1. Highmark Inc 14667 139th Pl, Piedmont, SD 57769 Coordinate: 44.22026,-103.27212 Phone: (605) 718-7424
2. Kor Consulting Inc 13321 Edgewood Pl, Piedmont, SD 57769 Coordinate: 44.20717,-103.32022 Phone: (605) 787-6302