RackTables - Racktables is a nifty and robust solution for datacenter and server room asset management.
ManageEngine OpManager - Monitors routers, switches, firewalls, load-balancers, wireless LAN controllers, servers, VMs, printers, storage devices, and everything that has an IP and is connected to the network.
DCImanager - DCImanager is a platform for managing physical equipment. Connect any physical equipment to a single platform. Use the platform to manage your servers, switches, PDU as well as physical and virtual networks.
NinjaRMM - NinjaRMM provides remote monitoring and management software that combines powerful functionality with a fast, modern UI. Easily remediate IT issues, automate common tasks, and support end-users with powerful IT management tools.
Opendcim - a free, web based Data Center Infrastructure Management application.
Pulseway - Pulseway changes the enterprise monitoring and management game with its mobile management solution.