Here a list of manufacturers that have in the last 20/30 years been awarded the 'Geneva Seal'(I may be wrong and it is not a complete list) for and only for specific watches that matched the 12 criteria of the 'Côte de Genève'.
Please bear in mind that the 'Geneva Seal' is only awarded to specific models and not to the entire production of a watch company.
Audemars Piguet
Beaume & Mercier
Blancpain
Breguet
Cartier
Cédric Johner
Chopard
Dodane
F. P Journe
Frederique Constant
Gerald Genta
Girard-Perregaux
Jaeger-LeCoultre
Omega
Parmigiani Fleurier
Patek Philippe
Piaget
Roger Dubuis
Vacheron Constatin
Zenith
Yves.
From: Genève.ch (I will translate this later)
Règlement sur le contrôle facultatif des montres de Genève
From: WorldTempus.com (Google_English)
WorldTempus - Twelve essential points of the Punch of Geneva
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