Companies Founded by Leon Leinbach
Big Bertha Metals
Strength. Style. Staying power. That’s what Big Bertha Metals delivers through its premium line of metal roofing and siding systems. Built for builders, contractors, and homeowners who want beauty that lasts, Big Bertha offers a full range of profiles, colors, and finishes, each engineered for durability, weather resistance, and curb appeal. What started as a bold idea, that metal could be both rugged and refined, has grown into a trusted name in the building world. Whether you’re constructing a barn, a barndominium, a commercial building, or a metal roof on your home, Big Bertha is there to protect and inspire. It’s not just metal, it’s confidence in every panel, built to guard what matters most.
Learn More
Blue Jay Garage Doors
At Blue Jay Garage Doors, we believe the right garage door can transform a home. That’s why we provide full-service garage door solutions, from new installations and upgrades to maintenance and repairs, serving communities throughout Tennessee and Kentucky. Our mission goes beyond mechanics. Every call, every install, every satisfied customer reflects our dedication to quality, dependability, and genuine care. Whether we’re quieting a noisy door, increasing a home’s security, or replacing an outdated system with a modern upgrade, we’re delivering peace of mind with every project. At Blue Jay, it’s not just about doors, it’s about opening possibilities and taking pride in the homes we help protect.
Learn More
Keystone Construction
With over 2,000 projects completed since 2005, Keystone Post Frames has become a leader in custom post-frame construction, specializing in garages, barndominiums, agricultural buildings, and commercial facilities. Every structure we build combines efficiency, strength, and timeless design, guided by one principle: build it like it’s your own. Keystone’s story is rooted in small-town grit and generational craftsmanship. From initial concept to finished structure, our team brings clarity, communication, and care to every build. We’re not just building buildings, we’re creating spaces where families grow, businesses thrive, and communities gather. That’s the Keystone difference, quality construction with a personal touch.
Learn MoreVentures Built and Backed by Leon
Forge
Forge Machines designs and builds precision metal-folding machinery that combines German engineering with American craftsmanship. We provide high-performance forming equipment, along with reliable service, training, and parts support, all tailored for fabricators who demand accuracy, strength, and longevity from their tools. But Forge is more than a manufacturer; it’s a movement toward better, smarter, more sustainable fabrication. Every machine we build empowers metal shops to stay competitive and confident in a changing industry. At Forge, we believe true craftsmanship is where innovation meets integrity, and every spark of metal tells a story of pride and progress.
Learn More
Lexar Insulation
At Lexar Insulation, we create premium EPS foam board systems designed for below-grade, wall, roof, and under-slab insulation. With our time saving fanfold design our customers save money while still getting an amzing insulation. Our products deliver superior thermal performance, moisture protection, and long-term energy efficiency for homes and commercial buildings nationwide. What sets Lexar apart is the belief that insulation is more than a layer, it’s a legacy of comfort, savings, and sustainability. Every board we produce helps builders construct smarter, greener, longer-lasting structures. With a focus on innovation, stewardship, and reliability, Lexar Insulation gives you the tools to build not just for today, but for generations to come.
Learn more