| 3 Edge Technologies | |
| 3 Minds Digital | |
| 3 Steps Ahead Technology | |
| 3 Way Technologies | Gujarat |
| 300Mind | |
| 30TH FEB | |
| 31rainfall interactive | Tamil Nadu |
| 32bytes | West Bengal |
| 360 Degree Cloud Technologies Pvt Ltd | Haryana |
| 360 Degree Technosoft | Gujarat |
| 360 Digital Catalyst Pvt Ltd | |
| 360 Website Designing | Karnataka |
| 360degreeinfo Pvt Ltd | |
| 360Logica.com | Uttar Pradesh |
| 360pano VR Solutions Pvt Ltd | Haryana |
| 360SMS.com | Maharashtra |
| 365Build Technologies (I) Pvt Ltd | Karnataka |
| 3Aces Technologies | Karnataka |
| 3Alpha DataEntry Services | Gujarat |
| 3B BlackBio Biotech India Ltd | |
| 3Brain Technolabs | |
| 3Brain Technologies | Gujarat |
| 3C Brand Hub | |
| 3d Fuzion | |
| 3D Product Development Pvt Ltd | |
| 3dee Technologies | Punjab |
| 3DM | Telangana |
| 3Elixir Solutions | |
| 3G Logic Infotech Pvt Ltd | Uttar Pradesh |
| 3G Tech Solutions | |
| 3i Infotech | Maharashtra |
| 3i Planet | Rajasthan |
| 3I Web Solutions | |
| 3i Webexperts Pvt Ltd | |
| 3iZone | Maharashtra |
| 3kits | Telangana |
| 3MenStudio | Gujarat |
| 3MenStudio | |
| 3one4 Capital | Karnataka |
| 3P Web | Tamil Nadu |
| 3rd Digital | Gujarat |
| 3S Industries | Maharashtra |
| 3S IT Services | |
| 3SD Solutions | Odisha |
| 3Sixty Street Software Solution Pvt Ltd | |
| 3Sixty Street Software Solution Pvt Ltd | |
| 3Square Marketing | |
| 3Tier Websol | |
| 4 Media Entertainment | |
| 404DM | |