[normalfaults]

Is there a website you can type a company name in and address and find all relevant regulators ?

[tech4all]

Not that I know of. Kind of depends: Is the offending company a utility? A financial entity? Takes a bit of sleuthing.

[justinclift]

Sounds like an opportunity for someone to set up a useful service. :)

[baloki]

Don’t know if it’s the same in the US as the UK, but the regulators details are generally on the bill under the complaints section for each company/utility.