Swedean & Company Share: Accountants Swedean & Company Visit Website 663 N Derby Lane Suite D N Sioux City, SD 57049 (605) 242-6617 (605) 242-6619 (fax) Facebook Hours: Mon-Fri 8:00 a.m. to 5:00 p.m. About Map About Certified Public Accounting Office Directions Take Exit 2 in North Sioux City. Take a right at the bottom of the exit. Then take a left on North Derby Lane. We are across from Royal Canin. What's Nearby? Distance: 5 10 15 20 25 50 mi.