Keygen - A dead-simple software licensing API built for developers
VMProtect - VMProtect Ultimate - All-In-One Solution For Software Licensing And Protection.
Labs64 NetLicensing - Monetize your digital products and services
Themida - Advanced Windows software protection system, developed for software developers who wish to protect...
LicenseSpring - Reliable and easy to use License-As-A-Service (LaaS) for for any software application
ExEinfo PE - Packer, compressor detector / unpack info / internal exe tools.