| J-onasJones | 1 | 1 |
| J-owamp | 1 | 9 |
| J-pierre Dezelus | 1 | 3 |
| J. Peters | 1 | 4 |
| J.N. Breetvelt A.k.a. OpaJaap | 1 | 3 |
| J. P. Grossman | 1 | 1 |
| J00lean-cms | 1 | 1 |
| J2eefast | 1 | 1 |
| J2k-codec | 1 | 1 |
| J2store | 1 | 3 |
| JAL Information Technology Co., Ltd. | 1 | 1 |
| JAPAN AIR SELF DEFENSE FORCE, MINISTRY OF DEFENSE | 8 | 8 |
| JBL | 1 | 1 |
| JBoss | 2 | 2 |
| JBoss AS 7 | 1 | 4 |
| JBoss Application Server | 1 | 2 |
| JBoss BRMS | 1 | 2 |
| JBoss KeyCloak | 1 | 2 |
| JBossWeb Bayeux | 1 | 1 |
| JC Development Team | 1 | 1 |
| JFrog | 2 | 21 |
| JINS Inc. | 1 | 1 |
| JIRANSOFT JAPAN, INC. | 2 | 2 |
| JLLeitschuh | 1 | 1 |
| JON | 1 | 1 |
| JP1016 | 1 | 1 |
| JPCERT Coordination Center | 1 | 4 |
| JS Help Desk | 2 | 3 |
| JTEKT ELECTRONICS CORPORATION | 15 | 58 |
| JUNG | 1 | 3 |
| J\!extensions Store | 1 | 1 |
| J Hepple Products | 9 | 9 |
| J Waite | 1 | 1 |
| Ja-elvis | 1 | 1 |
| Ja-sig | 1 | 1 |
| Jaba | 1 | 1 |
| Jabba Laci | 1 | 1 |
| Jabber | 2 | 10 |
| Jabber2 | 1 | 7 |
| Jabber Software Foundation | 1 | 2 |
| Jabberd | 1 | 2 |
| Jabberd2 | 1 | 7 |
| Jabberstudio | 3 | 6 |
| Jabode | 1 | 1 |
| Jabref | 1 | 1 |
| Jack De Winter | 1 | 1 |
| Jack Slocum | 1 | 3 |
| Jackaudio | 1 | 1 |
| Jackdapp | 1 | 1 |
| Jackmail & Sarbacane | 1 | 1 |
| Jacob Hinkle | 1 | 1 |
| Jacob Navia | 1 | 1 |
| Jacob Rhoden | 1 | 1 |
| Jacques Malgrange | 1 | 2 |
| Jacques Gelinas | 1 | 2 |
| Jadu | 2 | 2 |
| Jadu Limited | 1 | 1 |
| Jaegertracing | 1 | 1 |
| Jaf Cms | 1 | 10 |
| Jaguarsoft | 1 | 1 |
| Jahastech | 1 | 2 |
| Jahia | 1 | 3 |
| Jaia Interactive | 1 | 4 |
| Jailed Project | 1 | 1 |
| Jakcms | 1 | 1 |
| Jake Gordon | 1 | 2 |
| Jake Olefsky | 1 | 2 |
| Jakob-persson | 1 | 35 |
| Jakub Steiner | 1 | 1 |
| Jakweb | 1 | 4 |
| Jalios | 1 | 2 |
| Jam Warehouse | 1 | 2 |
| Jamalbates | 1 | 1 |
| Jamasoftware | 1 | 49 |
| Jambatan Pbb Semporna Project | 1 | 1 |
| James Irving-Swift | 1 | 1 |
| James Lao | 1 | 1 |
| James Mehorter | 1 | 1 |
| James Ward | 1 | 2 |
| James Ashton | 1 | 1 |
| James Barnsley | 1 | 2 |
| James Clark | 1 | 2 |
| James Glasgow | 1 | 1 |
| James Greenwood | 1 | 1 |
| James Seter | 1 | 1 |
| James Stone | 1 | 2 |
| James Theiler | 1 | 1 |
| Jamesoff | 1 | 1 |
| Jamf | 4 | 9 |
| Jamie Poitra | 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 Syski | 1 | 1 |
| Jan-ake Larsson | 1 | 1 |
