Historical differences between long-standing bell foundries?

[Matthew]

I have long wondered about the history some of the long-standing bell foundries that still exist today.  Marinelli since 1040, John Taylor since the mid 1500's, Whitechapel since 1570, Petit & Fritsen from 1660 and Eijsbouts from 1872.  There are probably more.

I wonder how they compare in reputation, size, market focus, quality of product, quality of service, pricing, how they survived the world wars, etc.  I would appreciate anyone's insight on these venerable companies.  Thanks.