As a family with many members, we have each other’s backs.

Spread from coast to coast, we’re all about expanding our expertise, supporting each other through our diverse offerings and capabilities. Because when one of us succeeds, we all succeed — and we can only be at our best when we work together. General contractor, mechanical contractor, service, and building automation … that’s one powerful construction family.

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Six brands.

Made up of six brands with offices across the country, MMC Corp is a 100 percent employee-owned company dedicated to the success of our partners and teammates.

Eleven offices.

Located in 11 offices from California to New Jersey, our expertise spans many regions and industries, equipping us to serve clients throughout the entire construction process.

One family.

Though spread out at offices and project sites nationwide, one thing remains — we are a family, a unified team that is better as a whole than individually. At the core, we are builders, we are teammates — and we are all in it together.


MW Builders

MW Builders is a national general contractor with expertise that spans today’s fastest-growing construction sectors, including government, senior living, hospitality, multi-family, student housing, light industrial, and education. The "MW" stands for the company's long-standing history founded on Midwestern values; while "Builders" reflects the essence of being craftsmen: people who build high-quality buildings, strong partnerships, and the best teams. MW Builders has current locations in Temple and Midland, Texas and Kansas City.

MMC Contractors

MMC Contractors is a national mechanical contractor specializing in building large, complex projects. With a comprehensive offering of preconstruction and construction services, MMC Contractors works in diverse markets including healthcare, energy, mission critical, pharmaceutical, industrial, and commercial. MMC Contractors is currently ranked nationally as a top mechanical contractor and has locations in Las Vegas, Nevada; Omaha, Nebraska; Kansas City, Missouri; and Somerset, NJ.

Countywide Mechanical Systems

Based in San Diego, Countywide Mechanical Systems is dedicated to providing the highest level of service to its clients. The company specializes in construction, preconstruction, and service of commercial HVACR and plumbing projects for their valued clients in healthcare, high-rise, government, and more.

Stroh Corporation

Based in Des Moines, Iowa, Stroh Corporation is a service and construction company that provides mechanical, electrical, plumbing, and energy services to its clients throughout Iowa. While service to improve efficiency and operations for commercial clients is its core business, Stroh also offers full-service capabilities in design-build construction, retro-commissioning, energy solutions, and customized preventative maintenance programs.

Building Control Services

Based in Reno, Nevada, Building Control Services (BCS) specializes in the installation, retrofit, start-up, maintenance, service, and analysis of commercial and industrial HVAC mechanical and control systems. Drawing on extensive experience in mechanical and building automation systems, BCS excels at optimizing complete system functionality and energy efficiency. Their wide range of clients includes municipalities, resorts, data centers, education, and more.