# 100 leading IT services companies in the world

Tamtam tracks 20,934 IT services companies worldwide. This list ranks the 100 largest by number of employees on LinkedIn, led by Tata Group, Tata Consultancy Services and Accenture. Their median headcount is 40,513. The most common headquarters are Bengaluru (9), Mumbai (7) and Madrid (4).

These are large global IT services companies, many operating as major consulting firms. They focus on digital transformation, technology modernization, and providing comprehensive IT solutions. Notable examples include Accenture, which offers professional services for digital transformation, and Tata Consultancy Services, which provides technology services worldwide to enable client transformation across the AI stack. Infosys is another key player, specializing in digital services and consulting with AI-powered solutions.

A significant pattern among these companies is their global reach and diverse client base, often serving both businesses and governments. Many are headquartered in major international hubs such as Mumbai, Dublin, and London, reflecting their worldwide operational scope. The list also includes large diversified conglomerates like Tata Group and Mahindra Group, which have extensive IT services arms.

🌍 World · 100 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Tata Group](https://www.tamtam.ai/c/tata-group) (tata.com)<br>Global enterprise operating in over 100 countries, focused on improving community quality of life through ethical business and philanthropy. | Executive Offices | 🇮🇳 Mumbai | 1,017,626 | 1868 |
| 2 | [Tata Consultancy Services](https://www.tamtam.ai/c/tata-consultancy-services) (tcs.com)<br>Provides technology services worldwide, enabling client transformation across the AI stack, fostering innovation, engineering excellence, and customer service for adaptive enterprises. | IT Services and IT Consulting | 🇮🇳 Mumbai | 708,725 | 1968 |
| 3 | [Accenture](https://www.tamtam.ai/c/accenture) (accenture.com)<br>It provides professional services to businesses and governments, focusing on digital transformation, operational optimization, and enhancing citizen services globally. | Business Consulting and Services | 🇮🇪 Dublin | 687,682 |  |
| 4 | [Deloitte](https://www.tamtam.ai/c/deloitte) (deloitte.com)<br>Global professional services firm empowering diverse talents to drive progress for clients worldwide through advice, action, and integrity | Business Consulting and Services | 🇺🇸 Worldwide | 526,765 | 1845 |
| 5 | [EY](https://www.tamtam.ai/c/ey) (ey.com)<br>A global organization with diverse teams in over 150 countries provides assurance, consulting, law, strategy, tax, and transactions to help clients grow and transform | Professional Services | 🇬🇧 London | 404,207 |  |
| 6 | [Cognizant](https://www.tamtam.ai/c/cognizant) (cognizant.com)<br>This company helps clients modernize technology, reimagine processes, and transform experiences to stay ahead in a rapidly changing world, improving everyday life | IT Services and IT Consulting | 🇺🇸 Teaneck | 372,148 |  |
| 7 | [Infosys](https://www.tamtam.ai/c/infosys) (infosys.com)<br>A global leader in digital services and consulting, enabling clients worldwide to navigate their digital transformation with AI-powered solutions and agile digital expertise | IT Services and IT Consulting | 🇮🇳 Bengaluru | 368,986 | 1981 |
| 8 | [Capgemini](https://www.tamtam.ai/c/capgemini-paris) (capgemini.com)<br>Imagine future organizations, making it real with AI, technology, and people, delivering end-to-end services and solutions across strategy, technology, design, engineering and business operations | IT Services and IT Consulting | 🇫🇷 Paris | 342,989 |  |
| 9 | [IBM](https://www.tamtam.ai/c/ibm) (ibm.com)<br>It focuses on collaboration among technologists, developers, and engineers to improve technology, infrastructure, software, and consulting for better solutions. | IT Services and IT Consulting | 🇺🇸 Armonk | 335,625 |  |
| 10 | [Wipro](https://www.tamtam.ai/c/wipro) (wipro.com)<br>A leading technology services and consulting company offering innovative solutions for digital transformation, with a diverse global workforce and focus on inclusivity | IT Services and IT Consulting | 🇮🇳 Bengaluru | 271,675 |  |
| 11 | [HCLTech](https://www.tamtam.ai/c/hcltech) (hcltech.com)<br>Global technology company providing digital transformation, cloud, IoT, cybersecurity, analytics, and engineering services to enterprises worldwide. | IT Services and IT Consulting | 🇮🇳 Noida | 256,090 | 1991 |
