| Search Everything Project | 1 | 4 |
| Search Exclude Project | 1 | 2 |
| Search Meter Project | 1 | 1 |
| Search-guard | 1 | 10 |
| Search.cpan | 1 | 2 |
| Searchactivity | 1 | 1 |
| Searchblox | 1 | 17 |
| Sears | 1 | 1 |
| Seasar | 1 | 2 |
| Seaside Enterprises | 1 | 1 |
| Seasofsolutions | 2 | 16 |
| Seat Reservation System Project | 1 | 2 |
| Seat-reservation-system Project | 1 | 1 |
| Seatd Project | 1 | 2 |
| Seattle Lab Software | 4 | 14 |
| Seawell Networks | 1 | 3 |
| Seawolftech | 1 | 1 |
| Sebastian Baumann | 2 | 2 |
| Sebastian Bunka | 1 | 2 |
| Sebastian Dehne | 1 | 1 |
| Sebastian Fernandez | 1 | 1 |
| Sebastian Heinlein | 1 | 6 |
| Sebastian Kienzl | 1 | 1 |
| Sebastian Marsching | 1 | 2 |
| Sebastian Winterhalder | 1 | 7 |
| Sebastian-thiele | 1 | 1 |
| Sebastien Corbin | 1 | 1 |
| Seber | 1 | 1 |
| Sebflipper | 1 | 1 |
| Sebhildebrandt | 1 | 8 |
| Sebrac | 1 | 1 |
| Sebrac.webcindario | 1 | 1 |
| Sec Project | 1 | 1 |
| Seccome | 1 | 6 |
| Secdev | 1 | 1 |
| Secdo | 1 | 3 |
| Seceon | 1 | 1 |
| Secluded | 1 | 12 |
| Secoin Project | 1 | 1 |
| Secom | 4 | 14 |
| Secomea | 32 | 332 |
| Secomea Gatemanager All Versions Prior To 9.2c | 1 | 1 |
| Second Rule Llc | 1 | 2 |
| Second Sight Software | 2 | 2 |
| Secondfiction | 2 | 2 |
| Secondline | 1 | 2 |
| Secondlinethemes | 2 | 4 |
| Secretarycms | 1 | 1 |
| Secretcircle | 1 | 1 |
| Secretwars | 1 | 4 |
| Section2.madisonjbrooks12 Project | 1 | 1 |
| Sectoken Project | 1 | 1 |
| Sectona | 1 | 1 |
| Sectool | 1 | 1 |
| Sector-five | 1 | 1 |
| Secudos | 2 | 4 |
| Secunia | 1 | 1 |
| Secure Computing | 2 | 11 |
| Secure E-commerce Script Project | 1 | 1 |
| Secure Elements | 2 | 9 |
| Secure Password Hashes Project | 1 | 1 |
| Secure Reality | 1 | 1 |
| Secure-bytes | 1 | 1 |
| Secure-compare Project | 1 | 1 |
| Secure-endpoints | 1 | 1 |
| Secure-software-engineering | 2 | 2 |
| Secureauth | 2 | 2 |
| Securebrain | 2 | 4 |
| Securebrain Corporation | 3 | 3 |
| Securecomputing | 11 | 23 |
| Secureideas | 2 | 18 |
| Securekit | 1 | 1 |
| Securemoz | 1 | 2 |
| Securenvoy | 3 | 10 |
| Secureol | 1 | 1 |
| Securepoint | 1 | 3 |
| Securew2 | 1 | 1 |
| Securifi | 8 | 80 |
| Securimage-wp-fixed | 1 | 2 |
| Securimage-wp-fixed Project | 1 | 2 |
| Securitashome | 2 | 4 |
| Security Questions Project | 1 | 1 |
| Security Roots Ltd | 1 | 1 |
| Security-framework Project | 1 | 1 |
| Securitycamera | 1 | 1 |
| Securityonion | 1 | 3 |
| Securityonionsolutions | 1 | 1 |
| Securonix | 1 | 2 |
| Securstar | 1 | 1 |
| Secustar | 1 | 1 |
| Secustick | 1 | 1 |
| Secutech Project | 6 | 6 |
| Secuwiz | 1 | 1 |
| Secuwiz Co., Ltd | 2 | 2 |
| Seczetta | 1 | 2 |
| Sedlex | 1 | 2 |
| See-commerce | 1 | 1 |
| Seeblick | 1 | 1 |
| Seeddms | 1 | 29 |
| Seedprod | 3 | 3 |
