| Title | Country |
| Relyon Softech Ltd, Kolkata | India |
| Future Focus Infotech Pvt Ltd., Kolkata | India |
| R.P. Infosystems Pvt. Ltd., Kolkata | India |
| AVVAS INFOTECH PVT LTD, Kolkata | India |
| Dimension Data, Kolkata | India |
| Kochar Infotech Pvt Ltd, Kolkata | India |
| Nelito Systems Limited, Kolkata | India |
| Data-Core (India) Pvt. Ltd, Kolkata | India |
| Xoriant Solutions Pvt Ltd, Kolkata | India |
|
| Tally Solutions Pvt. Ltd., Kolkata | India |
| Omnesys Technologies Pvt Ltd, Kolkata | India |
| Unisoft Infotech Pvt Ltd, Kolkata | India |
| Tejas Networks, Kolkata | India |
| Atos Origin, Kolkata | India |
| Ingram Micro India Ltd, Kolkata | India |
| Babelwiz Technology Solution, Kolkata | India |
| Quadra Software Solutions Pvt. Ltd, Kolkata | India |
| Hewitt Associates, Inc., Kolkata | India |
|
| Rashi Peripherals Pvt. Ltd., Kolkata | India |
| Galaxy Info System, Kolkata | India |
| Infokall Enterprise Solutions Ltd, Kolkata | India |
| Digicomp Complete Solutions Limited, Kolkata | India |
| Aptech Limited, Kolkata | India |
|
| CMS Infosystems Pvt. Ltd., Kolkata | India |
| ASUS Technology Pvt. Ltd, Kolkata | India |
| Quick Heal Technologies (P) Ltd., Kolkata | India |
| Xerox Corporation, Kolkata | India |
| Priya Limited, Kolkata | India |
| Neoteric Infomatique Ltd., Kolkata | India |
| iGate Global Solutions Ltd, Kolkata | India |
| Devraj Computers (P) Limited, Kolkata | India |
| Avnet Technology Solutions (India) Pvt. Ltd., Kolkata | India |
| IL&FS Technologies Limited, Kolkata | India |
| Epson India Pvt Ltd., Kolkata | India |
| Tulip Telecom, Kolkata | India |
| D-Link India Limited, Kolkata | India |
| Pitney Bowes, Kolkata | India |
| Datacraft Asia Pte Ltd., Kolkata | India |
| CastleRockResearch Information Pvt. Ltd., Kolkata | India |
| Landis Gyr, Kolkata | India |
| Moserbaer, Kolkata | India |
| Hewlett Packard (HP), Kolkata | India |
| Sellcraft Softech Pvt. Ltd, Kolkata | India |
| Nokia Corporation, Kolkata | India |
| GeneXHunt Staffing Solutions Pvt. Ltd., Kolkata | India |
| Intellicon India Pvt. Ltd., Kolkata | India |
| TSG Global Services Private Limited, Kolkata | India |
| DynPro India Pvt Ltd,, Kolkata | India |
| Endroit Technologies Pvt Ltd, KOLKATA | India |
| Launchwindows Pvt. Ltd., Kolkata | India |