| tms.org | TMS - The Minerals, Metals & Materials Society |
| aga.org | The American Gas Association |
| aapg.org | The American Association of Petroleum Geologists |
| asee.org | ASEE.org - American Society for Engineering Education |
| ansi.org | American National Standards Institute |
| aisc.org | American Institute of Steel Construction (AISC) |
| acec.org | American Council Of Engineering Companies - Acec |
| steel.org | American Iron and Steel Institute |
| smenet.org | SME - Society for Mining, Metallurgy and Exploration |
| asme.org | American Society of Mechanical Engineers |
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