Marner, Inc

Front Range Precast Concrete has served the onsite wastewater industry since 1947. Our technical representatives and staff have over 60 years experience in the industry, and we take pride in our commitment to protecting the environment from groundwat

Zimmerman Metals provides architectural metal and steel fabrication services to customers along the Front Range in Colorado. It also manufactures a variety of machinery, including fabricating and formatting machinery and equipment. The company offers portable roll formers designed to help contractors control deliveries, reduce waste and handling and keep metal panels in-house. Zimmerman also assists with training of the production equipment as well as installation of panels themselves. Zimmerman was founded in 1936 and is based in Denver.

Prototype Casting was founded in 1995 in a small 2000 sqft shop just north of Denver,Colorado by Mike Kaiser and Kevin Fortan. Prototype Casting Inc., was founded on speed and 3D printing technology. The tooling process that was used to create molds started with SLA's, urethane and silicon tooling was created from the 3D pattern. These tools were used to create plaster molds. Metal was then poured into the plaster mold to create the casting. In 1998 Prototype Casting moved to a larger shop in Northglenn CO. Prototype Casting continued to grow and in 2000 moved to part of its current location in Denver. Mike Kaiser retired in 2011 and sold the business to longtime employee Chad TeBeest. Currently Prototype Casting occupies a total of 24,000 sqft.