Royal Mail plc (Welsh: Post Brenhinol; Scottish Gaelic: a' Phuist Rìoghail) is a postal service company in the United Kingdom, originally established in 1516. The company's subsidiary, Royal Mail Group Limited, operates the brands Royal Mail (letters) and Parcelforce Worldwide (parcels). General Logistics Systems, an international logistics company, is a wholly owned subsidiary of Royal Mail Group.
The company provides mail collection and delivery services throughout the UK. Letters are deposited in a pillar or wall box, taken to a post office, or collected in bulk from businesses. Deliveries are made at least once every day except Sundays and bank holidays at uniform charges for all UK destinations.