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 Heider Inspection Group

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


The ETS Family of Companies includes:

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 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.

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 is located in Moreno Valley, California.vv

Materials Testing & Inspection, Inc. (MTI) provides a full range of environmental, geotechnical engineering, and materials inspection and testing services. Headquartered in Boise, ID, MTI offers services from five offices in Idaho, Oregon, and Washington.