- McAfee SiteAdvisor Live
- McAfee SmartFilter
- McAfee Total Protection
- McAfee Total Protection for Server
- McAfee Virtual Patching for Databases
- McAfee Virus Scanner
- McAfee Vulnerability Manager for Databases
- McAfee Web Protection
- McColo
- McCormack and Dodge
- MCG Business Solutions
- McGladrey LLP
- MCJ Co Ltd
- McLeod Software Corporation
- MCPc, Inc.
- MCSG Technologies
- MD On-Line
- MD3-D01
- MD3-D02
- MDG Computers
- MDS America
- mdvisser
- ME Laptop 1014
- ME Laptop 1015
- ME Laptop 1024
- ME Laptop 1034
- ME Laptop 1044
- ME Laptop 2025
- ME Laptop 2035
- ME OFFICE 82WD
- ME1000 Series
- ME400
- MECC
- Mecel
- Mechdyne Corporation
- MedAssets, Inc.
- MedeAnalytics
- Medecision
- Medi-1000
- Medi-1200
- Medi-2200 Plus
- Medi-3200
- Medi-5000
- Medi-6000
- Medi-6000 Plus
- Medi-7000
- Media Cybernetics Lp
- Media Player Classic
- Media Player Classic - Homecinema
- Media Player Classic Home Cinema
- Media Player Codec Pack
- Media Player Codec Pack
- Media Shoppe Bhd, The
- Media Temple
- Mediachase
- MediaCodec
- Mediafly, Inc
- MediaGet
- MediaGet
- MediaHound, Inc.
- MediaMonkey Standard
- MediaSoft
- MediaTek Inc.
- Medical Information Technology, Inc.
- Medical Transcription Billing, Corp.
- Medicus Solutions
- Medidata Solutions
- MediNotes
- Medion
- Medior
- Mediware Information Systems, Inc.
- MEDL Mobile
- MedTech Ltd
- Meebox
- MeetingMatrix International, Inc
- MeetingZone
- Meg Whitman
- Meg Whitman
- Mega Duck
- MEGA International
- Megan Smith
- Megapath Inc
- Meir (Manny) Lehman
- Melbourne IT
- MELCOM 1101
- MELCOM 1530
- MELCOM 3100 series
- MELCOM 70 Series/Model 20
- MELCOM 7000 Series
- MELCOM ME RISC Series
- MELCOM ME/S8000
- MELCOM PSI
- MELCOM-COSMO 900II
- MELCOM70
- MELCOM70 MX/2600
- MELCOM70 MX/3000
- MELCOM70 MX5800
- MELCOM70 MX5800-SP
- MELCOM70 Series Model 30