Keygen - A dead-simple software licensing API built for developers
SoftwareKey Licensing System - SoftwareKey System is a set of software development tools that help programmers implement copy protection, license activation and management, metering, eCommerce, and business automation.
Labs64 NetLicensing - Monetize your digital products and services
Vector Vizor Software - Vizor Software manages the entire software estate, including on-premise PC software licenses, mobile app purchases and cloud service subscriptions.
SafeGuard LM - License manager software, Asset protection, Licensing software, SafeGuard LM, Metatrader 4, Software license protection
Software Escrow - NCC Group provides software escrow solutions to anyone looking to protect the source code behind web application or the critical data held within them.