Mercury is a leading manufacturer of access control systems for commercial and residential buildings. The company was founded in 1992 by a team of security industry experts who saw a need for more advanced and reliable access control systems.

Mercury's access control systems are designed to allow building owners and managers to securely control and monitor access to their buildings. These systems typically include a network of hardware devices, such as card readers and keypads, as well as software that allows users to manage and track access to the building.

One of Mercury's most popular access control systems is its "Total Control" system, which offers a range of features and options for building owners and managers. The system allows users to create and manage multiple access levels and permissions, as well as to monitor and track access to the building in real time.

In addition to its access control systems, Mercury also offers a range of security-related services, including security consulting and training, as well as technical support and maintenance for its access control systems.

Over the years, Mercury has built a reputation for quality and reliability, and its access control systems are used in a wide range of commercial and residential buildings, including office buildings, hotels, hospitals, schools, and apartment buildings. The company has also won numerous industry awards for its products and services.

In recent years, Mercury has continued to innovate and expand its product line, and it now offers a range of new and advanced access control systems, including systems that integrate with other security technologies, such as surveillance cameras and alarm systems.

Despite the growing competition in the access control industry, Mercury remains a leader in the field, with a strong commitment to quality and customer service. The company continues to invest in research and development to ensure that its products and services are at the forefront of the industry.