| 12 | [Mahindra Group](https://www.tamtam.ai/c/mahindra-group) (mahindra.com)<br>Leading multinational federation with businesses in farm equipment, vehicles, IT, finance, renewable energy, agriculture, logistics, hospitality, and real estate. | Executive Offices | 🇮🇳 Mumbai | 237,131 | 1945 |
| 13 | [TP](https://www.tamtam.ai/c/tp-paris) (tp.com)<br>Provides digital business services, modernized and empathetic, prepared for the future in the AI era with intelligent solutions. | Outsourcing and Offshoring Consulting | 🇫🇷 Paris | 229,240 | 1978 |
| 14 | [Concentrix](https://www.tamtam.ai/c/concentrix) (concentrix.com)<br>Provides customer experience solutions and technology, improving business performance for global brands across various industries, creating better business outcomes. | IT Services and IT Consulting | 🇺🇸 Newark | 218,681 | 1983 |
| 15 | [TECH MAHINDRA](https://www.tamtam.ai/c/tech-mahindra) (techmahindra.com)<br>Tech Mahindra offers innovative IT experiences globally, leveraging next-gen technologies for digital transformation Part of Mahindra Group, driving sustainable business and societal change | IT Services and IT Consulting | 🇮🇳 Pune | 159,000 | 1986 |
| 16 | [Allianz Services](https://www.tamtam.ai/c/allianz-services) (careers.allianz.com)<br>Provides specialized core insurance operations, shared services, business analytics, engineering, and management consulting to drive client experience within a global insurance group. | Financial Services | 🇩🇪 Munich | 159,000 |  |
| 17 | [Genpact](https://www.tamtam.ai/c/genpact) (genpact.com)<br>A global professional services firm with over 125,000 employees in 30+ countries, specializing in digital operations, data, technology, and AI solutions for leading enterprises | Business Consulting and Services | 🇺🇸 New York | 151,199 | 1997 |
| 18 | [Amazon Web Services (AWS)](https://www.tamtam.ai/c/amazon-web-services-aws) (amazon.com)<br>A global cloud computing provider offering scalable, reliable, and cost-effective infrastructure services to businesses worldwide, eliminating the need for capital infrastructure expenses | IT Services and IT Consulting | 🇺🇸 Seattle | 147,090 | 2006 |
| 19 | [Orange](https://www.tamtam.ai/c/orange-issy-les-moulineaux) (orange.com)<br>A leading global telecommunications operator offering services to millions of customers and multinational companies across 26 countries | Telecommunications | 🇫🇷 Issy-les-Moulineaux | 146,935 |  |
| 20 | [Larsen & Toubro](https://www.tamtam.ai/c/larsen-and-toubro) (larsentoubro.com)<br>Multinational company specializing in engineering, procurement, construction projects, hi-tech manufacturing, and sustainability-focused services across over 50 countries worldwide. | Executive Offices | 🇮🇳 Mumbai | 142,350 |  |
| 21 | [NTT DATA, Inc.](https://www.tamtam.ai/c/ntt-data-inc) (global.ntt)<br>A global IT services provider offering a wide range of business and technology solutions as it transitions to NTT DATA | IT Services and IT Consulting | 🇯🇵 Tokyo | 140,000 |  |
| 22 | [Dell Technologies](https://www.tamtam.ai/c/dell-technologies) (dell.com)<br>Provide essential technology infrastructure enabling organizations to transform and advance their digital futures through innovative solutions and support. | Computer Hardware Manufacturing | 🇺🇸 Round Rock | 133,530 | 1984 |
| 23 | [FUJITSU](https://www.tamtam.ai/c/fujitsu) (global.fujitsu)<br>Leading global information and communication technology company, offering technology products, solutions, and services, connecting people, technology, and ideas for a sustainable world. | IT Services and IT Consulting | 🇬🇧 | 124,000 | 1935 |
| 24 | [LTIMindtree](https://www.tamtam.ai/c/ltimindtree) (ltm.com)<br>A global technology consulting company driving digital transformation for enterprises, delivering superior business outcomes through domain expertise and innovative digital solutions | IT Services and IT Consulting | 🇮🇳 Mumbai | 99,387 |  |
| 25 | [DXC Technology](https://www.tamtam.ai/c/dxc-technology) (dxc.com)<br>It assists global companies in managing critical systems, modernizing IT, optimizing data, and ensuring security across various cloud environments. | IT Services and IT Consulting | 🇺🇸 Ashburn | 90,597 | 2017 |
| 26 | [Hewlett Packard Enterprise](https://www.tamtam.ai/c/hewlett-packard-enterprise) (hpe.com)<br>This company is a global edge-to-cloud company that drives technology and innovation to fulfill its passion and purpose | IT Services and IT Consulting | 🇺🇸 Houston | 90,021 |  |
