Keygen - A dead-simple software licensing API built for developers
Labs64 NetLicensing - Monetize your digital products and services
10Duke Enterprise - Powerful cloud-based licensing solution designed for fast-growing software businesses looking to scale up software licensing & minimize friction.
LicenseSpring - Reliable and easy to use License-As-A-Service (LaaS) for for any software application
VMProtect - VMProtect Ultimate - All-In-One Solution For Software Licensing And Protection.
wyDay LimeLM - Use LimeLM to add hardware-locked licensing, online activation, and timed trials to your app.