Marston's plc operates a business focused on managing pubs and brewing beer. The company owns and operates a portfolio of pubs across the UK and produces a range of beer brands through its breweries. Marston's generates revenue primarily from the sale of food and beverages in its pubs, as well as from distributing its beer products to external customers, including supermarkets and other pub establishments. The company serves a diverse customer base in various regions throughout the UK.