Martin Bartels
President and CEO

728 Catoctin Circle NE
Leesburg, Virginia 20176
USA

E-mail: martinbartels1@me.com

Tel: +1 703 774 5470

Dave Bender
Vice President
General Manager

7913 Vicksburg Ave.
Lubbock, Texas  79424
USA

E-mail:
bender.spi@nts-online.net

Tel: +1 806 698 6527
Fax: +1 806 698 8393