Jeff Nading | President

Jeff has been GTC's President for 18 years. He has 32 years of construction industry experience and a Bachelors Degree in Construction Engineering from Iowa State University.

Jeff’s unique blend of project experience from various management positions allows him to be focused and disciplined on each project. A firm believer in the team construction approach, Jeff leads his project teams to exceed clients' expectations.

Brian R. Laartz | Senior Vice President

Brian, who has been a Vice President at GTC for 11 years, has been in the construction industry for 27 years and holds a Bachelor of Science in Civil Engineering from Iowa State University. He served as Division President of the Associated General Contractors for 6 years and now serves on the Board of Directors.

Brian specializes in providing exceptional preconstruction services. He also oversees GTC's Human Resources department.

Jeff Dingwall | Vice President of Operations

Jeff has been GTC's Vice President of Operations for 17 years. He has 39 years of construction industry experience and a Bachelors Degree in Construction Engineering from Iowa State University.

Jeff takes charge of all field related issues of quality and safety. His experience and expertise guarantees even the most difficult projects are completed on time, on budget, and with unsurpassed quality and service.

Andy Fiamengo | Vice President

Andy, who has been with GTC for 6 years, has been in the construction industry for 24 years and holds a Bachelor of Business Administration from the University of San Diego.

Andy takes the lead during preconstruction to ensure the entire project team’s goals are established. He is also directly involved with those same projects during the construction phase to ensure issues are resolved quickly and effectively while keeping the team focused on the goals set during preconstruction.  He is also an integral part of the team that reviews and updates policies and procedures for GTC’s Project Managers and Project Engineers.