OpenMAINT - openMAINT manages movable assets, the real estate, and the related maintaining, logistic and economic activities, GIS and BIM
GLPI - GLPI is the Information Resource-Manager with an additional Administration- Interface.
Reftab - Free asset management software with check in check out. Track assets with custom asset tags and mobile apps. Supports handheld scanners for quick item check out.
Lansweeper - Lansweeper discovers Windows, Linux and Mac machines in your network.
AssetTiger - AssetTiger is a free community service and cloud-based asset management tool.
FusionInventory - Fork of the OCS Inventory project that enables users to inventory their IT assets.