1. Personnel Research Inc
300 S Jefferson Ave Ste 212, Springfield, MO 65806
Coordinate: 37.2078,-93.28933
Phone: (417) 869-0317
2. Vanguard Polygraph Services
2200 E Sunshine St Ste 213, Springfield, MO 65804
Coordinate: 37.18057,-93.25139
Phone: (417) 501-1045
3. A1 Polygraph & Private Invstg
300 S Jefferson Ave, Springfield, MO 65806
Coordinate: 37.2078,-93.28933
Phone: (417) 869-0317