OpenBOM (TM) Alternatives
OpenBOM (TM) is described as 'OpenBOM is cloud-based tool to create and manage your Bill of Materials (BOMs) and Part Catalogs. Real-time collaboration with teams and suppliers, synchronize your data with CAD, PLM and ERP systems. Easier than Excel and more advanced than CAD BOM' and is a CAD software in the photos & graphics category. There are four alternatives to OpenBOM (TM), not only websites but also apps for Windows and Mac. The best alternative is PartsBox, which is free. Other great sites and apps similar to OpenBOM (TM) are BOMIST, Aligni and Parts&Vendors.
PartsBox is an online app for keeping track of electronic parts and projects. It helps in managing parts inventory, supports designers by keeping documents (datasheets, PDFs, 3D models) together with part data, and provides BOM pricing with supplier selection.
Parts Inventory and BOM Management for Electronics.
Aligni is cloud-based software for product lifecycle and manufacturing management. Unified PLM and MRP for engineers, product designers, and manufacturers.
Parts&Vendors makes it easy to document your new product design as the work progresses. It keeps item specs, parts lists, notes, links to drawing files, links to web sites and vendor contact information all in one place and accessible.
Discontinued
They stopped issuing new licenses along time ago and the website is now officially only being kept online until December 2020, source: http://www.trilogydesign.com/index.htm