Mission Statement
At Sunbelt Modular, we are a wholesale modular building management company with a mission to unite our network of brands under one shared vision: to elevate the modular construction industry through collaboration, innovation, and excellence. By sharing resources, expertise, and best practices, we enhance product value, accelerate project timelines, and deliver unparalleled modular solutions nationwide.
At Sunbelt Modular Inc., we are a wholesale modular building management company with a mission to unite our network of brands under one shared vision: to elevate the modular construction industry through collaboration, innovation, and excellence. By sharing resources, expertise, and best practices, we enhance product value, accelerate project timelines, and deliver unparalleled modular solutions nationwide.
The History Of Sunbelt
FOUNDING & DEVELOPMENT PERIOD
Where it Began
Our journey began in Garland Texas with Amtex Corporation. The goal was to bring fast, cost-effective building solutions through innovative modular technology. At the time, modular construction was still emerging and often misunderstood—many associated the term “modular” only with jobsite trailers, rather than the broader, transformative possibilities it represents today.
EXPANSION THROUGH ACQUISITION
Building the Sunbelt Family
In 2006, Amtex Corp expanded its reach by acquiring Indicom Buildings in Burleson, Texas and officially establishing the original Sunbelt Modular family of companies.
EXPANSION THROUGH ACQUISITION
Building the Sunbelt Family
With the acquisitions of Phoenix Modular and MR Steel in Phoenix, AZ, Sunbelt Modular positioned itself as a significant regional player.
EXPANDING REGIONAL PRESENCE
Southeastern Expansion
In 2020, Sunbelt Modular expanded into the Southeast, welcoming several new businesses into its growing family. ProMod Manufacturing in Ellaville, GA, Southeast Modular in Leesburg, FL, and Specialized Structures in Willacoochee, GA each joined that year, strengthening Sunbelt Modular’s presence and capabilities across the region.
STRENGTHENING A COAST-TO-COAST NETWORK
National Expansion
From 2023 to the present, Sunbelt Modular has continued its rapid growth, adding several well-established businesses to its family of companies. ProBox Manufacturing in Ellaville, GA joined in 2023, followed by C&B Custom Modular in Bristol, IN and Northwest Building Systems in Boise, ID in 2024. The momentum accelerated in 2025 with the addition of Britco Structures in Teague, TX and four Whitley Manufacturing divisions across the country: South Whitley, IN; Leola, PA; Marysville, WA; and Rochester, IN. These acquisitions have strengthened Sunbelt Modular’s footprint nationwide, bringing even greater expertise and capacity to serve clients in diverse industries.
Today, Sunbelt Modular stands as a national leader in modular construction, combining decades of proven experience with an ever-expanding network of trusted companies. As the future of building continues to evolve, Sunbelt Modular is committed to delivering innovative, efficient, and high-quality solutions across the United States. If you’re ready to see how modular construction can transform your next project, contact Sunbelt Modular today to get started.
