Prefabricated Metal Building and Component Manufacturing, Fabricated Structural Metal Manufacturing, Plate Work Manufacturing, Sheet Metal Work Manufacturing, Aircraft Manufacturing

ALTOONA

Hardware Manufacturing, Machine Shops, Precision Turned Product Manufacturing, Small Arms Manufacturing, All Other Miscellaneous Fabricated Metal Product Manufacturing

Hardware Manufacturing, Bolt, Nut, Screw, Rivet, and Washer Manufacturing, Ball and Roller Bearing Manufacturing, Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial, All Other Miscellaneous Electrical Equipment and Component Manufacturing

Hardware Manufacturing, Machine Shops, Precision Turned Product Manufacturing, Small Arms Manufacturing, All Other Miscellaneous Fabricated Metal Product Manufacturing

Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding, Other Fabricated Wire Product Manufacturing, Other Communications Equipment Manufacturing, Other Communication and Energy Wire Manufacturing, Aircraft Manufacturing

Other Engine Equipment Manufacturing, General Automotive Repair, Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Main, Home and Garden Equipment Repair and Maintenance

Aircraft Engine and Engine Parts Manufacturing, Other Aircraft Parts and Auxiliary Equipment Manufacturing

Electrical Contractors, Switchgear and Switchboard Apparatus Manufacturing, Motor Vehicle Transmission and Power Train Parts Manufacturing, Motor Vehicle Supplies and New Parts Merchant Wholesalers, Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers

Rubber and Plastics Hoses and Belting Manufacturing, Bolt, Nut, Screw, Rivet, and Washer Manufacturing, Plumbing Fixture Fitting and Trim Manufacturing, Other Metal Valve and Pipe Fitting Manufacturing, Ball and Roller Bearing Manufacturing

All Other Transportation Equipment Manufacturing

Other Building Equipment Contractors, Telephone Apparatus Manufacturing, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing, Other Communications Equipment Manufacturing, Other Electronic Component Manufacturing

Hardware Manufacturing, Machine Shops, Precision Turned Product Manufacturing, Small Arms Ammunition Manufacturing, Small Arms Manufacturing

PITTSBURGH

Hardware Manufacturing, Machine Shops, Precision Turned Product Manufacturing, Small Arms Manufacturing, All Other Miscellaneous Fabricated Metal Product Manufacturing

Construction Machinery Manufacturing, Overhead Traveling Crane, Hoist, and Monorail System Manufacturing, Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing, Military Armored Vehicle, Tank, and Tank Component Manufacturing, Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers

Ship Building and Repairing, Boat Building

Ship Building and Repairing, Architectural Services, Engineering Services

Explosives Manufacturing, Ammunition (except Small Arms) Manufacturing, Light Truck and Utility Vehicle Manufacturing, Guided Missile and Space Vehicle Manufacturing, Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing

Hardware Manufacturing, Machine Shops, Precision Turned Product Manufacturing, Small Arms Manufacturing, All Other Miscellaneous Fabricated Metal Product Manufacturing