- Algor, Inc.
 - Both product information and technical support information for users of Algor design, engineering and analysis software for mechanical and civil engineers. - American Stress Technologies (AST)
- Offers residual stress, retained austenite, and process control instruments.
- CLI Corporation
- Provides engineering, construction, equipment and management services in the field of coal and mineral processing.
- Daedalus Design, Inc.
- Specialises in user-centric product development, industrial and communications design, ergonomics, and mechanical engineering.
- Eichleay Companies
- Full-service engineering, procurement and construction services to industry.
- Matco Associates
- Independent consulting engineering firm specialising in failure analysis, materials testing, selection/design, and corrosion investigations.
- Michael Baker Corporation@
- Pittsburgh Materials Technology
- Provides materials development, fabrication, testing, and characterization for high temperature alloys and metallic and non-metallic composites.
- Pressure Sciences Incorporated
- Mechanical design, analysis, failure, and remaining life. ASME qualification, fatigue, FEA stress, PSM, NDE evaluation, vessels, tanks, piping, API & B31.
- SAI Consulting Engineers, Inc.
- Providing design, inspection and construction management services.
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