About Us - Bios

D. Bruce Gibbs

President

E-mail Bruce
Phone:  816-478-2000
Direct:  816-875-1880
FAX:  816-795-2492

Bruce Gibbs is a lifetime resident of the Kansas City community, and has been active in the Kansas City telecommunications industry since 1981, and has been affiliated with ServiceMark since 1995.  For nearly three decades, Bruce has primarily focused on the design and installation of business telephone systems and technologies related to the computer and telephone industry.  Bruce oversees strategic planning, sales, and customer service.

Marty Granaman

Vice President of Technical Services

E-mail Marty
Phone:  816-478-2000
Direct:  816-875-1887
FAX:  816-795-2492

Marty Granaman has been active in the Kansas City telecommunications industry since 1986, and has been affiliated with ServiceMark since 1995.  Marty has primarily focused on the programming and installation of business telephone systems and technologies related to the computer and telephone industry.  Marty oversees ServiceMark’s technical services department.

Kenneth Rathke

Vice President of Operations

E-mail Kenneth
Phone:  816-478-2000
Direct:  816-875-1879
FAX:  816-795-2492

Kenneth was born in Austin, Texas, but became a resident of the Kansas City community in 1987.  From 1970 to 1978, he served in the United States Marine Corp.  Kenneth has been the Vice President of Operations for ServiceMark since 1995.

Ryan Maxwell

Sales Engineer

E-mail Ryan
Phone:  816-478-2000
Direct:  816-875-1870
FAX:  816-795-2492

Ryan Maxwell is a lifetime resident of the Kansas City community, and has been active in the Information Technology Industry since 1999.  Ryan has been affiliated with ServiceMark since 2004.  As Sales Engineer, Ryan is actively involved in the sales process which includes conducting research on customized applications for our customers.  Ryan also oversees ServiceMark’s IT technical staff and assists in the deployment of voice and data systems.