Allegria Software, now a subsidiary of BPOMS, Inc. provides innovative web-based collaborative and document management tools for engineering and manufacturing companies, including a full range of enterprise-wide solutions that can stand firmly on their own or can enhance the efficiency and effectiveness of any existing document/data management system.  
 
The Allegria product line includes
eReview: real-time online collaboration of image files and computer data
ForReview: (Professional, Web Plug-In, Integrations): visualization,
markup, printing, and sharing of graphics files, CAD drawings, and other documents.
gXconvert: industrial-strength batch file conversion
gXnetPlot:   enterprise-wide network plot management
Spinfire:   easy and inexpensive 3D CAD file visualization and markup.