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This is a list of major corporations headquartered in the metropolitan area of Pittsburgh, Pennsylvania.

There are nine Fortune 500 companies headquartered in the Pittsburgh metropolitan area.^[1]

• 120 PNC Financial Services (financial)
• 220 PPG Industries (industrial)
• 226 Howmet Aerospace (industrial)
• 245 Wesco International (industrial)
• 254 Viatris (pharmaceuticals)
• 310 U.S. Steel (industrial)
• 330 Alcoa (metals/mining)
• 362 Dick's Sporting Goods (retail/consumer goods)
• 388 Wabtec (industrial)

• American Eagle Outfitters (retail/consumer goods)
• Ampco Pittsburgh (industrial)
• Ansys (technology)
• Atlas Energy (energy)
• Aurora (technology)
• Calgon Carbon (industrial)
• Consol Energy (energy)
• Duolingo (technology)
• DynaVox (technology)
• EQT Corporation (Energy)
• Federated Investors (financial)
• F.N.B. Corporation (financial)
• Kennametal (industrial)
• Koppers (industrial)
• L.B. Foster Company (industrial)
• Mine Safety Appliances (industrial)
• Viatris (medical)

• 4moms (juvenile/robotics consumer goods)
• 84 Lumber (retail/consumer goods)
• American Bridge Company (industrial)
• Arconic (industrial)
• Argo AI (technology)
• Buchanan, Ingersoll & Rooney (law firm)
• Centimark^[2] (industrial contractor)
• Eat'n Park (retail/consumer goods)
• Farmers and Merchants Bank of Western Pennsylvania
• Giant Eagle (retail/consumer goods)
• Guru.com
• K&L Gates (law firm)
• NexTier Bank
• Pitt Ohio Express (services)
• Reed Smith (law firm)
• Vector Security (commercial/residential security)^[3]
• Vocelli Pizza (retail/consumer goods)
• Wexford Health Sources (healthcare)^[4][5]
• Zambelli Fireworks

• Allegheny Health Network (healthcare)
• Duquesne University (education)
• Highmark Health (third largest integrated health care delivery and financing system in the nation; parent company of Highmark Inc. and Allegheny Health Network)
• Highmark Inc. (healthcare)
• SAE International^{[6][failed verification]} (professional association)
• University of Pittsburgh Medical Center (healthcare)
• The Washington Hospital (healthcare)

• American Thermoplastic Company (industrial)
• Ariba (formerly Freemarkets)
• Covestro (chemicals)
• Dollar Bank (financial)
• DQE (energy)
• Eaton (electrical)
• FedEx Ground (services)
• Fox Learning Systems (e-learning)
• Heyl & Patterson Inc. (industrial)
• LANXESS (industrial)
• Laurel Networks
• Medrad Inc. (medical)
• Mine Safety Appliances (industrial)
• Niche (technology)
• Oxford Development Company
• Reich Publishing and Marketing
• StarKist (retail/consumer goods)
• IDI Consulting (technology)