1Way Shareware Locking System
   Easily convert any application into time-limited shareware. Generate serial numbers to register the application.
   http://atma-software.com/1way/

ACProtect
   Executable files protector for securing programs against unauthorized copying, use and distribution.
   http://www.ultraprotect.com

AClib
   Offers a Delphi code library for protecting programs against disassembling, debugging and reverse-engineering.
   http://www.migeel.sk/anticrack/

ActiveLock
   Open source ActiveX control to protect software from piracy and allow online registration.
   http://www.activelock.com/

Agilis Software
   Agilis supplies software license management solutions for the Internet era. Product activation, node-locked, trial, subscription, floating, and usage-based licensing and more are all supported for multi-platform Java and C/C++ applications.
   http://www.agilis-sw.com

Alconost Software
   Software for distribution protection and preparing key floppy disks.
   http://www.alkonost.com/antiduplicate/

AntiCrack Protector
   Protects Windows executable files against piracy, using public keys encryption algorithms (RSA).
   http://www.anticrack.us/

Arxan Technologies Inc.
   Anti-tamper software protection tools.
   http://www.arxan.com/

Byssus Hydra
   Secure software trial, copy protection, license management and payment processing for shareware developers. Available for Windows and Linux; C/C++, VB, C# and Delphi.
   http://www.byssus.com

ByteShield, Inc.
   Protection against illegal copying, tampering and reverse engineering that makes the crackers’ work difficult and time consuming. Consumer registers product online, receiving a unique piece of code to activate it.
   http://www.byteshield.net/

ContentGuard
   Provides technology and products for rights management of digital content.
   http://www.contentguard.com

CrypKey
   Offers copy protection and software licensing control.
   http://www.crypkey.com

Data Encryption Systems Limited
   Solutions for software copy protection, data encryption and software licensing. Hardware based (dongles) for multiple platforms. Free developers kit available.
   http://www.des.co.uk/

Digital Content Protection LLC
   Licenses technologies for protecting commercial entertainment content.
   http://www.digital-cp.com/

ESDnow
   Electronic software distribution system uses on-line authentication as part of the software licensing process. Provides trial, perpetual and time-limited (subscription) licenses.
   http://www.esdnow.com

Ebook Security and Software Protection
   Offers protection of PDF and EXE files from illegal file sharing.
   http://www.ebook-security.com

ExeShield
   Turn applications into "try-before-you-buy" software easily with minimal effort to provide protection against piracy.
   http://www.exeshield.com

Fasoo.com
   Digital rights management via secure document management and distribution solutions. Company and product information, news and contact details.
   http://www.fasoo.com/eng/index.asp

Feitian Technologies
   Software protection dongles for parallel and USB ports. Also offer USB authentication tokens and USB smart card readers. Based in Beijing, China.
   http://www.ftsafe.com/

Guardant
   Software protection hardware dongles available as USB and parallel port.
   http://guardant.com

HexaLock Ltd.
   Develops and markets digital copy protection solutions that help prevent unauthorized copying of digital content, when stored on optical or other digital media.
   http://www.hexalock.co.il/

IonWorx Technology
   Supplier of copy protection utilities using triple-DES encryption.
   http://www.ionworx.com

JSC Seculab
   Software protection systems based on hardware keys and virtual machine technology.
   http://www.seculab.ru

Key-Lok
   USB, parallel and serial dongles for copy protection, software security, and piracy prevention.
   http://www.keylok.com

MMK Secure Stream
   Provides digital rights management for video and audio streams.
   http://www.mmksecurestream.com

MediaKey
   Digital Rights Management for content delivered online from a Windows Streaming Media server to Windows Media Player. Hosting, billing and payments processing also available.
   http://www.mediakey.com

Microcosm
   Copy protection and licence management systems software distributed by CDROM, DVD, the Internet, floppy disk or any other media.
   http://www.microcosm.co.uk

Mirage Systems
   Supplier of software licensing and copy protection system.
   http://www.mirage-systems.de/

NTCore
   Phoenix Protector provides obfuscation features like name, string and control flow obfuscation to help prevent .NET assembly from being decompiled into an understandable language.
   http://www.ntcore.com

Nalpeiron
   Products for software copyprotection and digital rights management.
   http://www.nalpeiron.com

Obsidium
   Application protection and licensing solution which prevents against unauthorized modifications.
   http://www.obsidium.de

PELock Software Protection
   Software copy protection and license key system for Windows applications.
   http://www.pelock.com

PPC-PROTECT
   The system of software protection for Windows CE (PocketPC) applications with ARM core, designed for quick implementation of application protection functions.
   http://www.ppc-protect.com/

