| D-CIRCLE Inc. | 1 | 1 |
| D-Link | 36 | 106 |
| D-Link Japan K.K. | 2 | 6 |
| D-bus | 1 | 9 |
| D-bus Project | 1 | 9 |
| D-coda | 1 | 1 |
| D-ic | 2 | 2 |
| D-link | 181 | 631 |
| D. Relton | 1 | 2 |
| D.j.bernstein | 1 | 3 |
| D.r.commander | 1 | 17 |
| D2-shoutbox | 1 | 1 |
| D2iq | 2 | 2 |
| D2ksoft | 1 | 2 |
| D2l | 1 | 1 |
| D8s-archives Project | 1 | 2 |
| D8s-asns Project | 1 | 3 |
| D8s-grammars Project | 1 | 1 |
| D8s-html Project | 1 | 2 |
| D8s-ip-addresses Project | 1 | 2 |
| D8s-json Project | 1 | 2 |
| D8s-math Project | 1 | 1 |
| D8s-mpeg Project | 1 | 1 |
| D8s-netstrings Project | 1 | 1 |
| D8s-pdfs Project | 1 | 2 |
| D8s-python Project | 1 | 3 |
| D8s-strings Project | 1 | 2 |
| D8s-utility Project | 1 | 3 |
| D8s-xml Project | 1 | 3 |
| DAEXT | 3 | 3 |
| DBD | 1 | 1 |
| DBPOWER | 1 | 1 |
| DBRisinajumi | 1 | 1 |
| DD-WRT | 1 | 1 |
| DECE Software | 1 | 2 |
| DELL EMC | 8 | 39 |
| DEMON1A | 1 | 4 |
| DENX Software Engineering | 1 | 3 |
| DEXMA | 1 | 5 |
| DFIRKuiper | 1 | 1 |
| DFNDR | 1 | 1 |
| DGLogik Inc | 1 | 1 |
| DHC Corporation | 1 | 1 |
| DIAEnerrgie | 1 | 48 |
| DIGITALBLUE | 1 | 1 |
| DIYgod | 1 | 4 |
| DJ EmailPublish | 1 | 1 |
| DMTF | 1 | 2 |
| DNNSoftware | 1 | 1 |
| DOS Co., Ltd. | 1 | 3 |
| DOUZONE BIZON Co.,Ltd | 1 | 2 |
| DOUZONE ICT GROUP. | 1 | 1 |
| DPDK | 1 | 6 |
| DRAYTEK CORP. | 1 | 1 |
| DRD Fleet Leasing | 1 | 1 |
| DSpace | 1 | 8 |
| DTS Electronics | 1 | 2 |
| DaSchTour | 1 | 1 |
| Daan Sprenkels | 1 | 2 |
| Daansystems | 1 | 2 |
| Dacian Strain | 1 | 2 |
| Dacode | 1 | 1 |
| Dada Mail | 1 | 1 |
| Dadabik | 1 | 2 |
| Dadaimc | 1 | 1 |
| Dadajiasu | 1 | 1 |
| Dadamailproject | 1 | 1 |
| Daddytoken Project | 1 | 1 |
| Daemon-tools | 1 | 3 |
| Daemonology | 1 | 1 |
| Daffodil Software | 1 | 1 |
| Dafolo | 1 | 1 |
| Dag.wieers | 1 | 2 |
| Dag Apt Repository | 1 | 3 |
| Dahua | 4 | 9 |
| Dahua Technologies | 4 | 4 |
| Dahua Technology | 1 | 5 |
| Dahuasecurity | 294 | 847 |
| Daicuo | 1 | 1 |
| Daiki Ueno | 2 | 2 |
| Daikin | 2 | 4 |
| Daily Free App \@ Amazon Project | 1 | 1 |
| Daily Green Project | 1 | 1 |
| Daily Tracker System Project | 1 | 2 |
| Dainst | 1 | 1 |
| Daisuke Takahashi(Extend Wings) | 1 | 1 |
| Daisy Themes | 1 | 1 |
| Dakshaa | 1 | 1 |
| Dalbum | 1 | 1 |
| Dale Mooney | 3 | 11 |
| Dale Ray | 1 | 1 |
| Dallas Semiconductor | 1 | 1 |
| Dallmann-consulting | 1 | 5 |
| Dalmark | 1 | 4 |
| Dalnet | 1 | 2 |
| Daman371 | 1 | 1 |
| Dameng | 1 | 1 |
| Dameware | 2 | 4 |
| Dameware Development | 5 | 8 |
| Damian Frizza | 1 | 2 |
