TrustTone Communications can help you keep things confidential -- encryption is the name of its game. The company provides software for the secure transmission of confidential documents and e-mail. Its product lineup consists of e-mail and document encryption applications, Stealth Pro and Stealth Lite, along with the company's e-mail encryption appliance and e-mail encryption server. TrustTone's customers come from fields such as financial services, health care, pharmaceuticals, transportation, and manufacturing. The company also offers professional services that include consulting, integration, support, and training.