Stockpile - Stockpile is a free online inventory system for small business and at home uses.
Timewatch - Timewatch offers time tracking, expense management, resource scheduling and professional services automation solutions.
inFlow Inventory - inFlow Inventory is inventory management software for small businesses.
Office Timesheets - Professional Services Automation
Snipe-IT - Managing assets with a Google doc or a shared Excel spreadsheet is more common than you think.
Krow - Krow Software is a professional service automation solution.