To provide Geotechnical Engineering Services and construction Testing and Inspection Services to the architectural, engineering and construction industries of the highest quality so that our clients will receive superior value and our employees will grow and develop and share in the company's success


Geotechnical engineering is the building block to designing cost effective projects as well remedial action of existing distressed sites. Geotechnical explorations provide subsurface information that allows designers to be able to build on a site so that future problems are minimized and also provide remedial recommendations for existing distressed structures.

Certified Testing's Geotechnical Engineering Service brings over 20 years of experience in the Iowa, Nebraska and South Dakota regions. Certified Testing Service's experience in geotechnical engineering varies from residential structures and large commercial structures to include roadway and utility explorations, dam and lagoon explorations and monitoring of settlement for large structural fill areas as well as many other areas.


Construction projects require precise planning, careful design and rigorous execution. Rigid specifications, demanding schedules and exacting budgets must be met. Accurate testing and proper quality control are absolute necessities.

Certified Testing's Construction Service handles a wide variety of projects – from residential properties to major power plants. Certified Testing provides construction services on a full-time or on-call basis depending on our clients needs. Certified Testing also performs numerous types of materials testing and can design specialized tests to meet the unique needs of a project.