With over 22 years in the industry, Twining Consulting, has the project experience and industry resources to provide the most cost efficient testing, inspection and engineering services in California. TC currently has five laboratory locations conveniently located throughout the San Diego, Orange, Sacramento, Riverside, Los Angeles, and Ventura counties. We take pride in supporting the local communities we do business in by providing high quality jobs to employees with a range of skill sets. While we recognize that the true measure of our performance rests in the safety and durability of the structures we are involved with, client satisfaction is of the utmost importance to us. We provide value by utilizing: