Canada

Staff Sergeant Major is a Royal Canadian Mounted Police

Royal Canadian Mounted Police

The Royal Canadian Mounted Police , literally ‘Royal Gendarmerie of Canada’; colloquially known as The Mounties, and internally as ‘The Force’) is the national police force of Canada, and one of the most recognized of its kind in the world. It is unique in the world as a national, federal,...

 (RCMP) rank above Staff Sergeant but junior to Sergeant Major. It is roughly equivalent to a Canadian army Master Warrant Officer

Master Warrant Officer

Master warrant officer is a senior military rank in the Canadian Forces, Singapore Armed Forces and the Israel Defense Forces.-Canadian Forces:...

 or a British army Warrant Officer

Warrant Officer

A warrant officer is an officer in a military organization who is designated an officer by a warrant, as distinguished from a commissioned officer who is designated an officer by a commission, or from non-commissioned officer who is designated an officer by virtue of seniority.The rank was first...

 Class 2.

Britain

Staff Sergeant Major (SSM) was an appointment in the British Army

British Army

The British Army is the land warfare branch of Her Majesty's Armed Forces in the United Kingdom. It came into being with the unification of the Kingdom of England and Scotland into the Kingdom of Great Britain in 1707. The new British Army incorporated Regiments that had already existed in England...

 held by Warrant Officer

Warrant Officer

A warrant officer is an officer in a military organization who is designated an officer by a warrant, as distinguished from a commissioned officer who is designated an officer by a commission, or from non-commissioned officer who is designated an officer by virtue of seniority.The rank was first...

s Class 1 in the Royal Logistic Corps

Royal Logistic Corps

The Royal Logistic Corps provides logistic support functions to the British Army. It is the largest Corps in the Army, comprising around 17% of its strength...

 who are not Conductors

Conductor (British Army)

Conductor is an appointment held by a few selected Warrant Officers Class 1 in the Royal Logistic Corps and is the most senior appointment that can be held by a warrant officer in the British Army...

 or Regimental Sergeant Major

Regimental Sergeant Major

Regimental Sergeant Major is an appointment held by warrant officers class 1 in the British Army, the British Royal Marines and in the armies of many Commonwealth nations, including Australia and New Zealand; and by chief warrant officers in the Canadian Forces...

s.

Staff Sergeant Majors existed in the Army Service Corps

Royal Army Service Corps

The Royal Army Service Corps was a corps of the British Army. It was responsible for land, coastal and lake transport; air despatch; supply of food, water, fuel, and general domestic stores such as clothing, furniture and stationery ; administration of...

 and Ordnance Store Branch

Royal Army Ordnance Corps

The Royal Army Ordnance Corps was a corps of the British Army. It dealt only with the supply and maintenance of weaponry, munitions and other military equipment until 1965, when it took over most other supply functions, as well as the provision of staff clerks, from the Royal Army Service...

 in the 19th century. In 1896, however, Staff Sergeant Majors in the new Army Ordnance Corps

Royal Army Ordnance Corps

The Royal Army Ordnance Corps was a corps of the British Army. It dealt only with the supply and maintenance of weaponry, munitions and other military equipment until 1965, when it took over most other supply functions, as well as the provision of staff clerks, from the Royal Army Service...

 were renamed Sub-Conductors (becoming Staff Sergeant Majors again in 1967). Staff Sergeant Majors remained in the Army Service Corps, later the Royal Army Service Corps, and continued when it became the Royal Corps of Transport

Royal Corps of Transport

The Royal Corps of Transport was a British Army Corps formed in 1965 from the transport elements of the Royal Army Service Corps and the movement control element of the Royal Engineers . The depot was Buller Barracks in Aldershot...

in 1965. The appointment passed to the new Royal Logistic Corps in 1993.

In 1892, Conductors of Supplies in the Army Service Corps were renamed Staff Sergeant Majors 1st Class. Like the Conductors, they wore their Royal Arms rank badge in a wreath. The appointment has now been abolished.