| Abbreviation | Definition |
|---|---|
| CIGI | Consolidated Industrial Gases Inc. |
| CIGNA | Connecticut General Life Insurance Company (CG) and the Insurance Company of North America (INA) |
| CII | Celebrations India, Inc. |
| CII | Chidambarams India, Inc. |
| CII | Chidambaram's India, Inc. |
| CII | Communication Integrators Inc |
| CII | Confederation of Indian Industries |
| CII | Confederation of Indian Industry |
| CII | Cybernetic Industries Incorporated |
| CIIB | Cayman Islands Investment Bureau |
| CIIC | Caspian International Investment Company |
| CIIC | China International Intellectech Corp |
| CIIC | China International Intellectech Corporation |
| CIIC | Cook Islands Investment Corporation |
| CIIE | Centre for Innovation Incubation and Entrepreneurship |
| CIIE | Centre for Innovation Incubation entrepreneurship |
| CIIF | Community Investment And Inclusion Fund |
| CIIF | Creative Industries Incentive Fund |
| CIIN | Creative Industries Incentive Network |
| CIL | Canadian Industries Limited |