SnowSoftware - Snow Software are suppliers of Software Asset Management products and help optimizing licensing & minimizing compliance risk.
Stockpile - Stockpile is a free online inventory system for small business and at home uses.
ManageEngine AssetExplorer - ManageEngine AssetExplorer is a web-based IT Asset Management software that helps you monitor and manage assets in your network.
inFlow Inventory - inFlow Inventory is inventory management software for small businesses.
IT Asset Management - Best IT Asset Management software & License tool to manage infrastructure efficiently. Cloud asset management application for ticketing to track Assets.
Snipe-IT - Managing assets with a Google doc or a shared Excel spreadsheet is more common than you think.