| 27 | [Kyndryl](https://www.tamtam.ai/c/kyndryl) (kyndryl.com)<br>A global leader in designing, running, and managing advanced technology infrastructure, focusing on excellence, innovation, and advancing vital systems for human progress | IT Services and IT Consulting | 🇺🇸 New York | 90,000 | 2021 |
| 28 | [CGI](https://www.tamtam.ai/c/cgi) (cgi.com)<br>Global IT and business consulting firm delivering insights-driven, sustainable services across 21 industries worldwide to help accelerate returns on investments | IT Services and IT Consulting | 🇺🇸 Montreal | 89,000 | 1976 |
| 29 | [Atos](https://www.tamtam.ai/c/atos) (atos.net)<br>Provides tailored AI-powered, end-to-end solutions for all industries, specializing in cybersecurity, cloud, and high-performance computing, fostering a secure, decarbonized future. | IT Services and IT Consulting | 🇫🇷 95877 Bezons | 85,294 |  |
| 30 | [Accenture in India](https://www.tamtam.ai/c/accenture-in-india) (accenture.com)<br>Global professional services company specializing in digital, cloud, and security solutions across 40+ industries with a focus on technology and human ingenuity for global clients | IT Services and IT Consulting | 🇮🇳 Bengaluru | 81,860 | 1989 |
| 31 | [Sutherland](https://www.tamtam.ai/c/sutherland-pittsford) (sutherlands.com)<br>A digital transformation company focused on creating human-centered brand experiences through design, analytics, AI, cognitive technology, and automation | IT Services and IT Consulting | 🇺🇸 Pittsford (Rochester) | 67,102 | 1986 |
| 32 | [EPAM Systems](https://www.tamtam.ai/c/epam-systems) (epam.com)<br>Global digital transformation services provider specializing in product development and engineering, creating better enterprise, education, and health platforms worldwide | IT Services and IT Consulting | 🇺🇸 Newtown | 66,049 | 1993 |
| 33 | [ITC Limited](https://www.tamtam.ai/c/itc-limited) (itcportal.com)<br>Diversified business in FMCG, packaging, paperboards, specialty papers, and agriculture with strong focus on sustainability and rural livelihoods. | Manufacturing | 🇮🇳 Kolkata | 62,035 | 1910 |
| 34 | [WNS](https://www.tamtam.ai/c/wns) (wns.com)<br>Global provider of digital-led business transformation, combining industry knowledge, technology, analytics, and process expertise to deliver innovative solutions. | Business Consulting and Services | 🇺🇸 New York | 61,367 | 1996 |
| 35 | [EXL](https://www.tamtam.ai/c/exl) (exlservice.com)<br>The company partners with businesses to tailor data-driven solutions, improve efficiency, enhance customer relationships, and drive revenue growth through collaboration and technology | Business Consulting and Services | 🇺🇸 New York | 58,974 | 1999 |
| 36 | [Konecta](https://www.tamtam.ai/c/konecta-madrid) (konecta.com)<br>Global provider of customer management outsourcing, offering acquisition, retention, support, and collections across multiple industries with advanced digital technologies. | Outsourcing and Offshoring Consulting | 🇪🇸 Madrid | 56,399 |  |
| 37 | [Almaviva Group](https://www.tamtam.ai/c/almaviva-group) (almavivagroup.com)<br>Provides digital innovation and ICT solutions globally, supporting business model transformation and competitiveness across public and private sectors. | IT Services and IT Consulting | 🇮🇹 Rome | 52,112 | 2005 |
| 38 | [Avanade](https://www.tamtam.ai/c/avanade) (avanade.com)<br>Innovative provider of digital, cloud, and advisory services within the Microsoft ecosystem, focused on making a human impact, solving challenges, and promoting sustainability and diversity | IT Services and IT Consulting | 🇺🇸 Seattle | 50,000 | 2000 |
| 39 | [Amentum](https://www.tamtam.ai/c/amentum) (amentum.com)<br>Amentum is a global leader in engineering, project management, and solutions integration, specializing in modernizing critical missions worldwide with speed and confidence | Defense and Space Manufacturing | 🇺🇸 Chantilly | 50,000 |  |
| 40 | [NTT DATA](https://www.tamtam.ai/c/ntt-data) (nttdata.com)<br>Providing IT and business consulting, digital transformation, managed services, and industry solutions to clients worldwide for long-term success. | IT Services and IT Consulting | 🇯🇵 Tokyo | 48,385 |  |
| 41 | [Sopra Steria](https://www.tamtam.ai/c/sopra-steria) (soprasteria.com)<br>Offers consulting, digital services, and solutions, assisting large companies and organizations with digital transformation, improving competitiveness through technology and collaboration. | IT Services and IT Consulting | 🇫🇷 Paris | 47,609 |  |
| 42 | [Xerox](https://www.tamtam.ai/c/xerox) (xerox.com)<br>It provides innovative technology solutions for the workplace, focusing on print technology, software, services, and financial solutions for clients. | Business Consulting and Services | 🇺🇸 Norwalk | 47,247 |  |
