YOUNGSVILLE, La.–(BUSINESS WIRE)–Quality Companies USA, a Youngsville-based oil and gas contractor operating in the Gulf of Mexico and throughout the U.S., has been awarded the ISO 9001:2008 certificate for its commitment to continuous improvement and quality. Quality Companies, which last year ranked No. 18 on ABiz’s list of the Top 50 private companies in the region ($123 million in 2014 revenues) comprises of Quality Construction and Production, Quality Production Management and Traco Production Services. ISO 9001:2008 is an international standard for quality management systems, which include a set of policies, processes and procedures to help an organization meet customer requirements. As part of the certification, an accredited third party auditing organization validated that the internal quality management system of Quality Companies USA complies with the ISO 9001:2008 standards set forth for the industry.