O-A, Inc. 325 Silver St., Agawam, MA 01001-0250 (413) 789-1800 F: (413) 789-1803 - Facilities
O-D Tool & Cutter, Inc. 150 Gilbert Street, Mansfield, MA 02048 (508) 339-7507 F: (508) 339-5667 - Facilities

OCO Tool Company 109 N. Olive St. Santa Paula CA (805) 933-8111 F: (805) 525-5683 Blog - Facilities
ORT - 6555 South Dixie Hwy. Erie, MI 48133 (734) 848-6845 F:(734) 848-4308 - Facilities

ODAT 20 Sanford Drive Gorham ME 04038 (207) 854-2455 F: (207) 854-2310 - Facilities (pdf)

Oak Products 7200 Fenwick Lane Westminster, CA 92683 (714) 897- 8031 F: (714) 897-6502 Map - Facilities
Oberg Industries 2301 Silverville Rd. Freeport, PA 16229-0315 (724) 295-2121 F: (724) 295-2588 - Facilities
Orbital Machining 1990 Deer Valley Dr. Idaho Falls, ID 83401 (866) 855-2601 - Facilities
Orchid International 94 Belinda Pkwy Mount Juliet, TN 37122-3600 (615) 754-6600 F: (615) 754-6606 - Facilities
Orlotronics Corp. 401 East 4th St., Building 4 Bridgeport, PA 19405-1815 (610) 239-8200 F: (610) 239-8211 - Facilities
Omnimetics Precision Machining 13389 Murphy Road Stafford, TX 77477 (281) 499-6528 F : (281) 499-6520 Map - Facilities
Oneda Corporation 4000 Oneda Drive, Columbus, GA 31907 (706) 569-7030 F: (706) 561-8596 - Facilities
Orion Mfg., Inc., 480 Apple Tree Dr. Ionia, MI 48846-8512 (616) 527-5994 F: (616) 527-9217 / (866) 662-7928 - Facilities
Overton Industries - Overton & Sons Tool & Die Co. 1250 Old State Rd 67 South Mooresville, IN 46158 (317) 831-4542 - Facilities
Overton Industries - Overton Carbide Tool & Engineering 2155 McClain Drive Franklin, IN 46131 (317) 736-7700 - Facilities
Overton Industries - Overton Mold Company, Inc. 1248 Old State Road 67 South Mooresville, IN 46158 (317) 831-9595 - Facilities
Overton Industries - Overton & Sons Tool & Die Co. 9 Jonco Road Shawnee, OK 74804 (405) 275-4597 - Facilities

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