| 43 | [Infosys BPM](https://www.tamtam.ai/c/infosys-bpm) (infosysbpm.com)<br>Provides integrated business process management services globally, focusing on cost reduction, productivity improvement, and process re-engineering for clients. | IT Services and IT Consulting | 🇮🇳 Bengaluru | 45,382 |  |
| 44 | [Minsait](https://www.tamtam.ai/c/minsait) (minsait.com)<br>A leading Spanish technological consultant operating globally, leveraging cloud, security, payments, and innovative technology to drive business and societal impact #MoreMinsait | IT Services and IT Consulting | 🇪🇸 Alcobendas | 45,000 | 2016 |
| 45 | [Capgemini Engineering](https://www.tamtam.ai/c/capgemini-engineering) (capgemini.com)<br>Engineering R&D services, combining broad industry knowledge and cutting-edge digital and software technologies to accelerate clients' journey towards Intelligent Industry. | Engineering Services | 🇫🇷 Paris | 44,836 |  |
| 46 | [TTEC](https://www.tamtam.ai/c/ttec) (ttec.com)<br>The company specializes in helping businesses create excellent customer experiences using a blend of human interaction and technology Stay updated with their newsletter | Outsourcing and Offshoring Consulting | 🇺🇸 Austin | 44,473 | 1984 |
| 47 | [Mphasis](https://www.tamtam.ai/c/mphasis) (mphasis.com)<br>A leading applied technology services company focused on innovation, customer-centric solutions, digital transformation, and disruptive technology to keep clients ahead in the marketplace | IT Services and IT Consulting | 🇮🇳 Bengaluru | 43,722 |  |
| 48 | [L&T Technology Services](https://www.tamtam.ai/c/l-and-t-technology-services) (ltts.com)<br>Provides engineering and technology services globally, supporting product design, development, and delivery across diverse industries with innovation. | Engineering Services | 🇮🇳 Vadodara | 41,420 |  |
| 49 | [RPG Group](https://www.tamtam.ai/c/rpg-group) (rpggroup.com)<br>A diversified business group with a turnover of over US$ 44 billion, operating in infrastructure, automotive, IT, pharmaceuticals, energy, and plantations | Manufacturing | 🇮🇳 Mumbai | 40,984 | 1979 |
| 50 | [Hitachi](https://www.tamtam.ai/c/hitachi) (hitachi.com)<br>A technology and innovation company committed to creating a more sustainable society through advanced social infrastructure systems and improving quality of life | IT Services and IT Consulting | 🇯🇵 Tokyo | 40,513 | 1910 |
| 51 | [UST](https://www.tamtam.ai/c/ust) (ust.com)<br>Global digital transformation solutions provider partnering with companies to drive innovation, agility, and impact through technology-driven transformations across 30 countries | IT Services and IT Consulting | 🇺🇸 Aliso Viejo | 40,473 |  |
| 52 | [Boston Consulting Group (BCG)](https://www.tamtam.ai/c/boston-consulting-group-bcg) (bcg.com)<br>A global management consulting firm that partners with organizations to tackle challenges, drive growth, and create positive societal impact through innovative solutions | Business Consulting and Services | 🇺🇸 Boston | 40,412 | 1963 |
| 53 | [Indra Group](https://www.tamtam.ai/c/indra-group) (indragroup.com)<br>Leading multinational providing defense, space, air traffic management, and mobility solutions alongside information technology services, artificial intelligence, cybersecurity, and advanced digital transformation projects. | Defense and Space Manufacturing | 🇪🇸 Madrid | 39,308 |  |
| 54 | [Conduent](https://www.tamtam.ai/c/conduent) (conduent.com)<br>Digital business solutions provider leveraging cloud computing, AI, and automation to enhance client operations, improve customer experiences, and drive efficiencies | Business Consulting and Services | 🇺🇸 Florham Park | 38,990 | 2017 |
| 55 | [ALTEN](https://www.tamtam.ai/c/alten) (alten.com)<br>Provides engineering and IT services, supporting businesses in technological and sustainable transformation across various industries with high-level consultant-engineers. | Engineering Services | 🇫🇷 Boulogne-Billancourt | 38,710 | 1988 |
| 56 | [Booz Allen Hamilton](https://www.tamtam.ai/c/booz-allen-hamilton) (boozallen.com)<br>Innovative technology consulting firm advancing critical missions through AI, cybersecurity, and engineering solutions, empowering clients to shape the future | Software Development | 🇺🇸 McLean | 37,244 | 1914 |
| 57 | [Leidos](https://www.tamtam.ai/c/leidos) (leidos.com)<br>Global technology leader providing digital mission innovations and efficient technical services for government and commercial customers through a diverse, flexible work environment. | Defense and Space Manufacturing | 🇺🇸 Reston | 37,171 | 1969 |
