1. Parker Hannifin Corporation 1901 Hastings Dr, Yankton, SD 57078 Coordinate: 42.88903,-97.3473 Phone: (605) 665-4390
2. Sam Heine Well Company 3111 Shipton Rd, Yankton, SD 57078 Coordinate: 42.88306,-97.34256 Phone: (605) 689-2600