In business since 1958, Clark Bros. Inc. has been performing heavy civil work for three generations. Clark Bros. Inc. (CBI) entered the renewables market in 2009 with the CalRENEW1 project, the first utility-scale power project to be transmission-interconnected in California. Since then CBI has performed earthwork, concrete, trenching, drilling, paving and much more on over 715 MW of contracted work. In 2015 CBI branched out into pier pounding by purchasing their first pier pounding equipment. Contracts to perform these services were initiated for the 2016 calendar year.