SimplexGrinnell LP

ADT Security Services, Inc., a unit of Tyco International, is the largest provider of electronic security services to more than six million commercial, government and residential customers throughout North America. ADT's total security solutions include intrusion, fire protection, closed circuit... Read More

For more than 35 years, DSI has developed custom and standard state-of-the-art security and access control solutions for corporate, commercial, government and industrial markets. With highly skilled personnel and a modern 13,000 square-foot facility in Bastrop, Texas, we perform all aspects... Read More

Q-Systems Engineering specializes in the development of embedded electronic controls and systems including a high-end freeze and temperature alarm product; our own product focus is primarily aimed at serving the security and automation markets. Also, for the past 10 years we have expanded our... Read More