- WinGraphic
- WingSwept
- Winifred (Mitchell) Baker
- Winifred (Tim) Alice Asprey
- Winking
- WinMagic
- WinRAR
- WinRAR (32-bit)
- WinRAR (64-bit)
- WinSCP
- Winshuttle
- Winstars Technology Ltd
- Winstep Nexus Dock
- Winstep Software Technologies
- Winstep Xtreme
- Wintec Industries Inc.
- Winternals
- WinUtilities Free Edition
- WinUtilities Professional Edition
- WinWAP
- WinWAP
- Winwap Technologies
- Winxnet, Inc.
- WinZip
- WinZip
- WinZip Command Line
- WinZip Computing
- WinZip Courier
- WinZip Driver Updater
- WinZip Registry Optimizer
- WinZip System Utilities Suite
- Wipro Gallagher Solutions
- Wipro limited
- Wipro Technologies
- Wireless Ronin Technologies
- Wireless Specialty Apparatus Company
- Wisdom InfoTech Ltd.
- Wisdom Software
- Wise Disk Cleaner Free
- Wise Registry Cleaner Free
- Wise Solutions, Inc
- Wise.io, Inc.
- WiseCleaner
- WISeKey
- Wishabi
- Wishlist
- Wistron Corporation
- Wix.com Ltd.
- Wizard Software
- Wizcom Technologies
- Wizet
- Wladimir Palant
- Wmode
- WMP Scripting Fix
- Wolf Consulting, Inc.
- Wolf Frameworks
- Wolfgang Roesner
- Wolfire Games
- Wolfram CDF Player
- Wolfram Research
- Wolters Kluwer
- Women Networks Ltd.
- Wonder Wizard 7702
- Wonder Wizard 7709
- Wonder Wizard Bulls Eye
- Wonder Wizard Scoreboard 7706
- Wonder Wizard Sharp Shooter
- Wonderware
- Wonga.com
- Word-Pdf-Convert Software
- WordLogic Corp
- WordPad
- WordPerfect
- WordStar
- WordWeb
- WordWeb Software
- Work4 Labs, Inc.
- Workbench Nostalgia
- Workboard Inc.
- Workbooks.com
- WorkCentre 3045
- WorkCentre 3210/3220
- WorkCentre 3315/3325
- WorkCentre 3550
- WorkCentre 4250
- WorkCentre 4260
- WorkCentre 5135/5150
- WorkCentre 5325/5330/5335
- WorkCentre 5735/5740/5745/5755
- WorkCentre 5765/5775/5790
- WorkCentre 6015
- WorkCentre 6400
- WorkCentre 6505
- WorkCentre 6605
- WorkCentre 7120/7125
- WorkCentre 7525/7530/7535/7545/7556
- WorkCentre 7755/7765/7775
- WorkCompEDI
- Workday, Inc.