| Abbreviation | Definition |
|---|---|
| CSI | Consultancy Sourcing and Implementation |
| CSI | consumer safety inspector |
| CSI | Customer Satisfaction Index |
| CSI | Customer Satisfaction Indexing |
| CSI | Customer Service Index |
| CSI | Customer Support Identifier |
| CSIPR | Customer Satisfaction Index of Puerto Rico |
| CSL | Canadian Special Listing |
| CSL | Central Side Logos |
| CSL | Combined Single Limit |
| CSL | Consumer Survey List |
| CSL | Croya Service And Leadership |
| CSM | Communications Sponsorship And Marketing |
| CSM | Component And Supplier Management |
| CSM | Corporate Sustainability Management |
| CSM | Customer Service Manager |
| CSM | Customer Support Manager |
| CSN | Customer Services Network |
| CSP | Cable Service Provider |
| CSP | Commerce Service Provider |