HTG Architects Share: Architecture HTG Architects Visit Website 505 East Main Avenue Suite 250-B Bismarck, ND 58501 (701) 751-4558 About Map About HTG provides full consulting services to banks and credit unions focusing on site selection, building assessments, Owner's rep services, remodeling and new construction. What's Nearby? Distance: 5 10 15 20 25 50 mi.