Keller Group plc operates as the world's largest geotechnical engineering contractor, tracing its origins back to 1860. The company specializes in preparing and stabilizing ground for major construction projects, offering services such as piling, earth retention, marine structures, and slope stabilization. Keller organizes its operations geographically into three main divisions: North America, Europe, and Asia-Pacific, Middle East, and Africa. Its solutions are critical for complex engineering needs, ensuring weak or difficult soil is safe to build on before or during construction. The company serves a diverse client base, including contractors, developers, infrastructure owners, and public bodies, undertaking thousands of projects annually across various end markets.