 |
| 25 |
CASTcast4it.com
A technology solutions provider with 25 years of experience, offering IT services in finance, industry, services, and the public sector nationally and globally |
2,866 |
| 26 |
BRQ Digital Solutionsbrq.com
A leading digital transformation company in Brazil creating high-impact solutions to accelerate clients' businesses with intelligence and technology |
2,822 |
| 27 | 2,693 | |
| 28 |
SIMPRESSsimpress.com.br
With over 20 years of experience, we provide IT equipment outsourcing solutions to streamline businesses and make their routines more strategic and sustainable |
2,666 |
| 29 |
Spread Tecnologiaspread.com.br
A leading provider in Communication and Collaboration, Systems, and Managed Services for various sectors with over 30 years of experience |
2,658 |
| 30 |
Stefanini LATAMstefanini.com
Provides integrated digital transformation services including consulting, AI, cybersecurity, banking, manufacturing, and digital marketing across 41 countries. |
2,651 |
| 31 |
Ability Tecnologia e Serviços S/Aabilitytecnologia.com.br
Specialized in providing telecommunication services to corporate market and phone carriers with over 3,000 employees |
2,556 |
| 32 |
Natixis in Portugalportugalhub.natixis.com
A global financial services company in Portugal focuses on transforming traditional banking through innovative solutions, IT, banking support, and compliance services |
2,490 |
| 33 |
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 |
| 34 |
Stefanini EMEAstefanini.com
Global digital transformation accelerator with 35+ years experience offering diverse technology solutions and IT outsourcing services in 16 European countries |
2,420 |
| 35 |
CESARcesar.org.br
A Brazilian center for innovation since 1996, CESAR develops people, provides business solutions, and offers nearshore services with diverse talent |
2,308 |
| 36 |
Instituto de Pesquisas ELDORADOorg.br
A world-class provider of customized software and hardware solutions for various industries, connecting people, universities, and startups to drive technological innovation globally |
2,281 |
| 37 |
CTCctctech.com.br
A leading provider of IT solutions since 1994, offering innovative products and services nationwide with a focus on customer needs and quality |
2,264 |
| 38 |
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 |
| 39 |
G&Pgpnet.com.br
With 34 years of experience in IT, we specialize in driving innovation and providing technology solutions to help businesses thrive in the digital era |
2,019 |
| 40 |
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 |
| 41 |
Spassuspassu.com.br
Provider of IT services and software development solutions, specializing in outsourcing, service desk, and delivering innovative applications to national clients |
1,957 |
| 42 |
DIGISYSTEM - IT Solutionsdigisystem.com.br
A technology-focused business with over 30 years of experience, specializing in digital transformation and expanding presence in LATAM |
1,954 |
| 43 |
Quality Digitalqualitydigital.global
Leader in IT solutions, assisting Brazilian businesses with strategic goals through specialized services focused on strategy, digital transformation, automation, and integration |
1,934 |
| 44 |
SONDA Brasilsonda.com
A leading Latin American provider of technology solutions and services, with over 18,000 employees and 5,000 active clients in 10 countries We specialize in transforming businesses through technology Visit our website for more details |
1,859 |
| 45 |
Prodespprodesp.sp.gov.br
Technology company providing information technology services for the State Government of São Paulo |
1,838 |
| 46 |
BS Tecnologia e Serviços Ltda.bsservices.com.br
Leading Brazilian company specializing in IT solutions, consultancy, outsourcing, and corporate mobility Offers innovative, flexible, and customized solutions to optimize costs and enhance decision-making |
1,833 |
| 47 |
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 |
| 48 |
BB Tecnologia e Serviçosbbts.com.br
A technology provider focused on developing national technology, offering a diverse portfolio of services to generate efficiency and value for clients |
1,786 |
| 49 |
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 |
| 50 |
Infracommerceinfracommerce.lat
Specializing in digital business, the company offers a full-service approach including platform, marketing, content, payment, logistics, and customer service for B2B and B2C projects |
1,694 |
| 51 |
Qintessqintess.com
