Berkel is a 100% employee-owned/ESOP company, that has provided service to our customers since being incorporated in the State of Kansas on September 21, 1959 by Charles J. Berkel for the purpose of performing specialty foundation work throughout the continental United States. Berkel has grown to become one of the largest designers and installers of deep foundations, ground improvement, excavation support and st…

Geopier Foundation Company developed the first Rammed Aggregate Pier® (RAP) system in 1989. Today, Geopier® solutions provide an efficient and cost-effective Intermediate Foundation® solution for the support of structures. Through continual research and development, we’ve expanded our system capabilities to meet virtually all of your ground improvement challenges.   Specializing in Rammed Aggregate Pier®, Rigi…

We produce Geotechnical, Geophysical and Environmental research machinery and accessories which can satisfy all In-Situ Geotechnical Testing requirements. With 40 years of experience designing and manufacturing penetrometers, we are a leder in technological research, thanks in part to permanent partnership with universities and research centres around the globe.

IDEAL Foundation Systems is the exclusive provider of the patented STELCOR Drilled-in Displacement Micropile (DDM) and high capacity helical pipe piles. The IDEAL Group of companies has evolved and grown over four generations of construction and design experience. We have a dynamic group of team players focused on your company’s projects and challenges. Combine decades of in-the-trench experience with the manufactu…

Gilson Company, Inc. is a global manufacturer and distributor of quality materials testing equipment with over 75 years of experience. We specialize in products serving the soils, concrete, asphalt and aggregate industries. Our complete selection of sieves, sieve shakers, and soils testing equipment is the most comprehensive in the industry, and your best choice for reliable analysis of many materials. Now in our thi…

GeoLogismiki is a Greek software company that develops software programs for geotechnical engineering tasks. We target specifically the Cone Penetration Test, offering software programs for the interpretation and presentation of CPT data and CPT based soil liquefaction analysis. Some of our other software programs address footing settlements analysis and design of stone columns.

Established in 2006, Rockridge Geotechnical is a certified Small Business in the State of California, a Small Local Emerging Business in the County of Alameda, as well as a Small Local Business Enterprise in the City of Oakland. With over 70 years of total combined experience in the geotechnical engineering field, Rockridge Geotechnical engineers are knowledgeable, professional, and experts in their field. 2016 marke…