| 1926 | OCEAN SKILLS PRIVATE LIMITED - U80903MH2009PTC192714 |
| 1927 | OCTAVE BUSINESS MANAGEMENT SERVICES PRIVATE LIMITED - U80301MH2012PTC238972 |
| 1928 | OCTAVE BUSINESS SCHOOL - U80300MH2012NPL232481 |
| 1929 | OHM EDUBRIDGE PRIVATE LIMITED - U80210MH2012PTC226493 |
| 1930 | OHM EDUCOM FOUNDATION PRIVATE LIMITED - U80210MH2004PTC148177 |
| 1931 | OHUM CHARITABLE FOUNDATION - U80901MH2008NPL186634 |
| 1932 | OJAS TRAINERS PRIVATE LIMITED - U80300PN2009PTC134660 |
| 1933 | OM MANPOWER TRAINING AND MANAGEMENT SERVICES PRIVATE LIMITED - U80302MH2003PTC140039 |
| 1934 | OM SHIKSHAN FOUNDATION - U80903PN2014NPL152434 |
| 1935 | OMEGAN EDUCATIONAL ACADEMY - U80301MH2008NPL186381 |
| 1936 | OMICRON VULCANISERS P.LTD. - U80300MH1994PTC076615 |
| 1937 | OMKAR CLASSES AND PUBLICATIONS PRIVATE LIMITED - U80904MH2000PTC129355 |
| 1938 | OMKAR IT EDUCATION PRIVATE LIMITED - U80904MH2011PTC222585 |
| 1939 | OMLET PRIVATE LIMITED - U80904MH2016PTC282373 |
| 1940 | ONE EDUCATION INITIATIVES PRIVATE LIMITED - U80904MH2010PTC206751 |
| 1941 | ONETREE EDUCATION PRIVATE LIMITED - U80902MH2013PTC251277 |
| 1942 | ONLIEST EDUTECH PRIVATE LIMITED - U80903PN2015PTC156440 |
| 1943 | ONLINE COACHING PRIVATE LIMITED - U80902MH2000PTC123828 |
| 1944 | OPEN EDUCATION PRIVATE LIMITED - U80904MH2012PTC230593 |
| 1945 | OPEN PATHSHALA EDUTECH PRIVATE LIMITED - U80221MH2017PTC291439 |
| 1946 | OPPIA LEARNINGS PRIVATE LIMITED - U80904MH2017PTC301536 |
| 1947 | OPTIMUM EDUCATORS PRIVATE LIMITED - U80900MH2009PTC196550 |
| 1948 | ORANGE SCHOOL OF BUSINESS FOUNDATION - U80904MH2013NPL250472 |
| 1949 | ORANGECITY KNOWLEDGE FOUNDATION - U80904MH2017NPL300880 |
| 1950 | ORB WISE LEARNING PRIVATE LIMITED - U80220MH2005PTC151157 |