Richard D. Rockwell

Professional Security Technologies LLC provides security solutions. It installs and maintains security systems & provides hosting and monitoring services. The company also offers access control and video systems. The firm was founded in 1967 and is headquartered in Nutley, NJ.

TransNational Security Group LLC provides security services. Its services include uniformed security guards, executive protection, background investigations and security surveys, along with fire and security systems installation, monitoring and maintenance. The company was founded by Richard Rockwell in 1997 and is headquartered in St. Louis, MO.

Martin & Co. engages in rental, leasing and property management business. It issues various certifications, standards, and guidelines for the security profession. The company was founded in 1955 and is headquartered in Alexandria, VA.

Henry Bros. Electronics, Inc. provides electronic security systems and services. The company was founded in 1989 and is headquartered in San Diego, CA.

Unlimited Technology Associates provides system security services. The private company is based in Portland, ME.

National Association of Security Cos. operates as a contract security association. It provides information to members, associations, security industry leaders and the media on a broad range of public policy and private security industry issues. The company is headquartered in Washington, DC.

Metropolitan Maintenance Co. operates as a full service janitorial company. Its services include day porter, carpet cleaning, pressure washing, window washing, flood cleaning and grounds maintenance. The company was founded in 1969 and is headquartered in Baltimore, MD.