| Abbreviation | Definition |
|---|---|
| CIPL | Corporate Infotech Pvt Ltd |
| CIPL | Cosmo Infomatics Pvt Ltd |
| CIPO | Cultural Integration Programs Officer |
| CIR | Calgary Independent Realty |
| CIRA | Cercle Investor Relations Austria |
| CIRA | Community Informatics Research and Applications |
| CIRA | Cyber Incident Response Assistance |
| CIRI | Cook Inlet Region Inc |
| CIRP | Consumer Intelligence Research Partners |
| CIS | Chase Information Systems |
| CIS | Chemical Information Systems, Inc. |
| CIS | Com Internet Services |
| CIS | Communication Information Systems |
| CISA | China Iron & Steel Association |
| CISA | Community Information Strategies Australia |
| CISA | Corporate Investment Strategic Alliance |
| CISC | Chongqing Iron and Steel Company |
| CISC | Creative Internet Solutions Consortium |
| CISCO | Computer Information System COmpany |
| CISM | Corporate Integrity System Malaysia |