| 58 | [SAIC](https://www.tamtam.ai/c/saic) (bit.ly)<br>Advanced technology mission integrator delivering secure high-end solutions in mission IT, enterprise IT, engineering, and professional services for defense, space, and intelligence. | Defense and Space Manufacturing | 🇺🇸 Reston | 36,645 | 1969 |
| 59 | [RP Sanjiv Goenka Group](https://www.tamtam.ai/c/rp-sanjiv-goenka-group) (rpsg.in)<br>A rapidly expanding conglomerate with diverse holdings in power, energy, manufacturing, retail, IT services, FMCG, media, entertainment, and agriculture sectors | Consumer Services | 🇮🇳 Kolkata | 36,571 | 1820 |
| 60 | [Coforge](https://www.tamtam.ai/c/coforge) (coforge.com)<br>Global provider of digital transformation services, specializing in AI, cloud, automation, cybersecurity, and industry-specific platform solutions. | IT Services and IT Consulting | 🇮🇳 Noida | 36,026 |  |
| 61 | [Hexaware Technologies](https://www.tamtam.ai/c/hexaware-technologies) (hexaware.com)<br>Global technology and business process services company enabling enterprises worldwide to accelerate digital transformation with innovation and inclusive culture. | IT Services and IT Consulting | 🇮🇳 Navi Mumbai | 35,883 |  |
| 62 | [GlobalLogic](https://www.tamtam.ai/c/globallogic) (globallogic.com)<br>A global product development services leader, combining software engineering expertise and industry experience to help customers design and deliver next-generation products and digital experiences | Software Development | 🇺🇸 Santa Clara | 35,494 |  |
| 63 | [Amdocs](https://www.tamtam.ai/c/amdocs) (amdocs.com)<br>A global company empowers clients to innovate and create exceptional digital experiences, accelerate cloud migration, differentiate in 5G era, and enhance communication and media experiences | Software Development | 🇺🇸 Chesterfield | 34,637 |  |
| 64 | [Quess Corp Limited](https://www.tamtam.ai/c/quess-corp-limited) (quesscorp.com)<br>An integrated business service provider offering technology-enabled staffing and managed outsourcing services to create a more productive workforce and drive success for clients | Staffing and Recruiting | 🇮🇳 Bengaluru | 33,670 | 2007 |
| 65 | [FPT Software](https://www.tamtam.ai/c/fpt-software) (fptsoftware.com)<br>Global technology company providing AI-powered IT services and solutions, serving diverse industries with scalable, high-quality digital transformation support. | IT Services and IT Consulting | 🇻🇳 Hanoi | 32,983 |  |
| 66 | [Serco](https://www.tamtam.ai/c/serco-hook) (serco.com)<br>Innovative solutions for global challenges in justice, migration, defense, space, health, and transport through service design, program management, and systems integration | IT Services and IT Consulting | 🇬🇧 Hook | 32,618 |  |
| 67 | [NTT DATA Europe & Latam](https://www.tamtam.ai/c/ntt-data-europe-and-latam) (nttdata.com)<br>Global IT services provider transforming clients through consulting, solutions, and managed services to enable a confident move into the digital future | IT Services and IT Consulting | 🇪🇸 Madrid | 31,932 |  |
| 68 | [KBR, Inc.](https://www.tamtam.ai/c/kbr-inc) (kbr.com)<br>Providing science, technology, and engineering solutions to governments and companies worldwide addressing significant contemporary challenges and opportunities. | IT Services and IT Consulting | 🇺🇸 Houston | 31,433 |  |
| 69 | [HGS](https://www.tamtam.ai/c/hgs) (hgs.com)<br>A global leader in customer experience optimization, digital transformation, and business process management, combining automation, analytics, and AI to drive competitiveness | IT Services and IT Consulting | 🇺🇸 Chicago | 29,010 |  |
| 70 | [Persistent Systems](https://www.tamtam.ai/c/persistent-systems) (persistent.com)<br>AI-led digital engineering and enterprise modernization partner delivering innovative solutions and industry expertise to global clients across multiple sectors. | IT Services and IT Consulting | 🇮🇳 Pune | 28,947 |  |
| 71 | [Orange Business](https://www.tamtam.ai/c/orange-business) (orange-business.com)<br>Leading European network and digital integrator leveraging expertise in next-generation connectivity, cloud, and cybersecurity solutions for positive impact on customers and planet. | IT Services and IT Consulting | 🇫🇷 Paris | 28,626 |  |
| 72 | [Globant](https://www.tamtam.ai/c/globant) (globant.com)<br>A digitally native company specializing in helping organizations innovate and unleash potential, with a focus on diversity, inclusion, and cybersecurity | IT Services and IT Consulting | 🇺🇸 San Francisco | 28,419 |  |
