| Title | Country |
| Thoughtline Technologies Pvt. Ltd., Illinois | United States |
| Mindteck, Illinois | United States |
| Persistent Systems Pvt Ltd, Illinois | United States |
| India Comnet Internationa, Illinois | United States |
| Focal3 Software Pvt. Ltd., Ilford | United Kingdom |
| Hewitt Associates, Inc., Illinois | United States |
| I T G Solutions Ltd, Illinois | United States |
| LexisNexis, Illinois | United States |
| Terrenos Software Technologies, Illinois | United States |
|
| Nokia Siemens Networks, Illinois | United States |
| Infor Global Solutions, Illinois | United States |
| Attachmate, Illinois | United States |
| Microchip Technology Inc., Illinois | United States |
| GigaByte Technology Co., Ltd., Illinois | United States |
| Xilinx, Inc, Illinois | United States |
| Verinon Technology Solutions Ltd, Illinois | United States |
| Integra Software Services Pvt. Ltd., Illinois | United States |
| PreludeSys, Illinois | United States |
|
| Huawei Technologies Co., Ltd., Illinois | United States |
| Smartsys Innovative Technologies, Illinois | United States |
| CMC Limited, Illinois | United States |
| CCS Technologies (P) Ltd, Illinois | United States |
| International Software Services, Illinois | United States |
|
| Focal3 Software Pvt Ltd, ILFORD | United Kingdom |
| Sierra ODC (P) Limited, Illinios | United States |
| Metis Technologies Private Limited, Illinios | United States |
| Pivotix Inc., Ilinois | United States |
| Idexcel Inc, Illinois | United States |
| Brocade Communications Systems Pvt Ltd, Illinois | United States |
| Cisco Systems, Inc., Illinois | United States |
| Collabera Enterprise Software Solutions Pvt Ltd, Illinois | United States |
| L&T Infotech, Illinois | United States |
| CAC Softwares, Illinois | United States |
| Gujarat Infotech Limited, IL | United States |
| CTS Corporation, Illinois | United States |
| zen cybertech, Illinois | United States |
| Cimnet Systems Inc., ILLINOIS | United States |
| Global Consultants, Inc., Illinois | United States |
| Compuware Corporation, Illinois | United States |
| Srishti Softech (P) Ltd., Illinois | United States |
| Citrix Systems, Inc, Illinois | United States |
| Ciber, Inc., Illinois | United States |
| Future Focus Infotech Pvt Ltd., Illinois | United States |
| Caliber Point Business Solutions, Illinois | United States |
| Mascon Global Ltd, Illinois | United States |
| SourceHOV, Illinois | United States |
| Lance Soft Inc., Illinois | United States |
| Goldstone Technologies, Illinois | United States |
| Sysmix, Ilford | United Kingdom |
| Onward Technologies Limited, Illinois | United States |