- Applied Metals Science Inc
- Bartlett Engineering
- Bowers Consultantcy
- Bowers Consultantcy
- David N French Inc
- Jimona Inc
- Lasweld Corp
- Lasweld Corp
- Lasweld Corp
- Lasweld Corp
- Materials Technology
- Metallurgical & Materials Tech
- Partek Laboratories Welder
- Sherry Laboratories Inc
- Technical Marketing Resources
- Thyssen Krupp VDM
- Ticket Metallurgical Consult
- Walson & Co
