| Citation Style Language | Academic & Science |
| C Scripting Language | Academic & Science |
| Coordinated Science Lab | Academic & Science |
| Colorado State Library | Academic & Science |
| Crosshole Sonic Logging | Academic & Science |
| Columbus School of Law | Academic & Science |
| Computer Science Laboratory | Academic & Science |
| Computerized Speech Lab | Academic & Science |
| San Luis Obispo (ca) | Airport Code |
| Combined Single Limit | Business |
| Control Shipment Level | Business |
| Carlisle Companies, Inc. | Business |
| Canadian Special Listing | Business |
| C Summerfield Ltd | Business |
| Consumer Survey List | Business |
| Croya Service And Leadership | Business |
| Cochin Shipyard Ltd | Business |
| Canada Steamship Line | Business |
| Context Sensitive Language | Business |
| Central Side Logos | Business |
| Commonwealth Serum Laboratories | Business |
| Contaminant Source Location | Chemistry |
| Center for Services Leadership | Community |
| Center for Service and Learning | Community |
| Community Supporting Lobstermen | Community |
| Community Service Learning | Community |
| Conservation South Luangwa | Community |
| Center for STEM Learning | Community |
| Community Services League | Community |
| Center for the Study of Learning | Community |
| Cross Street Location | Community |
| Curse and Swear Loudly | Computer Assembly Language |
| Computer Systems Lab | Computing |
| Computer Supported Learning | Computing |
| Configuration Specific Language | Computing |
| Common Shapes Library | Computing |
| Computer Science Logic | Computing |
| Caml Special Light | Computing |
| Current Sinking Logic | Computing |
| Communications Server for Linux | Computing |
| Call Support Layer | Computing |
| Contributed Software Library | Computing |
| Cyber Security Law | Computing |
| Control and Simulation Language | Computing |
| Chip Specific Library | Computing |
| Configuration Specification Language | Computing |
| Colortronic Smart Load | Electronics |
| Current-steering Logic | Electronics |
| Commitment Service and Loyalty | General |
| Centers for Spiritual Living | General |
| Creative Systems Lighting | General |
| Center for Spiritual Living | General |
| Center for Sustainable Landscapes | General |
| Confederated Starcraft League | General |
| Collegiate Starcraft League | General |
| Chicago Stats League | General |
| Colorado State | General |
| Clean Safe Living | General |
| Cat Sophia and Lauren | General |
| Customer Service Level | General |
| Charter Seat License | General |
| Chiral Spin Liquid | General |
| Consolidated Screening List | General |
| Chaucer Syndicates Limited | General |
| Construction Specialists Ltd | General |
| Coupe Sports Lightweight | General |
| Child Safety Lock | General |
| Carroll Shelby Licensing | General |
| Changeable Speed Limit | General |
| Club Seat Leon | General |
| Centro Stile Lamborghini | General |
| Club Sport Lightweight | General |
| Corn Steep Liquor | General |
| California State Library | Governmental |
| Coupe Sport Lightweight | Governmental |
| Central Secretariat Library | Indian Ministry of Culture |
| Chin Shang Li | International |
| Chattanooga Sports Leagues | Internet |
| Can't Stop Laughing | Internet |
| Coincidence Site Lattice | Maths |
| Cosplay Stage Laboratory | Medical |
| Coordinated Science Laboratory | Medical |
| Central Science Laboratory | Medical |
| Canada Steamship Lines | Messaging |
| Combat Stores List | Military and Defence |
| Cooperative Security Location | Military and Defence |
| Center for Strategic Leadership | Military and Defence |
| Cochin Shipyard Limited | Miniratna Central Public Sector Enterprise |
| Corrupt Serveradmin Ladder | Networking |
| San Luis Obispo, California USA | Regional |
| Chicago Short Line Railway Company | Regional |
| Coastal Star Light | Regional |
| Chicago Short Line Railway | Regional |
| Chinese Sign Language | Regional |
| Command Signal Limiter | Space Science |
| Computer Status Light | Space Science |
| Crew Systems Laboratory | Space Science |
| Cumulative Score List | Sports |
| Chinaren Skill Level | Sports |
| Club Sports Lightweight | Sports |
| Cincinnati Sports Leagues | Sports |
| Colonial Swimming League | Sports |
| Coast Soccer League | Sports |
| Cosmopolitan Soccer League | Sports |
| Coupe Sport Leichtbau | Sports |
| Coupe Sport Lightwight | Sports |
| Chinese Super League | Sports & Games |
| Computer Servo Lock | Technology |
| Communication Services Limited | Telecommunication |
| Create A Simple Life | Telecommunication |
