Houlihan & Associates PC Categories Accountants PO Box 1293 Sioux City IA 51102-1293 (712) 255-3450 (712) 255-4997 About Us Accountants - Certified Public Rep/Contact Info Mr Robert Houlihan × Mr Robert Houlihan President Gabrielle Koithan × Gabrielle Koithan CPA Share × Print Email Facebook Twitter LinkedIn Tell a Friend ×