Gary Tiedemann

InPhonic sells wireless services and devices through private-labeled Web sites that it creates and manages. The company's technology platform provides outsourced activation services for wireless telecommunications providers.

XM Satellite Radio Holdings Inc. is a satellite radio service company, providing music, entertainment and information programming for reception by vehicle, home and portable radios. The company satellite radios are primarily distributed through automakers ('OEMs'); retail locations and through their website. The company is incorporated on May 16th , 1997 and is headquartered in Washington.