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The Engineering and Testing Services (ETS) Family of Companies

is comprised of nearly 500 people and consists of Consolidated Engineering Laboratories, CEL Consulting Inc. Geosphere Consultants Inc., United Inspection and Testing, Heider Inspection Group, and Materials Testing and Inspection. Whether your project is big, small, complicated, or simple, ETS can provide you with a full range of construction services. We are your “Partners in Quality.”

Here is a brief details about The ETS Family:

  • Consolidated Engineering Laboratories (CEL)

    is a leader in providing quality materials testing, and construction inspection services. With corporate headquarters in San Ramon and full-service facilities in Oakland, Santa Rosa and Sacramento, California, CEL’s testing and inspection agency is the largest in Northern California with unequaled resources and capabilities. CEL is also located in Salt Lake City, Utah, and Honolulu, Hawaii.

  • Geosphere Consultants, Inc. (GEO)

    was created to deepen and enhance our engineering capabilities and add additional professional consulting services including Environmental Management and Engineering Geology. Our professional Engineers, Geologists, and Environmental Scientists have a wide range of experience in numerous sectors. Geosphere Consultants, Inc. with offices throughout California, is an independent company within the Engineering Testing Services (ETS) Family of Companies. Geosphere Consultants Inc. was created in 2007 as extension and growth of the previous 10 years of Consolidated Engineering Laboratories Geotechnical Engineering Division.

  • Heider Inspection Group (HIG)

    performs geotechnical engineering, material testing and special inspection in the Southern California region. HIG have a full service laboratory, which is DSA and Los Angeles City certified. Heider Inspection Group is headquartered in Ontario, CA.

  • CEL Consulting, Inc.

    provides innovative solutions to construction problems, as well as quality control testing and inspection for construction material manufacturers around the world. CEL Consulting is headquartered in Oakland, CA.

  • United Inspection and Testing (UIT)

    provides materials testing, special inspection and geotechnical engineering to the Southern California region. United has a proven record of meeting all geotechnical engineering, materials testing and special inspection requirements while continually searching for ways to minimize the owner's cost and adding value to the project. United is located in Moreno Valley, California.

  • Materials Testing & Inspection, Inc. (MTI)

    provides a full range of environmental, geotechnical engineering, non-destructive testing and materials inspection and testing services. Headquartered in Boise, Idaho - with regional offices in Idaho Falls, ID, Twin Falls, ID, Pocatello, ID, Ontario, OR, and Walla Walla, WA - Materials Testing & Inspection’s teams are well positioned to support clients throughout the Northwest.

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