| 73 | [TEKsystems](https://www.tamtam.ai/c/teksystems) (teksystems.com)<br>Global solutions provider specializing in accelerating business transformation through resolving technology, business, and talent challenges for Fortune 500 organizations | IT Services and IT Consulting | 🇺🇸 Hanover | 28,131 | 1983 |
| 74 | [Maximus](https://www.tamtam.ai/c/maximus) (maximus.com)<br>The company provides transformative technology services, digital customer experiences, and clinical health services to improve lives and support customer missions | Government Administration | 🇺🇸 McLean | 26,654 |  |
| 75 | [General Dynamics Information Technology](https://www.tamtam.ai/c/general-dynamics-information-technology) (gdit.com)<br>Provides technology and professional services to U.S. government agencies, specializing in digital modernization, AI, cloud, cyber, and application development worldwide. | IT System Data Services | 🇺🇸 Falls Church | 26,598 |  |
| 76 | [VINCI Energies](https://www.tamtam.ai/c/vinci-energies) (vinci-energies.com)<br>Contributes to environmental transition by implementing customized multi-technical solutions from design to maintenance, enhancing infrastructure reliability, efficiency, and sustainability for energy and digital sectors. | IT Services and IT Consulting | 🇫🇷 Nanterre | 25,848 |  |
| 77 | [Capita](https://www.tamtam.ai/c/capita) (capita.com)<br>A leading provider of business services using data, technology, and people to simplify connections between governments, citizens, businesses, and customers | IT Services and IT Consulting | 🇬🇧 London | 25,581 | 1984 |
| 78 | [Bosch Global Software Technologies](https://www.tamtam.ai/c/bosch-global-software-technologies) (bosch-softwaretechnologies.com)<br>Providing comprehensive IoT solutions integrating sensors, software, and services to help businesses digitally transform products and processes worldwide. | Software Development | 🇮🇳 Bengaluru | 25,365 | 1997 |
| 79 | [Contax S.A.](https://www.tamtam.ai/c/contax-s-a) (contax.com.br)<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 | IT Services and IT Consulting | 🇧🇷 São Paulo | 25,342 |  |
| 80 | [Wipro Ltd. - India](https://www.tamtam.ai/c/wipro-ltd-india) (wipro.com)<br>A leading provider of IT services leveraging technology solutions to enable business transformation, aligning IT strategies with business goals | IT Services and IT Consulting | 🇮🇳 Bengaluru | 24,515 | 1945 |
| 81 | [NTT DATA North America](https://www.tamtam.ai/c/ntt-data-north-america) (us.nttdata.com)<br>provides business and technology consulting, data and AI solutions, application development, infrastructure management, and industry-specific services globally | IT Services and IT Consulting | 🇺🇸 Plano | 24,414 |  |
| 82 | [Stefanini Group](https://www.tamtam.ai/c/stefanini-group) (stefanini.com)<br>A global company offering a wide range of innovative services such as automation, cloud, IoT, UX, AI, consulting, and marketing solutions | IT Services and IT Consulting | 🇧🇷 São Paulo | 24,358 |  |
| 83 | [Publicis Sapient](https://www.tamtam.ai/c/publicis-sapient) (publicissapient.com)<br>A digital business transformation partner, specializing in strategy, product, experience, engineering, data, and delivering impactful solutions to global organizations | Business Consulting and Services | 🇺🇸 Boston | 24,251 |  |
| 84 | [Firstsource](https://www.tamtam.ai/c/firstsource) (firstsource.com)<br>Providing specialized business process services with advanced technology and analytics to clients in healthcare, finance, media, retail, and utilities sectors globally. | Outsourcing and Offshoring Consulting | 🇮🇳 Mumbai | 24,051 | 2001 |
| 85 | [Amadeus](https://www.tamtam.ai/c/amadeus) (amadeus.com)<br>A company revolutionizing the travel industry by inspiring innovation, partnerships, and responsibility, connecting the travel ecosystem and promoting social and environmental good | IT Services and IT Consulting | 🇪🇸 Madrid | 23,625 | 1987 |
| 86 | [AlmavivA Experience](https://www.tamtam.ai/c/almaviva-experience) (almavivaexperience.com.br)<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 | IT Services and IT Consulting | 🇧🇷 São Paulo | 23,587 |  |
| 87 | [Unisys](https://www.tamtam.ai/c/unisys) (unisys.com)<br>A global technology solutions company offering digital workplace, cloud, applications & infrastructure, enterprise computing, and business process solutions to empower organizations | IT Services and IT Consulting | 🇺🇸 Blue Bell | 23,358 |  |
