1. Lonestar Calibration 6046 Fm 2920 Rd Suite 126, Spring, TX 77379 Coordinate: 30.07416,-95.51659 Phone: (832) 754-8654
2. Houston Scale Co 936 Rayford Rd, Spring, TX 77386 Coordinate: 30.12579,-95.42691 Phone: (281) 419-1661