The Adecco Group

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. It is a Fortune Global 500 company and is listed on the SIX Swiss Exchange.

Services offered by the group include temporary staffing, permanent job placement, career transition, and talent development in the office, industrial, technical, financial, and legal sectors, as well as business process outsourcing and consulting. the company had placed 115,000 workers in full time employment and had 500,000 workers in temporary roles daily. It operates three global business units: Adecco, Akkodis, and LHH. Its operating brands include Badenoch & Clark, DIS AG, General Assembly, Innovation Foundation, Lee Hecht Harrison, Modis, Pontoon, Spring Professional, and Yoss.

The company was formed on 1 January 1997 by the merger of the French company Ecco, founded in Lyon in 1957, and the Swiss company Adia Interim, founded in Lausanne in 1957 as Adia.

Mergers and acquisitions

 * 1957: Adia founded
 * 1964: Ecco founded
 * 1997: Ecco and Adia Interim merge to form a network of 2,500 branches and 250,000 staff with an annual revenue of €5.4 billion
 * 1997: Acquires US temporary staffing company TAD Resources International of Cambridge, Massachusetts for $387.5 million
 * 2000: Acquires Olsten Staffing, and becomes the largest recruitment company in the US, with a combined revenue of €11.6 billion
 * 2009: Acquires UK recruitment company Spring Group
 * 2010: Acquires US staffing firm MPS Group of Jacksonville, Florida
 * 2011: Begins a joint venture in Shanghai with Chinese HR services company FESCO. and acquires US-based Drake Beam Morin, Inc.
 * 2012: Acquires Japanese staffing service VSN Inc.
 * 2014: Acquires US freelance worker-on-demand company OnForce of Lexington, Kentucky
 * 2015: Acquires Canadian recruitment services company Knightsbridge Human Capital Solutions, a Canadian company offering career transition, talent and leadership development Alain Dehaze becomes CEO
 * 2016: Acquires UK recruitment services company Penna Consulting PLC
 * 2018: Acquires US private educational organization General Assembly and recruitment marketplace Vettery
 * 2019: Divests its holding of US healthcare staffing business Soliant Health to Olympus Partners for a cash consideration of $612 million
 * 2020: Vettery purchases competing tech marketplace Hired for an undisclosed amount and combines the two business's products under the Hired brand
 * 2022: Denis Machuel replaces Alain Dehaze as CEO