Advice for when companies change names?

[dan]

I am using outlook 2003, purely for business contacts.
I have organized my contacts by company as the main way to keep track.


Now I have several important partner companies which have changed their names.
My question is what's the wisdom on handling those changes?


Say, I have 30+ contacts in "ABC Corp", and suddenly ABC changes to "XYZ Inc".
Is there a know way to handle smartly the company rename?

TIA
dan