Marking Services

Marking Services, Inc. (MSI) is a worldwide leader in mechanical labeling, servicing the identification needs of mechanical contractors. We have been advancing the use of pipe labels, valve tags and equipment signs to enhance the overall operations of commercial, industrial, health care, educational and technology facilities for the last 20 years.

Our identification products are ASME, ANSI, NEC, NFPA, and OSHA compliant and are widely utilized and installed nationally and internationally.

8265 N Faulkner Rd
PO Box 240027
Milwaukee, WI 53224
Tel: 414-973-1331