Tetra Tech, Inc. has announced that its offer to acquire all of the outstanding shares of WYG plc through a United Kingdom (UK) court-approved scheme of arrangement has become effective and the transaction has closed. Trading in WYG shares on the London Stock Exchange has been suspended and the outstanding shares of WYG are now owned by Tetra Tech.

WYG employs 1,600 staff primarily in the UK and Europe, delivering consulting and engineering solutions for complex projects across key service areas including planning, water and environment, transport, infrastructure, the built environment, architecture, urban design, surveying, asset management, program management, and international development.

WYG expands Tetra Tech’s geographic presence and positions Tetra Tech as a leading global consulting, engineering and program management firm focused on water, environment and infrastructure. In addition, WYG enhances Tetra Tech’s international development business both for the European Union and the United Kingdom’s Department for International Development. Collectively, its expanded presence in the UK provides a strong platform for growth in the UK and Europe.