| Sendit Project | 1 | 2 |
| Sendmail | 4 | 46 |
| Sendme Project | 1 | 1 |
| Sendpage | 1 | 1 |
| Sendpress | 1 | 1 |
| Sendquick | 4 | 12 |
| Sendy | 1 | 2 |
| Senecajs | 1 | 1 |
| Senile Team | 1 | 1 |
| Senior | 1 | 1 |
| Senkas | 1 | 2 |
| Senkas Kolibri Project | 1 | 1 |
| Senkatel | 1 | 1 |
| Sennheiser | 1 | 1 |
| Senokian Solutions | 1 | 1 |
| Sensation Designs | 1 | 1 |
| Sensepost | 1 | 1 |
| Sensesites | 1 | 3 |
| Sensible-utils Project | 1 | 1 |
| Sensiolabs | 2 | 65 |
| Senstar | 1 | 29 |
| Sensu | 1 | 2 |
| Sensysnetworks | 4 | 8 |
| Sentcms | 1 | 2 |
| Sentex | 1 | 19 |
| Sentinel | 1 | 5 |
| Sentinels Randomizer Project | 1 | 1 |
| Sentraweb | 1 | 6 |
| Sentrifugo | 1 | 20 |
| Sentrysoftware | 1 | 1 |
| Seo Backlinks | 1 | 1 |
| Seo Backlinks Project | 1 | 1 |
| Seo Panel | 1 | 20 |
| Seo Scout | 1 | 1 |
| Seo Searchterms Tagging 2 Project | 1 | 2 |
| Seo Smart Links Project | 1 | 1 |
| Seo-301-meta Project | 1 | 1 |
| Seo-board | 1 | 2 |
| Seogento | 1 | 1 |
| Seopanel | 2 | 22 |
| Seopress | 1 | 6 |
| Seopressor | 1 | 1 |
| Seoscout | 1 | 1 |
| Seothemes | 1 | 1 |
| Seotoaster | 1 | 1 |
| Seowonintech | 21 | 22 |
| Sepal | 1 | 1 |
| Sepcity | 3 | 7 |
| Sephiroth32 | 1 | 1 |
| Seportal | 1 | 1 |
| Sepppenner | 1 | 1 |
| Seqrite | 1 | 2 |
| Sequelize | 1 | 1 |
| Sequelize Project | 1 | 13 |
| Sequelizejs | 1 | 13 |
| Sequi | 2 | 4 |
| Seraphimtech | 1 | 1 |
| Serby Arslanhan | 1 | 1 |
| Serc.js Project | 1 | 1 |
| Sercomm | 4 | 562 |
| Serde | 2 | 2 |
| Serde Cbor Project | 1 | 1 |
| Serde-yaml Project | 1 | 1 |
| Serena | 1 | 5 |
| Serena Software | 1 | 1 |
| Serendipity | 2 | 60 |
| Serendipitynz | 2 | 3 |
| Serenityos | 1 | 8 |
| Serf Project | 1 | 1 |
| Serge Gebhardt | 1 | 1 |
| Serge Rey | 1 | 1 |
| Sergey Kiselev | 1 | 3 |
| Sergey Korostel | 1 | 4 |
| Sergey Lyubka | 2 | 37 |
| Sergey Oblomov | 1 | 1 |
| Sergids | 1 | 1 |
| Serial Line Sniffer | 1 | 1 |
| Serial-number Project | 1 | 1 |
| Serialize-to-js Project | 1 | 3 |
| Serioussam | 1 | 1 |
| Sermon Browser Project | 1 | 2 |
| Sernet | 1 | 1 |
| Serpico Project | 1 | 7 |
| Sertek | 1 | 2 |
| Servantix | 1 | 1 |
| Serve | 1 | 1 |
| Serve-here.js Project | 1 | 1 |
| Serve-static Project | 1 | 1 |
| Serve46 Project | 1 | 1 |
| Serverabc Project | 1 | 1 |
| Serverhuwenhui Project | 1 | 1 |
| Serverkit | 1 | 2 |
| Serverless Offline Project | 1 | 1 |
| Serverliujiayi1 Project | 1 | 1 |
| Serverlyr Project | 1 | 1 |
| Servermanagement Project | 1 | 1 |
| Servers-r-us | 1 | 1 |
| Serverscheck | 2 | 5 |
| Serverwg Project | 1 | 1 |
| Serverwzl Project | 1 | 1 |
