| 1976 | RUPANAGUDI POWER SYSTEMS PRIVATE LIMITED - U40109TG2003PTC042174 |
| 1977 | RUSHI RENEWABLE ENERGIES PRIVATE LIMITED - U40105TG2013PTC090513 |
| 1978 | RUSSELL'S ENERGY PRIVATE LIMITED - U40100TG2009PTC063986 |
| 1979 | RUSTAL ENERGY PRIVATE LIMITED - U40108TG2008PTC061762 |
| 1980 | RVK ENERGY (RAJAHMUNDRY) PRIVATE LIMITED - U40108TG2009PTC064155 |
| 1981 | RVK ENERGY PRIVATE LIMITED - U40109TG1995PTC022602 |
| 1982 | RYTHU BIO-ENERGY PRIVATE LIMITED - U40107TG2006PTC050740 |
| 1983 | S M M ENERGY PRIVATE LIMITED - U40109TG2014PTC092679 |
| 1984 | S QUBE ENERGY PROJECTS PRIVATE LIMITED - U40108TG2012PTC080227 |
| 1985 | S R RENEWABLE ENERGY LIMITED - U40109TG1995PLC022145 |
| 1986 | S R SUN POWER INDIA PRIVATE LIMITED - U40300TG2015PTC101031 |
| 1987 | S S E ENERGY (INDIA) PRIVATE LIMITED - U40108TG2014PTC093709 |
| 1988 | S.S.L. SURYA SOLAR TECHNOLOGIES PRIVATE LIMITED - U40106TG2004PTC044405 |
| 1989 | S.V. HYDEL PRIVATE LIMITED - U40109TG1999PTC031786 |
| 1990 | S.V.TURBO ENGINEERING WORKS PRIVATE LIMITED - U40200TG2005PTC046406 |
| 1991 | SAAKI POWER PROJECT LIMITED - U40108TG2003PLC041034 |
| 1992 | SAANIL POWER PRIVATE LIMITED - U40108TG2013PTC091384 |
| 1993 | SAAS POWER PROJECTS PRIVATE LIMITED - U40101TG2010PTC068387 |
| 1994 | SAASHWATH POWER PROJECTS (M.P) PRIVATE LIMITED - U40105TG2010PTC067189 |
| 1995 | SAASHWATH POWER PROJECTS PRIVATE LIMITED - U40102TG2009PTC065741 |
| 1996 | SABARI GREEN ENERGY PVT LTD - U40109TG2006PTC049348 |
| 1997 | SABASAPURAM WIND FARMS PRIVATE LIMITED - U40106TG2016PTC111671 |
| 1998 | SADASHEEN ENERGIES PRIVATE LIMITED - U40102TG2009PTC062920 |
| 1999 | SADVI POWER & INFRATECH PRIVATE LIMITED - U40100TG2008PTC061039 |
| 2000 | SAFFRON POWER PRIVATE LIMITED - U40109TG2005PTC046431 |