Allen Concepts, Inc
- Manufacturers of KEYKatcher, hardware based keystroke recording devices for PS/2 and USB keyboard connections.
- http://www.keykatcher.com/

Spectorsoft
- Software that logs all actions and keystrokes into a text file. Versions available for OS X, 8 and 9 for Mac, and Windows98 and higher. 5-day free trial available.
- http://www.spectorsoft.com

WinSession Logger
- Monitoring software for Windows. Includes others utilities for Windows and PHP/Mysql resources.
- http://www.cromosoft.com

KeyDevil
- Hardware keylogger for both PS/2 & USB keyboards. Available in various memory sizes depending on the model chosen.
- http://www.keydevil.com

Keelog
- Plug and play hardware keystroke recorders for PS/2 or USB keyboards.
- http://www.keelog.com

Keycarbon
- Designers & manufacturers of hardware keylogging devices for PS/2 & USB keybords as well as laptop compatible keylogging devices & PCI card keyloggers.
- http://www.keycarbon.com

Revealer Keylogger
- Free and reliable software that records passwords and conversations in common instant messengers.
- http://www.revealerkeylogger.com/

Spy Keylogger
- Software that keeps a log of all keystrokes on the computer. Screen shots, and trial download.
- http://www.spy-key-logger.com

Amecisco Inc.
- Stand alone software for surveillance as well as a hardware based keylogger keyboard.
- http://www.keylogger.com/

KeyCaptor
- Software that runs in stealth mode and records all keystrokes of all users with option to have reports emailed to a remote address.
- http://www.keylogger-software.com/

Invisible Keylogger
- Software to record all keystrokes typed and secretly take snapshots of desktop activities.
- http://www.invisiblekeylogger.com/

Perfect Keylogger
- Compact software tool to record all keystrokes along with the time of their performing and the application they were entered in, both in visible and stealth mode. Shareware and freeware versions are available.
- http://www.blazingtools.com/bpk.html

Keystroke Recorders
- Keystroke logger information, prevention, removal, and downloads for key capturing programs and hardware for all operating systems.
- http://keystroke-loggers.staticusers.net/

KeyGhost
- Hardware that records keystrokes with a tiny module that plugs into keyboard, for detecting and preventing unauthorized use of company PC computers.
- http://www.keyghost.com/

Keylogger Comparison
- Comparison of different software based keyloggers.
- http://www.keylogger.org/

Ghost Keylogger
- Invisible keylogging sureveillance software with email functionality.
- http://www.keylogger.net/