i was curious about the owners of some of these companies. Starting with one of the repeat offenders, Southern Water, their website is a bit cagey but you get this:
https://www.southernwater.co.uk/media/default/pdfs/3968_Ownership_structure.pdf
Pretty clear, no? Nice mix of holding companies in Jersey and elsewhere.
Now, who owns Greensands Holdings? Wikipedia:"Currently the largest shareholders are
JP Morgan Asset Management (40%), UBS Asset Management (22%),
Hermes Infrastructure Funds (21%) and Whitehelm Capital (8%).
[3]" but this is 2018 information so a bit old. Macquarie Asset Management of Australia announced this summer they were acquiring a majority of the company. At least they are in the infrastructure business.