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American Petroleum Institute

API Q1

Quality Management System Requirements for Organizations Providing Products for the Petroleum and Natural Gas Industry

2060 companies listed on Oilfield Index hold API Q1 (Quality Management System Requirements for Organizations Providing Products for the Petroleum and Natural Gas Industry), issued by the American Petroleum Institute.

Categories these companies serve

Manufacturing & Fabrication 1117Wellhead Equipment — Unspecified 500Valves — Unspecified 399Custom Fabrication 345Drilling 321OCTG — Unspecified 294Machine Shop Services 294Drilling Equipment — Unspecified 230Blowout Preventers — Unspecified 219Well Control & Pressure Control 203Gate Valves 203Christmas Trees — Unspecified 177

Certified companies 2060

“API Composite List” means the company holds an active licence for this specification on the American Petroleum Institute’s public Composite List; “claimed by vendor” means the company lists it and the list does not confirm it. Certificate files are available to signed-in members. Claim your listing to keep yours current.