Lansweeper - Lansweeper discovers Windows, Linux and Mac machines in your network.
NetBox - NetBox is an open source web application designed to help manage and document computer networks. NetBox was developed specifically to address the needs of network and infrastructure engineers.
SolarWinds Service Desk - An IT service management (ITSM) solution that understands what it takes to successfully manage your employee services. Try Solarwinds Service Desk for free!
Snipe-IT - Managing assets with a Google doc or a shared Excel spreadsheet is more common than you think.
LogMeIn Central - LogMeIn Central is a comprehensive endpoint management software that easily helps IT professionals manage and monitor their organization’s endpoint infrastructure.
Zabbix - Track, record, alert and visualize performance and availability of IT resources