According to our records, this business is located at 4232 E Madison St. in Phoenix (in Maricopa County), Arizona 85034, the location GPS coordinates are: 33.4462706 (latitude), -111.9901099 (longitude). Markham & Decker Inc is categorized under Bolts (SIC code 5072). Known organization owner is Janice Decker. Current estimates show that the unit has a sales volume of $4,872,000 and staff of approximately 8 people. You can contact the company by phone at (602) 225-9989; the following fax number is also provided: (602) 225-0446.