About Nibbi

Alan Holmberg

Vice President, Preconstruction and Estimating

Alan brings over 30 years of experience in the construction industry to Nibbi Brothers. Alan was hired in 2008 and has experience ranging from preconstruction services, project management, estimating and operations management. Alan is in charge of directing all pre-construction activities and providing constructability reviews throughout the various stages of each project by coordinating with the Project Executives, Chief Estimator, as well as the Project Managers and Superintendents.


  • Bachelor of Science in Construction Engineering – Iowa State University
  • Bachelor of Business Administration in Accounting with Distinction – University of Iowa
  • 37 years experience in the construction industry