Membership Directory

Gingerich Well & Pump Service

Well drilling contractor, pump service provider, also drill bore holes, access holes in to mines, oil & gas drilling geothermal drilling.

Staff

• Gingerich, Klint - President
• Dewolf, Mark - Safety Manager

Glosser System Installers, LLC. (GSI)

GSI is an exterior panel installation company. Specializing in ACM, Fiber Cement, Single Skin Metal Panels & Phenolic Panels.

Staff

• Alkema, Jeff - President
• Glosser, William - Vice President

Goetz Concrete Construction Corp.

Goetz Concrete Construction Corp.’s Mission is to be the leading Concrete Construction Contractor offering consistent top quality service that meets the market demand of the commercial construction industry in the Quad Cities.

Staff

• Sorensen, Bjarne - President

Graham Construction, A 3G Company

Since 1981, Graham Construction has been 'Building What's Important' - long-term relationships. Graham specializes in General Contracting, Construction Management, and Design/Build services for the healthcare, long-term care, private colleges, and commercial construction markets.

Staff

• Hauschilt, Steve - Chief Executive Officer
• Hasek, Mark - Senior Preconstruction Manager

Graves Construction Co., Inc.

Graves Construction Co., Inc., founded in 1920 has primarily built bridges and concrete box culverts mainly in Iowa, South Dakota, Minnesota and Nebraska. Recently branched out into the Commercial Construction. Reputation of excellence and safety in its construction practices throughout the Midwest. Family owned and operated.

Staff

• Graves, Dan - President

Greiner Construction

Staff

• Miltenberger, Josh - Chief Operating Officer

Grimes Asphalt and Paving Corporation

Grimes Asphalt and Paving Corporation was founded in 1972 and is based in Des Moines, Iowa. Grimes Asphalt and Paving is in an optimum position to serve our clients with the latest technology in equipment and high-capacity asphalt plants to service all of Central Iowa and Northeast Nebraska. Our experienced employees will ensure a safe, efficient, and quality project. Our Des Moines, Iowa, asphalt paving company offers expertise in producing and paving hot mix asphalt. Making us your one-stop in paving construction.

Staff

• Yonker, Matt - General Manager
• Yonker, Mike - General Manager

Grosse Steel Co., Inc.

Staff

• Grosse, Robert - Founder & President
• Grosse, Shane - Owner & Vice President

GTG Construction

At GTG Construction & Architects, we specialize in providing comprehensive design and construction solutions that seamlessly integrate architectural creativity with construction expertise. As a trusted partner in creating spaces that inspire and perform, we take pride in delivering projects that balance aesthetic appeal, functionality, and efficiency. Our collaborative approach ensures that every project reflects our clients' unique vision while meeting the highest standards of quality. From initial concept to final construction, we are committed to transforming ideas into exceptional spaces tailored to the needs of each client.

Staff

• Reynolds, Jessica - Owner

Hanna Plumbing & Heating, Inc.

Staff

• Hanna, Tim - Manager/Owner