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MODUS, formerly Gilmor and Doyle LTD, is a renowned Iowa-based engineering design firm with over 60 years of experience in providing expert mechanical, electrical, and technology engineering services for a wide range of construction projects. With a strong focus on client relationships and sustainable design, MODUS has successfully completed more than 100 LEED awarded projects, showcasing their commitment to delivering high-performing and innovative building solutions. Through a disciplined approach to collaboration and a dedication to exceeding client expectations, MODUS has established itself as a leader in the industry, consistently pushing industry standards and achieving energy efficiencies in each design. With offices in Des Moines, Iowa City, and Waterloo, MODUS continues to drive growth and change in the engineering consulting field, reflecting on six decades of success while maintaining a vision to improve society through safe, sustainable, and innovative building designs.Generated from the website

Established in 1965, Terracon Consultants Inc. is a national firm of consulting engineers/scientists, providing multiple services, including geotechnical, environmental, construction materials and facilities. Based in Olathe, Kan., with more than 100 offices nationwide, the firm provides national resources and local expertise to client firms across the United States. It offers services including site assessment, foundation analysis and design, construction quality control, forensic investigation and more. The firm's projects include the Saluda Dam, American Airlines Center, Rockefeller Center and others. Terracon Consultants Inc. is a member of various industry organizations, including the U.S. Green Building Council and American Society of Civil Engineers, among others. It serves industries including agriculture, energy, government and telecommunications, to name a few.

In 1895, two friends from Coe College started a consulting firm in Cedar Rapids, Iowa, committed to providing outstanding service to clients and the local community. Today, Shive-Hattery is one of the largest architecture and engineering firms in the Midwest with operations in Cedar Rapids, Iowa City and West Des Moines, Iowa; and Bloomington, Des Plaines and Moline, Ill. Shive-Hattery Group is a full-service employee-owned professional design firm that provides complete in-house architectural and engineering consulting services for governmental, industrial, private sector and institutional clientele. The company employs more than 249 employees. It has been ranked by Engineering News Record as one of the 'Top 500 Design firms' in the United States.