TATA Consultancy Services Limited (TCS) is an Indian multinational information technology (IT) services and consulting company with its headquarters in Mumbai, Maharashtra. It is a part of the Tata Group and operates in 150 locations across 46 countries. In July 2022, it was reported that TCS had over 600,000 employees worldwide. TCS is the second largest Indian company by market capitalization and is among the most valuable IT service brands worldwide, and is the top Big Tech (India) company. In 2015, TCS was ranked 64th overall in the Forbes "World's Most Innovative Companies" ranking, making it one of the highest-ranked IT services companies and a top Indian company. As on Jun 2023, it is the world's 2nd largest IT employer.
Accenture plc is an Irish-American professional services company based in Dublin, specializing in information technology (IT) services and consulting. A Fortune Global 500 company, it reported revenues of $61.6 billion in 2022. Accenture's current clients include 91 of the Fortune Global 100 and more than three-quarters of the Fortune Global 500. As of 2022, Accenture is considered the largest consulting firm in the world by number of employees.
Logica plc was a multinational IT and management consultancy company headquartered in London and later Reading, United Kingdom.
Atos is a European multinational information technology (IT) service and consulting company with headquarters in Bezons, France, and offices worldwide. It specialises in hi-tech transactional services, unified communications, cloud, big data and cybersecurity services. Atos operates worldwide under the brands Atos, Atos|Syntel, Atos Consulting, Atos Healthcare, Atos Worldgrid, Groupe Bull, Canopy, Maven Wave, and Unify.
Areva S.A. is a French multinational group specializing in nuclear power headquartered in Courbevoie, France. Before its 2016 corporate restructuring, Areva was majority-owned by the French state through the French Alternative Energies and Atomic Energy Commission (54.37%), Banque publique d'investissement (3.32%), and Agence des participations de l'État (28.83%). Électricité de France, of which the French government has a majority ownership stake, owned 2.24%; Kuwait Investment Authority owned 4.82% as the second largest shareholder after the French state.
Capgemini SE is a multinational information technology (IT) services and consulting company, headquartered in Paris, France.
Capgemini Engineering is a global innovation and engineering consulting firm founded in 1982 in France by Alexis Kniazeff and Hubert Martigny. Altran operates primarily in high technology and innovation consultancy, which account for nearly 75% of its turnover. Administrative and information consultancy accounts for 20% of its turnover with strategy and management consulting making up the rest. The firm is active in most engineering domains, particularly electronics and IT technology. In 2018, Altran generated €2.916 billion in revenues and employed over 46,693 people around the world. Since 18 June 2015, Altran has been led by CEO Dominique Cerutti. Altran was acquired by Capgemini in 2019 and renamed as "Capgemini Engineering" on 8 April 2021, due to the merger with Capgemini's Engineering and R&D services.
CGI Inc. is a Canadian multinational information technology consulting and Software Development company headquartered in Montreal, Quebec, Canada. CGI went public in 1986 with a primary listing on the Toronto Stock Exchange. CGI is also a constituent of the S&P/TSX 60 and has a secondary listing on the New York Stock Exchange.
Sopra Steria is a European-based consulting, digital services, and software development company with 50,000 consultants. The company is headquartered in Paris and has operations in several countries in Western Europe.
Mphasis Limited is an Indian multinational information technology services and consulting company based in Bengaluru. The company provides infrastructure technology and applications outsourcing services, as well as architecture guidance, application development and integration, and application management services. It serves financial services, telecom, logistics, and technology industries. Mphasis was ranked #7 in India IT companies and overall #189 by Fortune India 500 in 2019. In April 2016, Hewlett Packard Enterprise sold the majority of its stake in Mphasis to Blackstone Group LP for around US$1 billion.
ErgoGroup was a Nordic information technology corporation, systems integrator and consulting company headquartered in Oslo, Norway. The company provided services for IT operations, business solutions, outsourcing, infrastructure and consulting. ErgoGroup had a total of 90 offices and regional branches throughout Norway, Sweden and Finland, and was a subsidiary of Posten Norge, the Norwegian Postal Service. It was the second largest ICT operations company in Norway. The company also held partial ownership in SYSteam, TransWare, Gecko, Eiendomsverdi, Buypass, Eye-Share and Bekk Consulting. ErgoGroup merged with EDB Business Partner in 2010, creating EVRY.
NTT DATA Corporation is a Japanese multinational information technology (IT) service and consulting company headquartered in Tokyo, Japan. It is a partially-owned subsidiary of Nippon Telegraph and Telephone (NTT).
Electronic Data Systems (EDS) was an American multinational information technology equipment and services company headquartered in Plano, Texas, which was founded in 1962 by Ross Perot. The company was a subsidiary of General Motors from 1984 until it was spun off in 1996. EDS was acquired by Hewlett-Packard in 2008.
IGATE was an IT services company, headquartered in Bridgewater, New Jersey, United States. The firm operated in North America, Asia, Europe, Japan and Australia, providing technology consultancy and services. Its revenues in 2014 were over US$1.2 billion, and it has a workforce of over 31,000. The firm had over 70 offices and customer delivery centers in North America, Europe, Asia and Australia. On April 27, 2015 French IT services group Capgemini unveiled a deal to acquire IGATE for $4 billion.
Kanbay International, Inc. was an Indian-based global information technology (IT) services firm with approximately 6900 associates worldwide that later created a second Headquarters in the United States. Founded in 1989, the organization offered management consulting, technology integration, application development, and outsourcing strategies. Kanbay is now a division of Capgemini under the name Financial Services Strategic Business Unit (FS-SBU).
Open Cascade is an information technology company owned by Capgemini. Open Cascade provides services in the domain of scientific and technical computing and simulation tools.
Aon Hewitt was a provider of human capital and management consulting services headquartered in Lincolnshire, Illinois in the United States. From 500 offices in 120 countries, it provided consulting, outsourcing, and reinsurance brokerage services. The "Aon Hewitt" brand and legal entities have now been absorbed into the "Aon" business, leaving obsolete the names "Hewitt" and "Aon Hewitt."
Arcadis NV is a global design, engineering and management consulting company based in the Zuidas, Amsterdam, Netherlands. It currently operates in excess of 350 offices across 40 countries. The company is a member of the Next 150 index.
Infosys Consulting is a management consulting, IT consulting practice within the larger Infosys organization which works in strategy, IT transformation, change management and business analytics. Infosys Consulting operates globally and currently has offices in 18 countries across the Americas, Asia Pacific and Europe. The firm was officially launched in 2004 as a fully owned subsidiary of Infosys chaired by N. R. Narayana Murthy, one of the co-founders of Infosys. For quarter-end March, 2016 Infosys Consulting and Package Implementation were reported as 33.2% of the whole of Infosys' revenue, contributing to the reported earnings of 23 cents a share on revenue of $2.4 billion that December for Infosys.
