The Company Quartermaster Sergeant (CQMS) in the British Army and Royal Marines is the non-commissioned officer in a Company who is in charge of supplies. He also serves as deputy to the Company Sergeant Major. These days the CQMS holds the rank of Staff Sergeant (Colour Sergeant in the Royal Marines), although once it was a separate rank. In infantry companies, he is always known as a Colour Sergeant.
Squadron Quartermaster Sergeant (SQMS) is the equivalent in the Royal Armoured Corps, Special Air Service, Royal Engineers, Royal Corps of Signals, Army Air Corps and Royal Logistic Corps. Battery Quartermaster Sergeant (BQMS) is the equivalent in the Royal Artillery and Squadron Quartermaster Corporal (SQMC) in the Household Cavalry.