Clark Bros. Inc.

Clark Bros. Inc. dates to 1930, when Norman Clark and his brothers started the company in Dos Palos, Calif. It moved its headquarters to Fresno in 2015 and now works as a heavy civil and renewable energy contractor, building wind, solar and battery storage plants and water and wastewater facilities, with high-voltage work through sister company CBI Power. It showed up twice in ENR West’s 2026 energy awards. Clark Bros. was general contractor on the Gonzaga Ridge Wind Farm repowering near Los Banos for Scout Clean Energy, pulling 168 1980s-era turbines off a ridge in an open state park and replacing them with 25 machines totaling 150 MW. It was also civil contractor on AES’s Bellefield Solar Project 1 near Mojave.

Ownership at Clark Bros. has passed down a direct family line. After Norman Clark died in a plane crash in 1949, his teenage sons Allan and Norman Jr. kept the dirt-moving and farming business running, and the second generation incorporated Clark Bros., Inc. in California in 1962. Lawrence Clark joined in 1986, became president in 2002, and in 2018 bought the company from his siblings, taking the chief executive title with it. CBI Power, Inc., the high-voltage arm, was founded in 2012 under the name PGM Power.

That arm is what separates the firm from a straight earthmoving contractor. CBI Power performs engineer-procure-construct work on substations and switching stations: three 230kV substations and one at 500kV on the Darkstar project, substations from 34.5kV to 500kV at NOVA Power Bank, eleven miles of 230kV transmission line at Edwards Sanborn, plus system undergrounding, 230kV circuit duct bank construction, and duct bank for electrical and telecommunications.

Heavy civil is the other half, and the published scope is detailed: mass and fine grading, excavation, drilling, soil stabilization, roadway construction and paving, conduit and grounding installation, security walls, erosion control, SWPPP implementation, concrete structural vaults, and concrete piers and foundations. Water work adds treatment facility construction, water and wastewater piping, pond liners, land leveling and wetlands restoration, with design and engineering offered in-house and value engineering available before construction starts.

Battery storage has become a distinct line with real numbers behind it. Westside BESS Phase 1 is 131 MW and 524 MWh across more than 800 stacked lithium-ion cubes on roughly sixteen acres of desert ground beside an irrigation canal, tying into the California grid through an SDG&E substation. A High Desert project sits on more than 600 acres next to a 108 MW solar field, arranged as three rows of seven battery cubicles with a DC termination cabinet at the end of each row. The 11 Mile project combines solar and storage across more than 2,000 acres at 300 MW AC with four hours of battery capacity.

Two administrative facts matter to anyone prequalifying the firm. It states it is licensed in nineteen states, though the states are not named on the site. And safety reporting is wired into the project management system rather than kept on paper: a safety observation program lets any employee log a hazard, an unsafe act or a safe behavior by scanning a QR code, which feeds company-wide statistics.