Pace Anti-Piracy
   Provides next generation tools for distributing and selling software in a secure manner. Covers ESD, copy protection and license management.
   http://www.paceap.com/default.html

Protect License
   Provides affordable solutions to shield your software against unauthorized use.
   http://protectlicense.com

Rainbow Technologies
   Software protection devices, license management and encryption technology.
   http://www.rainbow.com/

SDProtector
   Offers protection against unauthorized use and distribution by using RSA1024.
   http://www.sdprotector.com

SLockPK
   License control software using public key encryption. SlockPK gives you all the protection of a hardware key (dongle), but using a software system based on public key encryption. The most complete ESD solution available.
   http://www.crypto-central.com/slock/index.html

SVKP Wrapper
   Tool that enables protection of software and secures products against unauthorized copying, use and distribution.
   http://www.defendion.com/product-wrapper_introduction.htm

Sciensoft (ElecKey)
   Software Copy Protection, Software Licensing and Activation Server System
   http://www.sciensoft.com

SecuROM Sony DADC
   CD-Rom copy protection solution by Sony DADC. SecuROM offers online encryption and in-house testing.
   http://www.securom.com

SecuTech Solution Inc.
   SecuTech Solution Inc. provides cost-effective software protection solution based on UniKey, which is a driverless dongle.
   http://www.eSecuTech.com

SecureWrap
   Online licensing system for Windows applications. Works in client, server and Citrix environments.
   http://www.securewrap.com.au

Secured Dimensions
   Software to protect, package, license, sell and control the use of application software.
   http://www.securelm.net

Settec Inc.
   Provider of copy protection for digital content. [Requires Javascript and Flash plugin to view]
   http://www.settec.net/

Sheriff
   Provides software developers with secure copy protection, solving the problems of software piracy without the need for royalty payments or dongles. Offers static library and free evaluation copy.
   http://www.sheriff-software.com

SignetSure
   Digital Signature shareware for C/C++ and VBasic developers. Your program authenticates a file with one API call. Protects files from unauthorized modification.
   http://www.SignetSure.com

Siliconkey
   Dongle based software protection system where modules of the actual software are stored on a hardware key. Without the correct key, the software will not work.
   http://www.siliconkey.com/

SmartLock
   Hardware dongle solution to help address software piracy by providing software publishers with strong copy protection and therefore secure licensing.
   http://www.smart-lock.com

Sofpro
   Software copy protection products for DOS and Windows systems. No source code modification or hardware needed.
   http://www.sofpro.com

SoftLock
   Software copy protection, usage control products and services.
   http://www.softlock.net

Softlok
   Softlok specialise in software security, anti piracy solutions and protecting web-based information.
   http://www.softlok.com/

Software Activation Service
   Provides software developers access to a centralized license server preventing software piracy by means of software activation. The service also offers Product Key generation, executaable protection, and software activation.
   http://www.activatesoft.net

SoftwareKey
   Suppliers of Protection Plus software licensing and Solo e-commerce technology.
   http://www.softwarekey.com

SoftwareShield
   Licensing and copy-protection system for Windows application developers.
   http://www.softwareshield.com

Solidshield
   Protection system that provides a professional and reliable solution for product activation and distribution against software piracy.
   http://www.solidshield.com/

Star-Force
   Advanced encryption and activation technology for CD/CD-R/DVD and electronic software distribution.
   http://www.star-force.com

TechnoData Interware
   Matrix hardware based system using dongles for the protection of software from unauthorised reproduction.
   http://www.matrixlock.de

Ultra Softlock Pvt ltd.
   DiscKeeper, a unique copy prevention technology to protect the content and software on CDs.
   http://www.uslindia.com/

V.i. Labs
   CodeArmor is a software protection solution that embeds anti-piracy, tamper and code theft prevention countermeasures into software applications.
   http://www.vilabs.com/

VMProtect
   Virtual machine transcoder for applications and drivers.
   http://www.vmprotect.ru/

Validy
   Offer an anti-piracy system that protects software by relocating variables crucial to the program into a secure token (smart card or USB key), in which they are securely modified during the program's execution.
   http://www.validy.com/

Vincera, Inc.
   License usage tracking system for web and PDF content.
   http://www.vincera.com

Wizzkey
   The WizzKey family offers a complete range of software protection products for PCs and networks.
   http://www.wizzkey.com

X-Formation
   Provider of high security copy protection and license management solutions.
   http://www.x-formation.com

diProtector
   Software copy protection and license key system for PDA developers.
   http://www.diprotector.com/