Jerry's pronunciation is correct... Ah e Ah.

Say it at conversation speed and you get the familiar Ah yah.

If you were to use the proper names of the founders of the company, it would still lead to mispronunciation, as the "z" in Aranzabel actually has the "th" Castillian lisp sound and most people would not know better.

Let's call it a day and be happy with Ah e Ah.