Guardian Prefab traces its roots to 2014, when EMT Abraham Taub turned a converted porta-potty into a guard shack and founded Guardian Booth in Orangeburg, New York. The company later expanded through a Juarez manufacturing facility and the 2022 acquisition of Homes by Keystone, moving its headquarters to Waynesboro, Pennsylvania, where 65–70 employees work across three shifts. Today, Guardian Prefab builds custom modular structures for customers across North America.
Residential Warranty Corporation (RWC) 10 Year Warranty Program
Westchester Modular Homes, IncFounded in 1986, Westchester Modular Homes, Inc. is an employee-owned manufacturer of custom modular homes, producing them in a climate-controlled factory headquartered in Wingdale, New York. The company reports having manufactured and set more than 8,000 homes, and also builds modular multifamily and commercial buildings. Its factory production is coordinated with independent builders, who complete homes at their sites.WINGDALE, NY
Horizon Structures LLCFounded by Dave Zook in 2001, Horizon Structures is a family-owned Pennsylvania manufacturer of Amish-built prefabricated barns, kennels and other structures for farms, homes and government agencies. The company grew from simple run-in sheds and shed-row barns into a nationwide operation, with an approximately 65,000-square-foot facility employing 80–90 Amish carpenters and a nine-person sales and support staff. Its buildings are delivered across 46 states and backed by written warranty coverage.ATGLEN, PA
Ebtech IndustrialFounded in 1995 and based in Connellsville, Pennsylvania, Ebtech Industrial designs, manufactures, and installs modular building systems and hardened protective structures. Its products are manufactured and assembled in the USA, with the company specializing in panelized and containerized buildings for industrial, military, defense, and government applications. Unlimited Horizons, Inc. acquired Ebtech in 2007.CONNELLSVILLE, PA
Icon Legacy Custom Modular Homes, LLCIcon Legacy Custom Modular Homes, LLC is a family business founded in 2007 that manufactures custom systems-built modular components for independent builders and developers. It began operations in a renovated 62,000-square-foot facility in Selinsgrove, Pennsylvania, and supplies residential and commercial construction projects across more than 20 states and the District of Columbia.SELINSGROVE, PA