| Jack De Winter | 1 | 1 |
| Jack Slocum | 1 | 3 |
| Jackalope | 1 | 1 |
| Jackaudio | 1 | 1 |
| Jackdapp | 1 | 1 |
| Jacob Hinkle | 1 | 1 |
| Jacob Navia | 1 | 1 |
| Jacob Rhoden | 1 | 1 |
| Jacques Gelinas | 1 | 2 |
| Jadedown Project | 1 | 1 |
| Jadu | 2 | 2 |
| Jadu Limited | 1 | 1 |
| Jaea | 1 | 1 |
| Jaf Cms | 1 | 10 |
| Jaguarsoft | 1 | 1 |
| Jahia | 1 | 3 |
| Jaia Interactive | 1 | 4 |
| Jakcms | 1 | 1 |
| Jake Gordon | 1 | 3 |
| Jake Olefsky | 1 | 2 |
| Jakob-persson | 1 | 35 |
| Jakub Steiner | 1 | 1 |
| Jakweb | 1 | 4 |
| Jal Information Technology Co., Ltd. | 1 | 1 |
| Jalinfotec | 1 | 1 |
| Jalios | 1 | 2 |
| Jam Warehouse | 1 | 2 |
| Jamalbates | 1 | 1 |
| Jamasoftware | 1 | 66 |
| Jambatan Pbb Semporna Project | 1 | 1 |
| James Ashton | 1 | 1 |
| James Barnsley | 1 | 2 |
| James Glasgow | 1 | 1 |
| James Greenwood | 1 | 1 |
| James Stone | 1 | 2 |
| James Theiler | 1 | 1 |
| Jamesmartin | 1 | 1 |
| Jamesoff | 1 | 1 |
| Jamf | 3 | 9 |
| Jamieblomerus | 1 | 1 |
| Jamit | 1 | 3 |
| Jamit Software | 1 | 3 |
| Jamm-media | 1 | 1 |
| Jammail | 1 | 1 |
| Jammer Project | 1 | 1 |
| Jamovi | 1 | 1 |
| Jamroom | 2 | 10 |
| Jamwiki | 1 | 2 |
| Jan Bednarik | 1 | 3 |
| Jan Chmelik | 1 | 2 |
| Jan De Graaff | 1 | 2 |
| Jan Engelhardt | 1 | 1 |
| Jan Eric Krprianidis | 1 | 1 |
| Jan Hubicka | 1 | 1 |
| Jan Kara | 1 | 1 |
| Jan Kybic | 1 | 2 |
| Jan Schutze | 1 | 2 |
| Jan Syski | 1 | 3 |
| Jan-ake Larsson | 1 | 1 |
| Jandus Technologies | 1 | 1 |
| Janeczku | 1 | 14 |
| Janetter | 1 | 2 |
| Janguo | 2 | 3 |
| Janitza | 5 | 35 |
| Janko | 1 | 1 |
| Janobe | 1 | 2 |
| Janrain | 3 | 7 |
| Jansenstuffpleasework Project | 1 | 1 |
| Jansson Project | 1 | 3 |
| Jantek | 2 | 4 |
| Jaow | 1 | 1 |
| Japan Agency For Local Authority Information Systems | 6 | 7 |
| Japan Air Self Defense Force, Ministry Of Defense | 8 | 8 |
| Japan Atomic Energy Agency | 1 | 1 |
| Japan Pension Service | 8 | 8 |
| Japan Radio | 2 | 4 |
| Japan Total System Co.,ltd. | 1 | 10 |
| Japanese Php Gallery Hosting | 1 | 1 |
| Jappix Project | 1 | 1 |
| Jara | 1 | 2 |
| Jara Project | 1 | 2 |
| Jared Meeker | 1 | 2 |
| Jaredeckersley | 1 | 1 |
| Jarle Aase | 1 | 1 |
| Jasdf | 1 | 1 |
| Jasig | 1 | 2 |
| Jasig Project | 3 | 14 |
| Jasio.net | 1 | 2 |
| Jasmine | 1 | 111 |
| Jasmine Technologies | 1 | 2 |
| Jason A Donenfeld | 1 | 9 |
| Jason Alexander | 1 | 1 |
| Jason Boettcher | 1 | 2 |
| Jason Flatt | 1 | 2 |
| Jason Frisvold | 1 | 1 |
| Jason Geiger | 1 | 8 |
| Jason Hines | 1 | 2 |
| Jason Moore | 1 | 1 |
| Jason Orcutt | 1 | 3 |
| Jason Rahaim | 1 | 1 |
