Williams Lea Group Limited, branded Williams Lea, is a global company that offers business process outsourcing (BPO) to large companies. Founded in 1820 as a company providing printing services to the financial industry, Williams Lea went through a number of changes to its business model and now provides services including presentations and creative services, business and administrative support, and office services. The German postal and logistics company Deutsche Post bought a majority stake in the company in 2006. Williams Lea purchased the design and production agency Tag Worldwide in 2011, and adopted the company's name into its own brand. Deutsche Post sold Williams Lea Tag to Advent International in 2017. Advent International completed its purchase of Williams Lea Tag from Deutsche Post DHL Group. In 2023, Dentsu Group Inc. acquired Tag.

History

Williams Lea was founded in 1820 by John Wertheimer, who opened a printing business in London. Williams Lea Tag has undergone rapid expansion in recent years due to the rise in corporate outsourcing of support functions. Growth has largely been organic, but it has made several acquisitions: