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Tata Consultancy Services

Don Callahan

Natarajan Chandrasekaran

dk subramanian

Board Member at Tata Consultancy Services

Keki M Mistry

Natarajan Ganapathy Subramaniam

Rajesh Gopinathan

CEO and Managing Director of Tata Consultancy Services

Accenture

Multinational management consulting, technology services and outsourcing company

Infosys

Wipro

Software company based in Bangalore, Karnataka, India

HCL Technologies

Software company based in Noida, Uttar Pradesh, India

Reliance Industries

Tech Mahindra

Software company based in Pune, Maharashtra, India

Satyam Computer Services

iGATE Patni

Apple

American multinational technology company

Microsoft

American multinational technology corporation

General Electric

Citigroup

American investment bank and financial services corporation

British multinational oil and gas company

British Airways

Flag carrier airline of the United Kingdom

Transport for London

Local government body responsible for the transport system in Greater London

Virgin Atlantic

Marks & Spencer

Avianca

Nokia

Finnish multinational telecommunications and information technology company

Swedish-Swiss robotics and electrical equipment company

Walgreens Boots Alliance

Standard Bank

One of South Africa's largest financial services groups

Bharat Sanchar Nigam

Diageo

Boots

National Grid

British multinational electricity and gas utility company

Fiat Chrysler Automobiles

Italian-American multinational automotive manufacturing (2014-2021)

ABN AMRO Bank

Telenor

Nationwide Building Society

Bank based in Swindon, Staffordshire, United Kingdom

TAP Air Portugal

NETS

Singaporean electronic payment service provider

Transport company based in Stockholm, Stockholm County, Sweden

Rail Delivery Group

Transamerica

National Stock Exchange of India

Financial services company based in Mumbai, Maharashtra, India

Sapix Yozemi

Educational organization based in Tokyo, Tokyo Metropolis, Japan

Samsung India

Tata Consultancy Services Limited (TCS) is an Indian multinational information technology (IT) services and consulting company headquartered in Mumbai. It is a part of the Tata Group and operates in 150 locations across 46 countries. In September 2023, it was reported that TCS had over 616,000 employees worldwide. TCS is the second-largest Indian company by market capitalization, the most valuable IT service brands worldwide, and the top Big Tech (India) company. As of June 2023, it was the world's second-largest user of U.S. H-1B visas.

Software Consulting Firms

Software Companies

Jehangir Tata

TATA CONSULTANCY SERVICES LIMITED

Mumbai

India

Maharashtra

State in the western and central peninsular region of India

Mumbai Suburban district

London

Capital and largest city of England and the United Kingdom

United Kingdom

London commuter belt

Greater London

New York City

United States of America

Country primarily located in North America

New York metropolitan area

Most populous metropolitan area in the United States

New York

Kings County

Edison

New Jersey

Middlesex County

Oslo

Norway

Chennai

City and state capital of Tamil Nadu, India

Tamil Nadu

Chennai district

Riyadh

Saudi Arabia

Riyadh Province

Ar-Riyad Governorate

Kuala Lumpur

Federal territory and capital city of Malaysia

Malaysia

Sharonville

City in Hamilton County, Ohio, United States

Ohio

Hamilton County

Noida

Uttar Pradesh

Gautam Buddh Nagar district

Telangana

Thane

Thane district

Valparaíso

Chile

Valparaíso Region

Valparaíso Province

Puteaux

France

Hauts-de-Seine

Zapopan

Mexico

Jalisco

Zapopan Municipality

Norwich

Norfolk

Singapore

Sovereign island country and city-state in maritime Southeast Asia

Jamshedpur

Jharkhand

East Singhbhum district

Bloomington

City in Hennepin County, Minnesota, United States

Minneapolis–Saint Paul

Metropolitan area in Minnesota, United States

Minnesota

Hennepin County

Concepción

Biobío Region

Concepción Province

Stockholm

Sweden

Stockholm County

Stockholm Municipality

Montevideo

Uruguay

Montevideo Department

Municipio D

Barueri

Brazilian city in the state of São Paulo

Brazil

São Paulo

Barueri Municipality

Helsinki

Capital and most populous city of Finland

Finland

Uusimaa

Helsinki Sub-Region

Naperville

City in DuPage and Will counties in Illinois, United States

Chicago metropolitan area

Illinois

DuPage County

City of Brussels

Belgium

Flemish Brabant

Arrondissement of Halle-Vilvoorde

Munich

Capital and most populous city of Bavaria, Germany

Germany

Bavaria

München

Bogotá

Colombia

Bogotá, D.C.

Makati

Highly urbanized city in Metro Manila, Philippines

Philippines

Metro Manila

Metropolitan area and region of the Philippines

Phoenix

City in Maricopa County, Arizona, United States

Phoenix metropolitan area

Metropolitan area in Arizona, United States

Arizona

Maricopa County

Budapest

Hungary

Delhi

Indian metropolis that includes New Delhi

South West Delhi District

Mexico City

Ciudad de México

Benito Juárez Municipality

Tampere

City in the region of Pirkanmaa in Finland

Pirkanmaa

Tampere Sub-Region

Thiruvananthapuram

City in southern India; the capital of Kerala

Kerala

Information technology consulting company

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