Glaceau brand is owned by Coca Cola in United Kingdom.

Glaceau Smartwater (stylized smartwater) is a brand of bottled water owned by Energy Brands, a subsidiary of The Coca-Cola Company. Introduced in 1996 in the United States, by 2016 it was one of the top five brands of bottled water in that country with sales worth nearly $830 million in 2017.

Company Web Site : https://www.coca-cola.co.uk/brands/glaceau-smartwater