_DSC5331 IMG_2275 Dakota_Beverage51 O'Gorman Performing Arts Center Theater Room Bishop2 Track _DSC7716 Ashley31 Pentagon Heritage Court OG_Weight_ROom_41 Holy Spirit OG Hallway Sammons Financial Cafeteria _DSC3949
_DSC5331 IMG_2275 Dakota_Beverage51 O'Gorman Performing Arts Center Theater Room Bishop2 Track _DSC7716 Ashley31 Pentagon Heritage Court OG_Weight_ROom_41 Holy Spirit OG Hallway Sammons Financial Cafeteria _DSC3949

The Country Club of Sioux Falls // Pool

USD Arena //

Dakota Beverage Corporate Office and Warehouse //

O'Gorman Performing Arts Center // O'Gorman Performing Arts Center Theater Room

Bishop Dudley Hospitality House // Bishop Dudley Hospitality House

Sanford Fieldhouse // Sanford Fieldhouse Track

Electric Construction // Reception

Ashley Furniture Store-Fargo, ND // Ashley Furniture Showroom

Sanford Pentagon //

O'Gorman Weight Room //

Holy Spirit Sanctuary Remodel //

O'Gorman High School // OG Hallway

Sammons Financial National Headquarters // Sammons Financial Cafeteria

Plains Commerce Bank Sioux Falls // Plains Commerce Bank Sioux Falls

A Real Design/Build Company


Fiegen Construction Co., a second-generation family-owned and operated business is proud to carry on a heritage started 45+ years ago. The company, founded by Ron Fiegen, started with a foundation of steel and precast concrete erection, heavy rigging and crane rental services. This work continues today as the backbone of their general construction work, but Fiegen Construction Co. quickly evolved into a full-service general contractor and most recently combined architecture and construction under the same roof, a method known as Design/Build.

Design/Build provides Clients with a single committed Team that has full responsibility from conception (design) to completion (build). Having these resources as a single entity provides our Clients with a simpler, more streamlined process that saves both time and money, reduces oversights and overruns, and provides a more informed decision making process.