IT or, Information technology company mean a who provides a solid foundation for businesses to conduct daily operations, enhance their company communications, increase workplace productivity, and provide a layer of security for confidential data. IT companies sell services surrounding software and/or hardware, its services might be basic VAR/integrator activities, or they might be complex implementations of multiple pieces to accomplish some goal set by their customer,

Here on your demand I am giving below name of Indian IT companies
Tata Consultancy Services

Infosys
Wipro
HCL Technologies
Tech Mahindra
Oracle Financial Services Software Mumbai
Mindtree Bangalore
Mphasis Bangalore
Hexaware Technologies Navi Mumbai
Tata Elxsi Bangalore
3i Infotech
Mumbai
Accel Frontline
Chennai Aditi Technologies[6]
Bangalore
Adrenalin eSystems
Chennai
Aftek
Mumbai
Algoworks
Noida
Atom Technologies
Mumbai
BirlaSoft
Noida
Blue Star Infotech
Mumbai
C-DAC
Pune
CMC Limited
New Delhi
Cognizant
Teaneck, New Jersey
Computer Sciences Corporation
Falls Church, Virginia
Cybage
Pune
Cyient
Hyderabad
Cynapse
Mumbai
Datamatics Global Services
Mumbai
Eclerx
Mumbai
Exilant Technologies
Bangalore
Experion technologies
Thiruvananthapuram
Firstsource
Mumbai
Flytxt Mobile Solutions
Amsterdam
Fulcrum Worldwide
Mumbai
Geometric Limited
Mumbai
Godrej Infotech Ltd
Mumbai
Happiest Minds Technologies
Bangalore
Harbinger Systems
Pune
Honeywell
Morris Plains, New Jersey
HSBC GLT India
Pune
IGATE
Bridgewater Township, New Jersey
Impetus Technologies
Los Gatos, California
Indusface
Vadodara
Infinite Computer Solutions
Bangalore
InfoBeans
Indore

Intellect Design
Chennai
KPIT Technologies
Pune
Larsen & Toubro Infotech
Mumbai



Mastek
Mumbai

Melstar Information Technologies
Mumbai
Microland
Bangalore
Micromax Mobile
Gurgaon
Microsoft India PL
Hyderabad
Mindfire Solutions
Bhubaneswar
Mindteck
Bangalore

Mistral Solutions
Bangalore
MobME
Kochi
Monsoon Multimedia
Noida
Nihilent
Pune
NIIT Technologies
Noida




Nucleus Software Exports Ltd.
Noida
NVISH
Santa Clara, California
Ocimum Bio Solutions
Hyderabad
Onward Technologies
Mumbai
Persistent Systems
Pune


Plivo
San Francisco
Polaris Financial Technology Limited
Chennai

Pramati Technologies
Hyderabad
Quest Global
Singapore

R Systems Ltd
Noida
Ramco Systems
Chennai

Rediff.com
Mumbai
Rolta India Ltd
Mumbai
Samsung India Software Center
Noida
Sankalp Semiconductor

Sasken
Bangalore


Sonata Software
Bangalore

SPAN Infotech (India) Pvt. Ltd.[10]
Bangalore
SunTec Business Solutions[11]
Thiruvananthapuram

Tata Interactive Systems
Mumbai
Tejas Networks
Bangalore
Thirdware
Mumbai
Thoughtworks
Bangalore




Trigent Software
Bangalore
UST Global
Aliso Viejo, California

Walkover Web Solutions
Indore
WNS Global Services
Mumbai

Xansa
Reading, Berkshire
Xerox[12]
Norwalk, Connecticut
Zensar Technologies
Pune

ZOHO Corporation
Pleasanton, California
Zenith Computers
Mumbai