William S. Yearsley

Real Goods Solar, Inc. engages in the provision of solar energy systems to homeowners and commercial building owners. It offers turnkey services, including design, procurement, permitting, build-out, grid connection, financing referrals, and warranty and customer satisfaction activities. The company was founded in 1978 and is headquartered in Boxborough, MA.

Part of Goonvean Holdings Ltd., Redland Aggregates Ltd. is a British company that specializes in sand and gravel, stone quarrying, road surfacing materials, road surfacing and concrete products. The company is based in Reigate, UK. Redland Aggregates was acquired by Goonvean Ltd. on September 01, 1995 for $12.85 million.

American Civil Constructors provides construction services. Its services include civil infrastructure, mining and industrial. The company was founded by William S. Yearsley in 1999 and is headquartered in Littleton, CO.

Milender White Construction Co. provides comprehensive pre-construction and construction management services. It offers pre-construction, general contracting, design and build and restoration and rehabilitation. The company was founded by Bryon White and Mike Milender in 1997 and is located in Arvada, CO.

Terra Co2 Technologies Ltd. is a Canadian company that manufactures portland cement. The CEO of the company is William S. Yearsley.

Tri-Arc LLC provides workplace safety services. It engages in solving climbing and access problems relating to code compliance and productivity. Its products include engineered access solutions, work platforms, ladders, verastep and gates & guardrails. The company was founded in 1947 and is headquartered in Pittsburgh, PA.

Sioux Creek Silica LLC is a private company based in Chetek, CO. William S. Yearsley has been the CEO of the company since 2014.