| Abdel Hadi Al-Qahtani & Sons (AHQ) Trading & Distribution | | Saudi Arabia | Middle East | |
| ABS Group (Asia Pacific) Inspection & Testing | | USA | Asia-Pacific | |
| ADES International Drilling Contractors | | UAE | Middle East | |
| Agility (Oil & Gas Logistics) Logistics & Transport | | Kuwait | Middle East | |
| Applus+ Velosi Inspection & Testing | | Qatar | Middle East | |
| Arabian Drilling Company Drilling Contractors | | Saudi Arabia | Middle East | |
| ArcelorMittal South Africa – Tubular Mills & Manufacturers | | South Africa | Africa | |
| ArcelorMittal Tubular Products Jubail Mills & Manufacturers | | Saudi Arabia | Middle East | |
| Arecon Data (Oil Country OS) SCM & Software | | USA | Americas | |
| Argus Machine Co. Ltd. Yards & Threading | | Canada | Americas | |
| ASCO Group Logistics & Transport | | UK | Europe | |
| Aveng Trident Steel Trading & Distribution | | South Africa | Africa | |
| Bahri Logistics Logistics & Transport | | Saudi Arabia | Middle East | |
| Baoshan Iron & Steel (Baosteel) Mills & Manufacturers | | China | Asia-Pacific | |
| Bolloré Africa Logistics Logistics & Transport | | France | Africa | |
| Bureau Veritas – Middle East Inspection & Testing | | UAE | Middle East | |
| Bureau Veritas S.A. Inspection & Testing | | France | Europe | |
| China Oilfield Services (COSL) Drilling Contractors | | China | Asia-Pacific | |
| CQ Technical Services (CNPC) Inspection & Testing | | China | Asia-Pacific | |
| Dan Trading & Supply FZC Trading & Distribution | | UAE | Middle East | |
| DistributionNOW Trading & Distribution | | USA | Americas | |
| Egyptian Drilling Company (EDC) Drilling Contractors | | Egypt | Africa | |
| Energy One SCM & Software | | Australia | Australia | |
| EVRAZ plc Mills & Manufacturers | | UK | Europe | |
| GAC Group Logistics & Transport | | UAE | Middle East | |
| GAC Logistics (Middle East) Logistics & Transport | | UAE | Middle East | |
| Helmerich & Payne, Inc. Drilling Contractors | | USA | Americas | |
| Hunting Energy Asia Yards & Threading | | Singapore | Asia-Pacific | |
| Hunting Energy Services – ME Yards & Threading | | UAE | Middle East | |
| Hunting PLC Yards & Threading | | UK | Europe | |
| Imperial Logistics Logistics & Transport | | South Africa | Africa | |
| Interpipe Mills & Manufacturers | | Ukraine | Europe | |
| Intertek Testing Services – Africa Inspection & Testing | | UK | Africa | |
| IOT / RAU (Independent Oil Tools) Yards & Threading | | Egypt | Africa | |
| ISS – Oil & Gas Logistics & Transport | | Singapore | Asia-Pacific | |
| Japan Drilling Co. (JDC) Drilling Contractors | | Japan | Asia-Pacific | |
| JFE Steel Corp. Mills & Manufacturers | | Japan | Asia-Pacific | |
| Jindal SAW (Africa) Mills & Manufacturers | | UAE | Africa | |
| Jindal SAW Ltd. Mills & Manufacturers | | India | Asia-Pacific | |
| Jubail Energy Services Company (JESCO) Mills & Manufacturers | | Saudi Arabia | Middle East | |
| KCA Deutag Drilling Contractors | | UK | Europe | |
| Kuehne+Nagel Oil & Gas (SSA) Logistics & Transport | | Switzerland | Africa | |
| Kuwait Drilling Company (KDC) Drilling Contractors | | Kuwait | Middle East | |
| Mannesmann Line Pipe GmbH Trading & Distribution | | Germany | Europe | |
| Marubeni-Itochu Tubulars Gulf (MITG) Trading & Distribution | | UAE | Middle East | |
| Marubeni-Itochu Tubulars Oceania (MITO) Trading & Distribution | | Australia | Australia | |
| Mistras Group Inspection & Testing | | USA | Americas | |
| Mitsubishi Corp. RtM (Tubular) Trading & Distribution | | Japan | Asia-Pacific | |
| Nabors Arabia (SANAD JV) Drilling Contractors | | Saudi Arabia | Middle East | |
