His Majesty's Naval Base (HMNB) Portsmouth is the oldest of three Royal Navy main operating bases in the United Kingdom and is home to almost two-thirds of the RN's surface fleet.

Employing around 15,000 personnel, both service and civilian, the base is not only a major Royal Navy Headquarters and operating hub but also has significant commercial activity to directly support the RN's ships and their operations.

In addition to the naval base itself, the area is also home to a major heritage area: Portsmouth Historic Dockyard, which contains several historic buildings and ships, most notably HMS Victory, HMS Warrior and The Mary Rose Museum; the National Museum of the Royal Navy is also located here.

The historic dockyard area is open to members of the public, with security measures in place to prevent unauthorised access to the restricted areas of the base.

The Naval Base Enterprise (MoD/KBS) propose to replace the existing base-wide automated access control system(s) (AACS) to a single manufacturer solution, including additional functionality, to provide a more secure and effective overall security strategy and operational effect, to enable the Security organisation to deliver against its strategic objective for access control.

The project is proposed to be delivered across three phases and potentially, subject to SME input, multiple years.

The AACS solution shall be a Gallagher Security system, installed by a Gallagher high-security approved partner/installer.

The Installer shall hold List X status and Personnel must be a minimum of SC cleared with a number of DV cleared Personnel.

The installer shall have an accredited IT system to enable the receipt of MOD II up to and including SECRET.

Those that meet the criteria of this initial phase will be invited to participate in a final competition.

Deadlines for expressions of interest are the 18th August.

Any expressions received after this date will not be accepted.