| 88 | [Infosys Limited](https://www.tamtam.ai/c/infosys-limited)<br>A company based in Bengaluru, India, specializing in IT services and consulting | IT Services and IT Consulting | 🇮🇳 Bengaluru | 23,091 |  |
| 89 | [ST ENGINEERING AEROSPACE LTD.](https://www.tamtam.ai/c/st-engineering) (stengg.com)<br>application of technology and innovation to solve real-world problems, focusing on defence, engineering, and improving quality of life globally. | Industrial Machinery Manufacturing | 🇸🇬 Singapore | 23,000 | 1967 |
| 90 | [VXI Global Solutions](https://www.tamtam.ai/c/vxi-global-solutions) (vxi.com)<br>BPO leader offering customer service & digital solutions worldwide, with focus on omni-channel support, automation, & revenue generation for top brands | Outsourcing and Offshoring Consulting | 🇺🇸 Los Angeles | 22,830 |  |
| 91 | [Nagarro](https://www.tamtam.ai/c/nagarro) (nagarro.com)<br>Innovative digital engineering company guiding clients to embrace human-centric, digital-first strategies for responsive, efficient, creative, and sustainable business growth | IT Services and IT Consulting | 🇩🇪 Munich | 22,553 |  |
| 92 | [CACI International Inc](https://www.tamtam.ai/c/caci-international-inc) (caci.com)<br>providing advanced technology and expert services to address complex national security challenges for government and defense sectors | Defense and Space Manufacturing | 🇺🇸 Reston | 22,223 | 1962 |
| 93 | [Startek](https://www.tamtam.ai/c/startek) (startek.com)<br>A global CX management solutions provider offering omnichannel services, digital transformation, and enterprise tech services to leading brands worldwide | Outsourcing and Offshoring Consulting | 🇺🇸 Denver | 22,127 |  |
| 94 | [Telkom Indonesia](https://www.tamtam.ai/c/telkom-indonesia) (telkom.co.id)<br>A state-owned telecommunications enterprise in Indonesia focusing on digital transformation, customer-oriented strategies, and adapting to technology advancements in the industry | Telecommunications | 🇮🇩 Jakarta | 21,977 |  |
| 95 | [TCS](https://www.tamtam.ai/c/tcs-brownsburg)<br>A full lifecycle IT professional services and software firm in Brownsburg, IN, offering tailored solutions and managed services for optimized technology investments | IT Services and IT Consulting | 🇺🇸 Brownsburg | 21,901 |  |
| 96 | [Access Healthcare](https://www.tamtam.ai/c/access-healthcare-dallas) (accesshealthcare.com)<br>Access Healthcare provides business process outsourcing, application services, and robotic process automation tools to healthcare providers, improving revenue cycle with global delivery and technology | Hospitals and Health Care | 🇺🇸 Dallas | 21,863 | 2011 |
| 97 | [Inetum](https://www.tamtam.ai/c/inetum) (inetum.com)<br>European digital services leader helping businesses, public sector, and society with digital impact, performance, and innovation, partnering with major software publishers. | IT Services and IT Consulting | 🇫🇷 Saint-Ouen | 21,788 | 1970 |
| 98 | [Quest Global](https://www.tamtam.ai/c/quest-global) (questglobal.com)<br>Provides comprehensive engineering solutions across multiple industries, leveraging global expertise and digital technologies to solve complex challenges. | Engineering Services | 🇸🇬 Singapore | 21,161 |  |
| 99 | [LTI - Larsen & Toubro Infotech](https://www.tamtam.ai/c/lti-larsen-and-toubro-infotech) (lntinfotech.com)<br>A company that helps businesses move forward quickly by combining forces and leveraging innovative methods Stay updated via their LinkedIn | IT Services and IT Consulting | 🇮🇳 Mumbai | 21,045 |  |
| 100 | [VOIS](https://www.tamtam.ai/c/vois) (voiscentre.com)<br>Global strategic arm of Vodafone, creating value and efficiency across 28 countries through talent, technology, and transformation for business outcomes | IT Services and IT Consulting | 🇬🇧 London | 20,863 |  |

## 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 the world

- [The largest companies in the world](https://www.tamtam.ai/l/largest-companies-in-the-world) (415,122)
- [Multinational companies in the world](https://www.tamtam.ai/l/multinational-companies-in-the-world) (74,925)
- [Manufacturers in the world](https://www.tamtam.ai/l/manufacturers-in-the-world) (39,579)
- [Retail chains in the world](https://www.tamtam.ai/l/retail-chains-in-the-world) (35,499)
- [Companies with in-house R&D in the world](https://www.tamtam.ai/l/r-and-d-companies-in-the-world) (34,346)
- [Financial services firms in the world](https://www.tamtam.ai/l/financial-services-firms-in-the-world) (26,817)
- [Professional services firms in the world](https://www.tamtam.ai/l/professional-services-firms-in-the-world) (24,737)
