| Shurazen Software Pvt Ltd | |
| Shushraj Technologies | |
| Shyam Lal College | |
| Shyama Prasad Mukherjee Govt. Degree College | |
| ShyamNET | Kerala |
| Shyampur Siddheswari Mahavidyalaya | |
| SI Capital & Financial Services Ltd | Tamil Nadu |
| SI Global Solutions Pvt Ltd | |
| Siam Computing | Tamil Nadu |
| SIB Infotech | Uttar Pradesh |
| Sibmitinme | Tamil Nadu |
| Sidana Info Software Pvt Ltd | Rajasthan |
| SIDBI Venture Capital Ltd | Maharashtra |
| Siddaganga Institute of Technology | |
| Siddartha Institute of Science and Technology | |
| Sidddhartha Institute of Technology & Sciences | |
| Siddhan Intelligence Pvt Ltd | Tamil Nadu |
| Siddharth Infosys | Rajasthan |
| Siddharth Institute of Engineering & Technology | Andhra Pradesh |
| Siddhartha Academy of General & Technical Education | |
| Siddhartha Group of Institutes | |
| Siddhatech | Maharashtra |
| Siddhrans Technologies, LLP | |
| Sidemdata Technologies Pvt Ltd | |
| Sidhman Technologies | |
| Sidho-Kanho-Birsha University | |
| Sidhyati | Maharashtra |
| Sido Kamhu Murmu University | |
| Sidvin Core-Tech India Pvt Ltd | Karnataka |
| Sieg Partners | |
| SIENNA ECAD Technologies | Karnataka |
| Sieora | |
| SIES College of Arts, Science & Commerce | |
| SIES College Of Commerce & Economics | |
| SIES Graduate School Of Technology | |
| SIES Institute of Comprehensive Education | |
| SIES(Nerul) College of Arts, Science and Commerce | |
| Sifars | Punjab |
| sifr | Maharashtra |
| Sify Technologies Ltd | Tamil Nadu |
| SigiloTech | |
| Sigma Computers | |
| Sigma-Byte Computers Pvt Ltd | Maharashtra |
| SigmaIT Software Designers Pvt Ltd | |
| SigmaIT Software Designers Pvt Ltd | |
| Sigmapeiron | Kerala |
| Sigmatus Solutions Pvt Ltd | |
| Sign Solutions | |
| Signalchip | Karnataka |
| SignalX | Telangana |