Contact Us
Corporate Headquarters
1055 Cassens Industrial Ct.
St. Louis, Missouri 63026
PH 636-680-2100 / FX 636-680-2202 / Map
Mid-Missouri Office
10501 South Hardwick Lane
Columbia, Missouri 65201
PH 573-442-6100 / FX 573-442-6104 / Map
Email IFS Employees Directly: first initial, last name @intfs.com
For example: jdoe[@]intfs.com
IFS Service Area
IFS Corporate Headquarters: St. Louis, Missouri
