olemus
kommunaalteenust (veevarustust, heakorrastust vms)
andev organisatsioon

Merriam-Webster:
: a business organization (such as an electric company) performing a public service and subject to special governmental regulation

ülevaateid
https://en.wikipedia.org/wiki/Public_utility

https://www.elgaronline.com/view/9781785365522/chapter01.xhtml

https://en.wikipedia.org/wiki/List_of_public_utilities