The company emphasizes agility and innovation, helping organizations create value, challenge current standards, and shape the future through visionary strategies and transformative ideas |
1,630 |
| 52 |
DDS Telecomunicações Ltdadds.com.br
Specializing in system integration, communication solutions for Contact Centers and Corporations nationwide, focusing on quality services tailored to each client's needs for competitive advantage |
1,596 |
| 53 |
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 |
| 54 |
CPQDcpqd.com.br
A leading innovator in information and communication technologies, specializing in solutions for various industries, digital transformation, IoT, AI, and more |
1,577 |
| 55 |
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 |
| 56 |
Central IT - Tecnologia em Negócioscentralit.com.br
Focused on solving organizational problems using information technology, providing and managing IT services with a commitment to client results and continuous improvement, emphasizing integrity and initiative |
1,490 |
| 57 |
Call Tecnologiacall.inf.br
A leading provider of call center services and IT solutions, specializing in implementing, operating, and upgrading critical public sector call centers |
1,463 |
| 58 |
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 |
| 59 |
Semantixsemantix.ai
Provides comprehensive data platforms and analytics solutions, leveraging Artificial Intelligence and Big Data for informed business decisions and growth. |
1,433 |
| 60 |
Ambev Techambevtech.com.br
The company develops knowledge and technology to simplify people's lives, focusing on innovating and creating solutions for sales and logistics, primarily for a major brewery |
1,432 |
| 61 |
Interfileatento.com
A leader in Business Process Outsourcing focused on financial and credit sectors, providing back-office solutions and digital services with a strong market presence |
1,389 |
| 62 |
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 |
| 63 | 1,366 | |
| 64 |
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 |
| 65 |
Grupo New Spaceservicos.gruponewspace.com.br
With over 35 years of experience, the group offers technological solutions in finance, retail, healthcare, and services through various business lines |
1,352 |
| 66 |
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 |
| 67 |
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 |
| 68 |
NTT DATAnttdata-solutions.com
Specialists in transforming SAP solutions to drive digital transformation, connecting business opportunities with cutting-edge technologies for more efficient and effective operations |
1,292 |
| 69 |
Prodabelprefeitura.pbh.gov.br
Promoting, integrating, and managing IT solutions for public services in Belo Horizonte, including areas like healthcare, education, finance, transportation, and digital inclusion |
1,291 |
| 70 |
Vectorsouvector.com.br
Specialized in Contact Center services since 2000, we offer call center solutions, credit recovery, CRM, training, surveys, and specialized workforce leasing |
1,286 |
| 71 | 1,255 | |
| 72 |
todo!contax.com.br
A leading IT firm in Brazil, operating in 12 cities with expertise in CRM, IT management, software solutions, and services engineering |
1,249 |
| 73 |
Sidia Instituto de Ciência e Tecnologiasidia.com
A research and innovation center based in Brazil developing innovative digital solutions for global markets, specializing in software for various technologies |
1,246 |
| 74 |
CERCREDcercred.com.br
Specializing in contact center services, credit recovery, sales, BPO, and digital solutions for over 30 years Offering innovative projects nationwide |
1,234 |
| 75 |
Celeparcelepar.pr.gov.br
Pioneering IT company founded in 1964, specializes in digital solutions for society, transforming government services for a simpler, intuitive experience |
1,232 |
| 76 |
Engemon Engenharia & Construçãoengemon.com.br
An engineering, construction, and technology group offering integrated solutions nationwide with a focus on excellence and multidisciplinary services for various industries |
1,215 |
| 77 |
FOURSYSfoursys.pt
With 23 years of experience in Brazil, this organization specializes in digital business solutions, offering innovative services to meet various client challenges |
1,187 |
| 78 |
Oiwancorp.com.br
Provider of integrated telecom solutions including traditional and IP telephony, data networks, unified communication, equipment rental and sales, Wi-Fi, and technical support |
1,181 |
| 79 |
Solutis Tecnologiassolutis.com.br
