Group Accreditations

All of our manufacturing, assembly and testing processes follow meticulous quality procedures, consistently earning industry-wide approval for Westley Group products and services.

Accreditations and Approvals


Group Certificates
  • Tecnicas Reunidas
  • Tecnimont
  • Kuwait National Petroleum Company
  • Chigago Bridge & Iron Company
  • National Petroleum Construction Company
  • Oman Oil Refineries and Petroleum Industries Company
  • Dhafir Technology
  • Abu Dhabi National Oil Company
  • Dubai Civil Defence
  • Kuwait Oil Company
  • Petrofac
  • Samsung C&T Corporation
  • SNC-Lavalin Engineering Company
  • Saipem
  • Qatar Petroleum
  • Daewoo E&C
  • Samsung Engineering
  • POSCO Engineering
  • Consolidated Contractors Engineering Limited
  • Flour – Global Engineering & Construction Company
  • KBR Engineering Company
  • Worley Engineering Services Company
  • Kharafi National
  • Duro Felguera Construction Engineering Company
  • Gama Power Systems Construction
  • Engineering Company
  • Consolidated Contracts Company
  • ENPPI Engineering Company
  • Westland Certificate of Approval as supplier to Westland helicopters Limited
  • Rollys Royce Certificate of Approval 2018
  • Approval of Manufacturer Certificate: Approved Manufacturer of Copper Alloy Castings
  • Certificate of Foundry Facility and Process Approval: ABS
  • Rolls Royce: Nuclear Submarines Sector Quality Management System Approval Scope 2018
  • Lloyds Register: Copper Alloys Castings for Valves, Liners, Bushes and Fittings
  • Lloyds Register: Certificate of Approval of Quality Assurance ISO: 9001: 2015
  • Ministry of Defence: Quality Control Plan for the supply of gunmetal shaft liners
  • Lloyds Register: Francis W Birkett & Sons Ltd: ISO 9001:2015
  • Lloyds Register: Walter Frank & Sons Ltd: ISO 9001:2015
  • Certificate of Compliance Angle House Valves: FM Approvals Class 1521/1522 2014
  • Certificate of Compliance Model PRV9i FM Approvals Class 1521/1522 2018
  • Certificate of Compliance Angle Hose Valves 53 Series FM Approcvals Class 1521/1522 2014

Group Accreditations approvals