Giles County Of--public Service Authority (psa) 460 E Pembroke Pembroke, VA 24136 Phone : (540) 626-7046 Business Category Government Offices-County Water Supply Government Offices & Public Schools Giles County Public Service Auth 6405 Virginia Ave Pembroke, VA 24136 Phone : (540) 626-7046 Business Category Government Offices-County Water & Sewage Companies-Utility Water Supply Legislative Bodies