ɪts lˈɑːɹdʒɪst sʌbsˈɪdjɚɹi ɪz nɔːɹθˈʌmbɹiən wˈɔːɾɚ lˈɪmɪɾᵻd ˌɛndˌʌbəljˌuːˈɛl, wˌɪtʃ ɪz wˈʌn ʌv tˈɛn kˈʌmpəniz ɪn ˈɪŋɡlənd ænd wˈeɪlz ðæt ɑːɹ ɹˈɛɡjʊlˌeɪɾᵻd wˈɔːɾɚ səplˈaɪ ænd sˈuːɚɹɪdʒ juːtˈɪlᵻɾiz.
Its largest subsidiary is Northumbrian Water Limited (NWL), which is one of ten companies in England and Wales that are regulated water supply and sewerage utilities.