Another great company (a workshop - studio is a better term ) was founded some 50 years ago by Francis Donzé . It is called Donzé Cadrans and makes some of the great enamel dials in the industry for many companies.
Ulysse Nardin, that was one of the leading clients, was smart enough to acquire them about 10 years ago, as part of the Kering group , but they still make dials to other companies.
Some clients worth mentioning includes Patek Philippe, Hermès, Louis Erard, Czapek, Cartier, Lang & Heine and more.
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Some work example of this studio are in the photos like the Ulysse Nardin Classico Horse made LE of 88 , or the "simple" white enamel.

At work

Finished product