Keller Group

Keller Group is the world's largest geotechnical specialist contractor, providing engineered ground solutions across the construction sector. The company works from design and build through to on-site delivery, and traces its origins to Johann Keller, who founded the business in Germany in 1860. It has operated for more than 160 years.

Its technical work spans geotechnical engineering, ground improvement, grouting, deep foundations, earth retention, marine construction, instrumentation and monitoring, slope stabilisation, and settlement and seepage management. Service lines include ground improvement to increase the bearing capacity of soils; grouting as part of geotechnical ground treatment; deep foundation design and installation; excavation support and earth retention systems; geotechnical construction solutions for marine environments; and monitoring and instrumentation for geotechnical projects.

Keller supports commercial, industrial, infrastructure, public, power and residential projects, with further activity across mining and marine construction. The group combines global resources with local businesses and local knowledge, operating worldwide through local operations alongside its German founding base.

The company states an emphasis on safe, successful project delivery, on sustainability and solutions supporting a more sustainable future, and on specialist expertise and practical experience.