Provider of services in strategy, design, and technology, specializing in accelerating digital transformation through cognitive, analytics, IOT, UX, cloud, mobile, and support solutions |
1,153 |
| 80 |
Thomas Greg do Brasilportal.thomasgreg.com.br
Provides exclusive and high-quality document drafting services globally with skilled personnel and advanced technology to ensure confidentiality and standards |
1,153 |
| 81 |
EGM Consultoria
Specializing in IT solutions, our high-performance team has completed 130 projects since 2008, focusing on quality, timeliness, and ethical relationships |
1,093 |
| 82 |
DBC Companydbccompany.com.br
A tech company focused on providing technological solutions through Software Development, BI, Monitoring, Outsourcing, and Consulting services, recognized as a top IT employer in Brazil |
1,041 |
| 83 |
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 |
| 84 |
ILHA SERVICE TECNOLOGIA LTDA.ilhaservice.com.br
Specialized in IT services, including software/hardware support, service desk, maintenance, and network monitoring Also certified computer manufacturer and authorized Dell reseller for private and government sectors |
1,014 |
| 85 |
dti digitaldtidigital.com.br
Specializing in digital efficiency and agility, we drive business results with squads tailored to each business model using agile and design thinking |
1,004 |
| 86 |
SiDisidi.org.br
An R&D institute in Brazil creating transformative projects and solving problems, impacting millions through innovation and making the future happen. |
996 |
| 87 |
Mundialemundiale.ai
We specialize in simplifying brand-consumer relationships through personalized digital journeys via Chatbot, focusing on sales and performance solutions for businesses |
990 |
| 88 |
PARSpars.com.br
Distributor of software solutions, focusing on building long-lasting partnerships Values efficiency and creativity, working with top brands to empower competitive businesses Part of Grupo Sonda since 2012 |
976 |
| 89 |
Selbetti Tecnologiaselbetti.com.br
An innovative technology integrator offering end-to-end solutions in hardware, software, outsourcing, and a unique cloud platform to solve organizational challenges |
960 |
| 90 |
NUMENnumenit.com
Specialized in business consultancy for digital transformation, we provide services in process management and IT, integrating technologies for operational excellence |
959 |
| 91 |
Mutantmutant.com.br
A constantly evolving force that challenges the status quo, pushes boundaries, and believes in creating positive change through courage and determination |
943 |
| 92 |
InterOpinterop.com.br
Provides IT services including implementation, integration, monitoring, maintenance, and evolution of technology solutions for businesses of all sizes. |
936 |
| 93 |
Interplayersinterplayers.com.br
A hub for Health and Wellness business, integrating pharmacies, clinics, hospitals, distributors, and industries nationwide to promote market participation and solutions |
934 |
| 94 |
EloGroupelogroup.com
A business transformation platform integrating Technology, Analytics, and Management expertise to develop digital solutions that drive change for organizations |
922 |
| 95 |
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 |
| 96 |
Pontualpontualca.srv.br
Providing technology solutions with excellence, specializing in SAP Offering integrated management systems implementation, training, and consultancy services with commitment to customer ROI |
920 |
| 97 |
FCamarafcamara.com
technology and innovation ecosystem delivering digital transformation, e-commerce, cloud, cybersecurity, data analytics, and marketing services across multiple industries |
908 |
| 98 |
SEIDOR Brasilseidorbrasil.com.br
Provides software consulting, IT services, cloud computing, IoT. Over 40 years experience. Strategic alliances with major tech developers globally, Platinum Partner with SAP. |
904 |
| 99 |
IT2B - Tecnologiait2b.com.br
A leading IT and Telecom solutions provider in Brazil, offering integration, outsourcing, product sales, printing, and specialized technical services to corporate and public sectors |
873 |
| 100 |
Venturusventurus.org.br
A non-profit organization in Brazil specializing in Research, Development & Innovation with global reach Working on cutting-edge projects in various industries |
866 |
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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 Oct 24, 2026.
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