| cKinetics | Delhi |
| ClairViz | Maharashtra |
| ClanConnect | Delhi |
| Clappia | Karnataka |
| Clarion IT Pvt Ltd | Chhattisgarh |
| Clarion Technologies | Maharashtra |
| Clarisco Solutions Pvt Ltd | |
| Claritiz Innovations Pvt Ltd | |
| CLARO Energy Ltd | |
| ClassHose Group | |
| Classic Informatics | Haryana |
| Classic Web Designs | Tamil Nadu |
| Classudo Technologies | |
| Clayfin | Tamil Nadu |
| Claymind Solutions Pvt Ltd | |
| CleanCoders | |
| CleanMax Enviro Energy Solutions Ltd | |
| ClearFeed | Karnataka |
| Clearpath Technology Pvt Ltd | Delhi |
| Cleartax | Karnataka |
| ClearTouch | Tamil Nadu |
| Cleartrip Pvt Ltd | |
| Clematis Technology Solutions India Pvt Ltd | Telangana |
| Cleonix Technologies Pvt Ltd | |
| Clever Studio | |
| Cleverise | |
| Clevertize | Karnataka |
| Click Ace | |
| Click400 Technologies Pvt Ltd | |
| ClickBaitz Agency | |
| ClickBit | |
| ClickBiz | |
| Clickbox Digital Marketing Agency | |
| ClickBySEO (Digital Marketing Company) | Bihar |
| ClicknTech Pvt Ltd | |
| Clickpick Media Pvt Ltd | |
| ClickPost | |
| ClickRetina | Uttar Pradesh |
| ClicksYou | Uttar Pradesh |
| ClickZap IT Pvt Ltd | |
| Clients Now | |
| ClientsFirstIT | Rajasthan |
| Clikionz Software Solutions | |
| Climate Collective Foundation | |
| Climate Startup Week | Maharashtra |
| Climbax Entertainment Pvt Ltd | Delhi |
| Cling Multi Solutions Pvt Ltd | |
| Clinion | Telangana |
| Cliniqally | Karnataka |
| Clinnex Research Pvt Ltd | Gujarat |