O'Hara Metal Products. Precision parts manufacturing and engineering.

Oak Ridge Tool-Engineering. Providing precision tooling, machining, engineering, manufacturing, and testing.

OEMetrix Component Solutions. Custom component manufacturer of metal stampings, assemblies, zinc and aluminum die casts, CNC machined parts, aluminum and brass extrusions, and brass forgings for OEMs.

Okanagan Precision Machine. Offers mill, lathe, CNC, prototyping, and other machining services.

OLM S.r.L. Italy. Engineering company specializing in custom design, manufacture, and supply of precision machinery. Site incorporates flow chart of process from conception to finished product.

Omega Precision Corp. Manufacturer of precision metal stampings for many major suppliers of electronic, computer and medical products.

Orbital Tool Technologies, Corp. Emergency on-site machining, welding, and steam path repair services.

Osco Industries, Inc. Manufacturer of gray iron castings.

Ostling/Tykma Marking Systems Provides permanent marking systems for identification and traceability.

Owens Industries, Inc. Offers high precision CNC machining and wire EDM work.

Oxford Engineered Materials Corp. Metal Products Division. Imports custom manufactured castings, forgings, CNC machining, and steel tubing.

P. C. Hone, Inc. Industrial I.D. and O.D. honing.

Pacific Die Casting Corporation. Manufacturer of custom aluminum and zinc die castings.

Pacific Mako Foundry and machine shop producing aluminum and bronze castings for a variety of different applications.

Palmer Engineered Products. Specializes in providing products made for automatic molding machines.

Panel Processing Incorporated. Description of the inventory and curtain coating, perforating, cutting, machining, screen printing, laminating and other services.

Parallel Ventures, Inc. Precision job shop specializing in complex machined components.

Path Technologies, Inc. Machining services include EDM wire, plunge, small hole, stamping, and CNC.

PCI Energy Services. Field machining, welding, tool design and engineering for the energy industry.

PE Ceramic Company. Machined ceramic parts and assemblies.