Keller Group plc is the world's largest geotechnical specialist contractor, providing ground engineering solutions including ground improvement, grouting, deep foundations, earth retention, marine works, instrumentation and monitoring, post-tension systems and industrial services. The company offers techniques such as bearing capacity improvement, low carbon construction, containment, excavation support, stabilisation, seepage control, slope stabilisation and monitoring solutions to the construction sector across commercial, industrial, infrastructure, institutional, power and residential markets. Founded in 1860 and headquartered in London, United Kingdom, Keller operates in North America, Europe, the Middle East and Asia-Pacific regions through approximately 10,000 employees. Recent developments include the acquisition of Piling Contractors in Australia to expand its piling capabilities; the launch of a multi-year share buyback programme with an initial £25 million tranche followed by a second £25 million tranche in 2025; record revenue of approximately £1.5 billion for 2024 with improved operating margins; and a directorate change appointing James Wroath as incoming CEO following Mike Speakman's departure.