Welcome to 3G Companies – A New Brand, The Same Trusted Graham Construction Foundation

We are excited to announce our brand transition! Graham Construction Company in Iowa and Graham Group, Inc. in Eastern Nebraska now operate together under our umbrella name: 3G Companies. A slight shift in brand - but a big opportunity for national growth.

We remain steadfast on the foundation of our 3G Cube and tagline, “BUILDING WHAT’S IMPORTANT,” both symbols of our dedication to quality, integrity, and lasting partnerships.

The Graham Mentality

The Graham Way

The Graham Guarantee

Building Relationships Since 1981

Since our inception in 1981, Graham Construction, a 3G Company, has led the construction industry with a unique relationship-driven approach. We know that the foundation of every successful project is a strong, collaborative partnership with our clients. With deep expertise across healthcare, commercial, private education, and industrial sectors, our team remains dedicated to Building Relationships that support our clients in building their future.

Our Vertical Markets

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Healthcare

From hospitals to specialty clinics, our healthcare team builds environments that support patient care, safety, and healing.

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Commercial

We bring our clients’ visions to life with spaces that prioritize functionality, innovation, and the customer experience.

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Industrial

From large-scale facilities to custom structures, we offer industrial construction that meets the highest safety and operational standards.

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Private Education

Our experience in private educational institutions supports future generations in high-quality learning environments.

Experience

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Testimonials

Dr. Dan Ryan

President, Dowling Catholic

Graham far exceeded all of our expectations. They are ultimate professionals, from the executives of the company through the subs they hire. Graham managed every phase of the project like it was their building and their money. The job was never complete for them unless we were completely satisfied with all facets of the work.

Joe Turecek

Director of Construction, Nebraska Methodist Health System

It was one of the best, collaborative teams we’ve had on a project in a long time.

Rhonda Distefano

VP of Construction, Facility Management and Enviornmental Services, Immanuel

I wanted to thank you and the entire Graham team for a fantastic effort on the Deerfield Renovation. We couldn’t be more pleased with the project. The attention to detail and team communication were second to none. The commitments made by Graham were totally fulfilled.

Dave Eppert

Kreg Tool Company

Graham is an excellent partner for us. The team I work with is super organized, quick with responses and keeps everything on schedule and budget. They are also willing to help out in any other way we may need. They have been an excellent resource throughout the project.

Mike O’Brien

Senior Project Manager, Corteva

Graham Construction always puts our best interest ahead of their profits. They have a culture of honesty that starts at the top. I know I can always count on Graham to get the job done right.

Steve Cusher

Hospital Administrator, UnityPoint Marshalltown

I love working with Graham. They have a high level of professionalism. This professionalism trickles down to the subs they use to give an overall great experience with construction. When you have Graham, they don’t just work for you, they are your partner.

Recent Projects

We are proud to showcase our latest projects across each of our four market sectors. Each reflects our dedication to craftsmanship and our ongoing commitment to our clients’ success. Explore our recent work and see how 3G Company continues to lead the way in BUILDING WHAT'S IMPORTANT.