| Nabors Industries Ltd. Drilling Contractors | | Bermuda | Americas | |
| NDT CCS (KSA) Inspection & Testing | | Saudi Arabia | Middle East | |
| Nippon Steel Corp. Mills & Manufacturers | | Japan | Asia-Pacific | |
| Noble Corp. Drilling Contractors | | UK | Europe | |
| NOV Saudi – Al-Khobar Mills & Manufacturers | | Saudi Arabia | Middle East | |
| NOV Tuboscope Inspection & Testing | | USA | Americas | |
| OFS International LLC Yards & Threading | | USA | Americas | |
| Oilfield Traders Australia (OTA) Trading & Distribution | | Australia | Australia | |
| Oilfields Supply Center (OSC) Logistics & Transport | | UAE | Middle East | |
| P2 Energy Solutions SCM & Software | | USA | Americas | |
| Parker Drilling – Asia Drilling Contractors | | USA | Asia-Pacific | |
| Patterson-UTI Energy Drilling Contractors | | USA | Americas | |
| Peterson Energy Logistics Logistics & Transport | | Netherlands | Europe | |
| PipeSales (MISI) SCM & Software | | Japan | Asia-Pacific | |
| PipeSearch, Inc. SCM & Software | | USA | Americas | |
| Precision Drilling Corp. Drilling Contractors | | Canada | Americas | |
| Proclad (FTV Proclad UAE) Yards & Threading | | UAE | Middle East | |
| Saipem S.p.A. Drilling Contractors | | Italy | Europe | |
| Sapura Drilling Drilling Contractors | | Malaysia | Asia-Pacific | |
| SeAH Steel Mills & Manufacturers | | South Korea | Asia-Pacific | |
| SGS (Malaysia) Sdn Bhd Inspection & Testing | | Malaysia | Asia-Pacific | |
| SGS S.A. Inspection & Testing | | Switzerland | Europe | |
| SGS South Africa Inspection & Testing | | South Africa | Africa | |
| Shelf Drilling (Africa) Drilling Contractors | | UAE | Africa | |
| Sonatrach – ENTP Drilling Contractors | | Algeria | Africa | |
| Sooner, Inc. Trading & Distribution | | USA | Americas | |
| SpearTip Tubular Trading & Distribution | | USA | Americas | |
| Stewarts & Lloyds (South Africa) Trading & Distribution | | South Africa | Africa | |
| Sumitomo Corp. Middle East Trading & Distribution | | UAE | Middle East | |
| Sumitomo Corporation Trading & Distribution | | Japan | Asia-Pacific | |
| Tenaris S.A. Mills & Manufacturers | | Luxembourg | Europe | |
| TenarisSaudiSteelPipes Mills & Manufacturers | | Saudi Arabia | Middle East | |
| Threading & Precision Mfg. Co. (TPM) Yards & Threading | | Oman | Middle East | |
| Tianjin Pipe (Group) Co. (TPCO) Mills & Manufacturers | | China | Asia-Pacific | |
| Tianjin Pipe (Saudi) Co. Mills & Manufacturers | | UAE | Middle East | |
| TimkenSteel Corp. Mills & Manufacturers | | USA | Americas | |
| TMK (PAO TMK) Mills & Manufacturers | | Russia | Europe | |
| Toll Group Logistics & Transport | | Australia | Australia | |
| Transocean Ltd. Drilling Contractors | | Switzerland | Europe | |
| Tubular Transport & Logistics Logistics & Transport | | USA | Americas | |
| TÜV NORD Group Inspection & Testing | | Germany | Europe | |
| TÜV SÜD Middle East Inspection & Testing | | UAE | Middle East | |
| U.S. Steel Tubular Products Mills & Manufacturers | | USA | Americas | |
| Vallourec S.A. Mills & Manufacturers | | France | Europe | |
| VAM Middle East (Vallourec) Yards & Threading | | UAE | Middle East | |
| VAM Services (Vallourec) Yards & Threading | | France | Europe | |
| VAM Services Indonesia Yards & Threading | | Indonesia | Asia-Pacific | |
| Van Leeuwen Pipe & Tube Group Trading & Distribution | | Netherlands | Europe | |
| Velosi (Applus+ Velosi) Inspection & Testing | | Qatar | Africa | |
| voestalpine Tubulars GmbH Mills & Manufacturers | | Austria | Europe | |
| Yusen Logistics (Nippon Yusen) Logistics & Transport | | Japan | Asia-Pacific | |