Signature Research, Inc. (World Headquarters)
P.O. Box 346
56905 Calumet Avenue
Calumet, MI 49913

Phone: (906) 337-3360
Fax: (906) 337-0023
contact@signatureresearchinc.com

Directions: Signature Research is located in Calumet, MI, just off of
US-41. It is ten minutes north of the Houghton County Memorial Airport.