Gateway Geotechnical, LLC (Gateway) is a technically and personally focused, geotechnical and construction services firm, formed in July, 2006.  Our key staff brings to you and your projects a highly qualified team, with a combined 50-plus years of experience in the local geotechnical and construction community.                                                                      Gateway's office and laboratory.        Gateway is located in Chesterfield Valley, with our own complete in-house soils and materials testing laboratory.  We maintain current professional engineering registration in Missouri, Illinois, Indiana, and Iowa.