Contact Brosz at These Locations
Gary Brennan, PE – President
Billy Doerr, PE – Area Manager
109 S. Main Box 357
Bowman, ND 58623
Phone: 701-523-3340
Fax: 701-523-5243
Zach Gaaskjolen, PE – Area Manager
501 9th Ave. SE
Box 178
Stanley, ND 58784
Phone: 701-628-3340
Fax: 701-628-3341
Aaron Holmbeck, PE – Area Manager
2309 W. 50th Street
Sioux Falls, SD 57109
Phone: 605-336-1676
Fax: 605-336-1853
Jason Hanson, PE – Area Manager
3561 Whitewood Service Rd.
Box 636
Sturgis, SD 57785
Phone: 605-347-2722
Fax: 605-347-2822
Derek McTighe, PE/RLS – Vice President – Area Manager
3030 Airport Rd.
Box 23
Pierre, SD 57501
Phone: 605-224-1123
Fax: 605-224-0659