- [Education providers in the world](https://www.tamtam.ai/l/education-companies-in-the-world) (23,937)
- [IT Services and IT Consulting companies in the world](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-in-the-world) (23,571)
- [Critical infrastructure operators in the world](https://www.tamtam.ai/l/critical-infrastructure-operators-in-the-world) (23,312)
- [SaaS companies in the world](https://www.tamtam.ai/l/saas-companies-in-the-world) (22,459)
- [Software Development companies in the world](https://www.tamtam.ai/l/software-development-companies-in-the-world) (20,534)
- [Hardware manufacturers in the world](https://www.tamtam.ai/l/hardware-companies-in-the-world) (20,159)
- [Financial Services companies in the world](https://www.tamtam.ai/l/financial-services-companies-in-the-world) (19,958)
- [Companies with a mobile app in the world](https://www.tamtam.ai/l/companies-with-mobile-app-in-the-world) (18,922)
- [Public sector organisations in the world](https://www.tamtam.ai/l/public-sector-organisations-in-the-world) (18,493)
- [Healthcare providers in the world](https://www.tamtam.ai/l/healthcare-providers-in-the-world) (16,037)
- [Consulting firms in the world](https://www.tamtam.ai/l/consulting-firms-in-the-world) (16,009)
- [Family-owned companies in the world](https://www.tamtam.ai/l/family-owned-companies-in-the-world) (14,667)
- [Distributors and wholesalers in the world](https://www.tamtam.ai/l/distributors-and-wholesalers-in-the-world) (13,470)
- [Hospitals and Health Care companies in the world](https://www.tamtam.ai/l/hospitals-and-health-care-companies-in-the-world) (12,916)
- [Corporate groups and holding companies in the world](https://www.tamtam.ai/l/holding-companies-in-the-world) (12,864)
- [E-commerce companies in the world](https://www.tamtam.ai/l/ecommerce-companies-in-the-world) (12,013)
- [Higher Education companies in the world](https://www.tamtam.ai/l/higher-education-companies-in-the-world) (11,756)

## The same list elsewhere

- [IT services companies in Europe](https://www.tamtam.ai/l/it-services-companies-in-europe) (11,376)
- [IT services companies in the United States](https://www.tamtam.ai/l/it-services-companies-united-states) (5,818)
- [IT services companies in France](https://www.tamtam.ai/l/it-services-companies-france) (5,000)
- [IT services companies in Asia](https://www.tamtam.ai/l/it-services-companies-in-asia) (1,941)
- [IT services companies in the United Kingdom](https://www.tamtam.ai/l/it-services-companies-united-kingdom) (1,583)
- [IT services companies in India](https://www.tamtam.ai/l/it-services-companies-india) (1,352)
- [IT services companies in Germany](https://www.tamtam.ai/l/it-services-companies-germany) (776)
- [IT services companies in Latin America](https://www.tamtam.ai/l/it-services-companies-in-latin-america) (688)
- [IT services companies in the Netherlands](https://www.tamtam.ai/l/it-services-companies-netherlands) (585)
- [IT services companies in Belgium](https://www.tamtam.ai/l/it-services-companies-belgium) (551)
- [IT services companies in Italy](https://www.tamtam.ai/l/it-services-companies-italy) (499)
- [IT services companies in Spain](https://www.tamtam.ai/l/it-services-companies-spain) (484)
- [IT services companies in Switzerland](https://www.tamtam.ai/l/it-services-companies-switzerland) (438)
- [IT services companies in Brazil](https://www.tamtam.ai/l/it-services-companies-brazil) (385)
- [IT services companies in Canada](https://www.tamtam.ai/l/it-services-companies-canada) (331)
- [IT services companies in the Middle East](https://www.tamtam.ai/l/it-services-companies-in-the-middle-east) (319)
- [IT services companies in Africa](https://www.tamtam.ai/l/it-services-companies-in-africa) (312)
- [IT services companies in Poland](https://www.tamtam.ai/l/it-services-companies-poland) (312)
- [IT services companies in Sweden](https://www.tamtam.ai/l/it-services-companies-sweden) (155)
- [IT services companies in Australia](https://www.tamtam.ai/l/it-services-companies-australia) (129)
- [IT services companies in Portugal](https://www.tamtam.ai/l/it-services-companies-portugal) (128)
- [IT services companies in Egypt](https://www.tamtam.ai/l/it-services-companies-egypt) (115)
- [IT services companies in Denmark](https://www.tamtam.ai/l/it-services-companies-denmark) (102)
- [IT services companies in Indonesia](https://www.tamtam.ai/l/it-services-companies-indonesia) (100)

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Source: https://www.tamtam.ai/l/it-services-companies-in-the-world