Modular Building Systems of PA designs, engineers and manufactures custom volumetric buildings through two Pennsylvania factories. Its brands serve single-family housing, apartments, condominiums, senior living, dormitories, schools, hospitality and light-commercial projects.

The company develops layouts and specifications with independent builders and developers, completes substantial structural, interior and MEP work in the factory, and provides module production, delivery and technical service. Local builders manage site work, setting and final completion.