SGS Group SGS is the world’s leading inspection, verification, testing an d certification company, headquarter in Switzerland. SGS is recognized as the global benchmark for quality an d integrity. With more than 97,000 employees, SGS operates a network of over 2,600 offices an d laboratories around the world. SGS-CSTC Standards Technical Services Co., Ltd SGS-CSTC Standards Technical Services Co. Ltd. was founded in 1991, with an extensive network of 78 branches an d more than 150 laboratories we have more than 15,000 professionals working for us.