It was formerly listed on the London Stock Exchange and a constituent of the FTSE 100 Index, but was taken private by a group of investors, Saltaire Water, in 2008.

[4] In 2000 Kelda purchased the United States water supply business Aquarion and subsequently announced the conditional sale of this asset in February 2006.

[4] It was taken private in a £3.04 billion deal in February 2008 by Saltaire Water,[5] a consortium of investment companies including Citigroup and HSBC.

It provides water to 4.5 million people in northern England, mainly within the geographical county of Yorkshire.

It has interests in non-regulated businesses related to its main activity, such as environmental management.