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Holder Construction

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Founded in 1960, Holder provides nationwide Construction Management services. Our most valuable resource is our people, who carry forth our traditions, values, and long-standing reputation for performance. Holder’s reputation for delivering the highest level of service and collaborating with clients and design partners parallels our founding principle: "Do the kind of job that makes our clients want us to do their next project."

Binswanger Glass

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America's Trusted Residential and Commercial Glass Company Binswanger Glass provides clients with complete glass and glazier solutions no matter the size and scope of the project. We’re confident in our ability to deliver residential and commercial solutions with an expert team that will bring our experience as the largest and longest-running glass and glazier company in the country to work for you.

Procon Consulting

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Since 2000, Procon has provided construction, project, and program management services in support of the A/E/C industry. With 160+ employees delivering work in 36 states, we provide federal agencies, state and local governments, and private clients with planning, design, construction, and technology solutions to successfully manage and deliver buildings and infrastructure projects.

Clark Construction Group

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Clark Construction Group is one of the largest building and infrastructure companies in the United States. Our portfolio spans every major building market, from public to private, corporate to cultural, education to entertainment, and the infrastructure connecting it all – power, transportation, water, and roadways. Since 1906, we’ve been delighting and delivering value to our clients and project partners, providing diverse opportunities for our team, and strengthening the communities where we live. With offices strategically located across the country, we pride ourselves on being a local builder with national reach.

McCarthy Building

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McCarthy is one of America's premier commercial construction companies. Our reputation for tackling the toughest building challenges starts with our commitment to create great experiences for everyone. Join us! With offices and employees nationwide, we specialize in a wide range of project types including healthcare, education, renewable energy, marine, water/wastewater, commercial, life science, research, hospitality/entertainment and airports. Originally founded as a family business in 1864, today we are proud to be 100 percent employee-owned.

SPEC Building Materials

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Family-owned and operated since 1973, SPEC Building Materials Corporation was founded on the principles of providing the highest quality building materials and competitive pricing for commercial and residential construction. With its roots in Kansas City, Missouri, Mel Stevenson proudly opened the SPEC doors as an equipment and supply business for the roofing industry. Today SPEC has grown to include a network of thirty-six convenient branches, located in strategic markets throughout the United States. Each with a collection of trusted vendors who have been carefully selected by the market demand and the superior products they represent. The associates at each SPEC branch location are also carefully chosen and trained with relevant skill sets and proficiencies in all phases of the industry. They share a responsibility to assist all customers by providing; superior service, quality construction products and materials, competitive pricing, on-time delivery and find suitable personal lending solutions for their projects. The SPEC name is on all our products, but more importantly, the SPEC associates are dedicated to a commitment of hard work, integrity and respect; which is our way of thanking every customer for their trust and their loyalty. The Stevenson family bears responsibility for the future of this business and the well-being of its nearly 600+ trained associates in 12 states. It’s a responsibility to which they've gladly devoted their lives.