| 3D Systems | Rock Hill, SC | (803) 207-3152 |
| 3DCeram Inc | Grand Ledge, MI | |
| 76th Commodities Maintenance Group | Tinker AFB, OK | (405) 734-3921 |
| A F Gelhar Co Inc | Markesan, WI | (920) 398-3566 |
| A F K Corp | Ripon, WI | (920) 748-2265 |
| A W Bell Pty Ltd | Dandenong South, Victoria, Australia | 61397999555 |
| A Y McDonald Mfg Co | Dubuque, IA | (563) 583-7311 |
| Aalberts Integrated Piping Systems | Matthews, NC | (704) 841-6000 |
| Aalberts Integrated Piping Systems | Myrtle Beach, SC | (843) 347-4666 |
| Aalberts Integrated Piping Systems | Pageland, SC | (843) 672-1508 |
| Aalberts Surface Technologies | Canton, OH | (330) 478-0314 |
| Aalberts Surface Technologies | Defiance, OH | (419) 782-7200 |
| Aalberts Surface Technologies | Fort Smith, AR | (479) 358-8555 |
| Aalberts Surface Technologies | Goffstown, NH | (603) 945-3753 |
| Aalberts Surface Technologies | Greenville, SC | (864) 213-9310 |
| Aalberts Surface Technologies | Greenville, SC | (864) 288-9111 |
| Aalberts Surface Technologies | Lansing, MI | (517) 485-5090 |
| Aalberts Surface Technologies | Lansing, MI | (800) 648-1687 |
| Aalberts Surface Technologies | Livonia, MI | (734) 464-8000 |
| Aalberts Surface Technologies | Livonia, MI | (734) 464-2030 |
| Aalberts Surface Technologies | Livonia, MI | (812) 346-1275 |
| Aalberts Surface Technologies | Manchester, CT | (860) 791-2353 |
| Aalberts Surface Technologies | Oshkosh, WI | (920) 235-2001 |
| Aalberts Surface Technologies | Pleasant Prairie, WI | (800) 648-1687 |
| Aalberts Surface Technologies | Saginaw, MI | (989) 752-2819 |
| Aalberts Surface Technologies | Wabash, IN | (260) 563-8321 |
| Aalberts Surface Technologies | Wadsworth, OH | (330) 336-0211 |
| ABC Coke | Birmingham, AL | (205) 849-1300 |
| ABC Coke Drummond | Birmingham, AL | |
| ABP Induction LLC | Massillon, OH | (330) 830-6252 |
| ABP Induction LLC | N Brunswick, NJ | (732) 932-6400 |
| Abrasive Technology | Elgin, IL | |
| Abrasive Technology | Lewis Center, OH | (740) 548-4100 |
| Abrasive Technology Ltd | Conwy North Wales, United Kingdom | |
| Abrasive Technology Ltd | Lichfield, Staffordshire, United Kingdom | |
| Accucam Machining | Cambridge, ON, Canada | (519) 650-1307 |
| Acme Foundry Inc | Coffeyville, KS | (620) 251-6800 |
| Adalet | Cleveland, OH | (216) 267-9000 |
| Advanced Material Solutions | Chandler, AZ | (574) 304-0743 |
| Advanced Pattern Works | Collinsville, IL | (618) 346-9039 |
| Advantage Metals Recycling LLC | Kansas City, MO | (816) 922-5100 |
| AERO Metals Inc | La Porte, IN | (219) 326-1976 |
| Affival an Opta Group Company | New Kensington, PA | (412) 826-9430 |
| AFS Institute | Schaumburg, IL | (847) 824-0181 |
| AFS Washington Office | Washington, DC | (571) 242-0186 |
| Air Products & Chemicals Inc | Allentown, PA | (610) 481-5642 |
| Airfoil Impellers | College Station, TX | (979) 822-6418 |
| Ajax Tocco Magnethermic Canada Ltd | Ajax, ON, Canada | (905)683-4980 |
| Ajax Tocco Magnethermic Corp | Albertville, AL | (256) 593-7770 |
| Ajax Tocco Magnethermic Corp | Longview, TX | (903) 297-2526 |