SGS (formerly Société Générale de Surveillance) is a Swiss multinational company headquartered in Geneva, Switzerland which provides inspection, verification, testing and certification services.

It has more than 89,000 employees and operates over 2,600 offices and laboratories worldwide. It ranked on Forbes Global 2000 in 2015, 2016 and 2017. 

The core services offered by SGS include the inspection and verification of the quantity, weight and quality of traded goods, the testing of product quality and performance against various health, safety and regulatory standards, and to make sure that products, systems or services meet the requirements of standards set by governments, standardization bodies or by SGS customers.

The company works in the following industries: agriculture and food, chemical, construction, consumer goods and retail, energy, finance, industrial manufacturing, life sciences, logistics, mining, oil and gas, public sector and transportation.

According to en.wikipedia