| Children and Youth Foundation of Phil. |
| Children's Hour Secretariat |
| Chinese Filipino Business Club |
| Chinese Monk |
| Chinsu - Cavite |
| Chong Hua Hospital - Cebu |
| Christine Enterprises - Cebu |
| CIBO Inc |
| Cinema 2000 Festival Cinemas |
| Circuit Solutions, Inc. |
| Circuits & Beads - Cagayan de Oro |
| Cisco |
| Citibank, N.A. |
| City Savings Bank - Cebu |
| City Sports Club Cebu, Inc |
| Civil Service Commission |
| CL Manabat and Company |
| Clark Development Corporation - Pampanga |
| Clark Premier Industrial Park - Pampanga |
| Clark Water Corp. - Pampanga |
| Clean Flo Phils. |
| CLSA Exchange Capital, Inc. (Jardine Fleming Exchange Capital Securities, Inc.) |
| Coam Philippines Ink - Pampanga |
| Coca Cola Foundation |
| Colegio De San Juan De Letran-Calamba |
| Colegio San Agustin (Makati) |
| Collage-Cocoon Trading Co. - Cebu |
| Collezione C2 - Cebu |
| Colorstone - Cebu |
| Colours Foto Shop - Cebu |
| Columbia Tower Association |
| COMFAC Corp. |
| Commodity Carriers & Shipping Corp. |
| Commonwealth Estates, Inc. - Cebu |
| Community Foundation of Oaxaca, Mexico |
| Community Innovations |
| Concepcion Industries |
| Concrete Solutions, Inc. - Cebu |
| Confederation of Sugar Prod Associations - Western Visayas |
| Congress of Visayan Organizations |
| Constantino Guadalquiver & Co. |
| Constellation Travels Inc. |
| Consuelo Foundation |
| Continental Milling Corp. |
| Cordym Phils. Inc/Tours & Travels Inc. |
| Corinthian Commercial Corp |
| Corinthian Industrial Property Inc |
| Corporate Air, Inc. |
| Corporate Executive Search |
| Cosmopolitan Realty Corp |
