The Adecco Group is a Swiss–French company based in Zürich, Switzerland. It is the world's second largest Human Resources provider and temporary staffing firm, and a Fortune Global 500 company. In 2021, Adecco claimed to have placed 113,000 people in permanent employment and daily placed 300,000 people in precariat jobs. With the expansion of its operations to China, its number totals up to 3.5 million. The company was formed officially on 1 January 1997 as a result of the merger of the French company Ecco and the Swiss company Adia Interim, and is listed on the SIX Swiss Exchange. Adia was established in 1957 in Lausanne by Henri Lavanchy. Ecco was founded in Lyon at the initiative of Philippe Foriel Destezet. In 2000, The Adecco Group acquired Olsten Staffing, in the US, becoming the number one recruitment company in that country. In 2010, it acquired MPS Group and thus became the number one company worldwide. The Adecco Group is the parent company of three Global Business units: Adecco, Akkodis, and LHH, and brands such as Pontoon, General Assembly, HIRED, EZRA and Adia. Wikipedia