DLL Manufacturers
- Developer Express Inc.
- Devguru Co. Ltd.
- DeviceGuys
- DevPower Solutions
- Dexpot GbR
- Dialog Software Development Ltd.
- Diamond Multimedia Systems, Inc.
- DiamondBack Vision, Inc.
- DiBcom
- dicas digital image coding GmbH
- Dice AB
- Digi International Inc.
- Digia Plc
- Digidesign
- digilogue Digital Audio Recording Systems
- Digimask Ltd.
- Digimation Inc.
- Digital Bitcasting Corporation.
- Digital Equipment Corp.
- Digital Forcess
- Digital Illusions CE Stockholm AB
- DigitalPersona Inc.
- Dinkumware, Ltd.
- Dino Chiesa
- Disappearing Inc.
- Disc Soft Ltd
- Discreet, a division of Autodesk, Inc.
- Disk2
- Distinct Corporation
- divio inc.
- DivX Inc.
- DivXNetworks
- Dll-FIles.Com
- DMA Design Ltd.
- Dmitry Streblechenko
- Doctor Web, Ltd.
- Dolby Laboratories
- DOLI Elektronik GmbH
- Dominik Reichl
- Don HO
- Dosadi
- dotPDN LLC
- DoubleFusion
- Doug Fetter Software Wizardry
- DownloadManager
- DP Software
- DPXLibrary
- Dragon Systems, Inc.
- DragonZap
- Dritek System Inc.
- DScaler Team
- DSCINF
- DT Soft Ltd.
- DTLink Software
- dtp entertainment AG
- DTS
- dtx Dynamic Link Library
- DungeonSiege
- DVDLogic
- DVDVideoSoft
- DW Buddy Build Machine.
- Dynamix, Inc.
- E-Color, Inc.
- e-merge GmbH
- E-MU Systems
- E.O.S Limited
- EA.com
- EAC Dynamic Link Library
- Earle F. Philhower, III
- Earth Resource Mapping
- EarthLink Network, Inc.
- EaserSoft Inc.
- Eastman Kodak
- Eastman Software, Inc., A Kodak Business
- Easybits
- EasyBits Media AS
- EasyBits Software AS
- Eclipse Foundation
- Eden Games
- EdrawSoft
- EDSDK
- EHAND
- eHelp Corporation.
- Eicon Networks
- EIDOS Technologies
- eJay
- EjectDisk
- EKAP
- Elaborate Bytes
- ELAN Microelectronics Corp.
- Elcomsoft Ltd.
- Electronic Arts
- Electronic for Imaging
- element code project
- EllTech Development Inc.
- ElmueSoft
- Elo Touchsystems, Inc.
- Emagic
- eMajix.com, Inc.
- Embarcadero Technologies Inc.