| Doorgets | 2 | 24 |
| Doorkeeper Project | 1 | 6 |
| Doorkeeper-gem | 1 | 1 |
| Dootzky | 1 | 6 |
| Doow | 1 | 1 |
| Dopewars | 1 | 2 |
| Dopewp | 1 | 1 |
| Dopnetwork Project | 1 | 1 |
| Dora Emlak | 1 | 3 |
| Dormsystem Project | 1 | 2 |
| Doruk100.net | 1 | 1 |
| Doryphores | 1 | 4 |
| Dosbox | 1 | 3 |
| Dosfstools Project | 1 | 2 |
| Dot Project | 1 | 2 |
| Dot-notes Project | 1 | 1 |
| Dot-object Project | 1 | 1 |
| Dot-prop Project | 1 | 1 |
| DotCMS | 1 | 1 |
| Dotbr | 1 | 1 |
| Dotclear | 1 | 29 |
| Dotcms | 1 | 53 |
| Dotcontent | 1 | 1 |
| Dotdeb | 1 | 1 |
| Dotit-corp | 1 | 1 |
| Dotnetbb | 1 | 1 |
| Dotnetblogengine | 1 | 20 |
| Dotnetcore | 1 | 1 |
| Dotnetfoundation | 1 | 2 |
| Dotnetindex | 3 | 7 |
| Dotnetnuke | 3 | 46 |
| Dotnetzip | 1 | 1 |
| Dotnetzip.semverd Project | 1 | 1 |
| Dotonpaper | 1 | 1 |
| Dotplant | 1 | 1 |
| Dotproject | 1 | 15 |
| Dotty Project | 1 | 2 |
| Dotwidget | 1 | 1 |
| Double Precision Incorporated | 4 | 15 |
| Double-take Software | 1 | 7 |
| Doubleflex | 1 | 1 |
| Douchat | 1 | 1 |
| Douco | 1 | 18 |
| Doufox | 1 | 1 |
| Doug Luxem | 1 | 2 |
| Doug Neal | 1 | 1 |
| Doug Poulin | 1 | 4 |
| Dounokouno | 1 | 4 |
| Douran | 2 | 80 |
| Douran Software Technologies | 1 | 1 |
| Douroshisetu | 1 | 1 |
| Douzone | 3 | 5 |
| Douzone Bizon Co.,ltd | 1 | 2 |
| Douzone Ict Group. | 1 | 1 |
| Dov Grobgeld | 1 | 1 |
| Dovecot | 2 | 58 |
| Dovestones | 1 | 1 |
| Downline Goldmine | 2 | 2 |
| Download Anti-malware Security And Brute-force Firewall Project | 1 | 1 |
| Download Zip Attachments Project | 1 | 1 |
| Download-manager | 2 | 57 |
| Downloadmanager | 1 | 42 |
| Downstairs.dnsalias | 1 | 6 |
| Downton Abbey Fan Portal Project | 1 | 1 |
| Doxygen | 1 | 1 |
| Doyocms Project | 1 | 6 |
| Dozer Project | 1 | 1 |
| Dp3t-backend-software Development Kit Project | 1 | 1 |
| Dpdk | 2 | 32 |
| Dpgaspar | 2 | 17 |
| Dpic Project | 1 | 6 |
| Dpivision | 1 | 1 |
| Dpl | 2 | 2 |
| Dplugins | 1 | 1 |
| Dproxy | 1 | 2 |
| Dproxy-nexgen Project | 1 | 5 |
| Dpsoft | 1 | 1 |
| Dptech | 1 | 1 |
| Dpup | 1 | 1 |
| Dr.web | 1 | 5 |
| Dracut Project | 1 | 4 |
| Dradisframework | 1 | 4 |
| Draeger | 12 | 32 |
| Draftpress | 2 | 5 |
| Dragdropcart | 1 | 1 |
| Dragon Internet | 1 | 1 |
| Dragonbyte-tech | 6 | 6 |
| Dragonexpert | 1 | 1 |
| Dragonfly | 1 | 4 |
| Dragonfly Project | 1 | 4 |
| Dragonflybsd | 1 | 6 |
| Dragonfrugal | 1 | 4 |
| Dragonwavex | 2 | 2 |
| Dragoon | 1 | 2 |
| Dragoran | 1 | 1 |
| Drake Team | 1 | 8 |
| Drakkan | 1 | 4 |
| Drar-eym | 1 | 1 |
| Draw | 1 | 1 |
| Drawblog Project | 1 | 1 |
