The application process took years and was given only to those deemed of the highest quality to be worth to receive the honour upon personal approval of the monarch.
The warrant was typically advertised on company letter-heads and products by displaying the coat of arms or the heraldic badge of the imperial eagle.
dostawca Dworu" in Polish, "C. a k. dvorní dodavatel" in Czech, or "Fornitore di corte imperiale e reale" in Italian.
Companies in the United Kingdom, Ireland and the United States received the honour including Nathaniel Wheeler for his sewing machines, Charles Lewis Tiffany, William Steinway and Steinway & Sons, Royal Worcester, Pim Brothers & Co. in Dublin, Peek Freans, Liverpool Vienna Bakery Kirkland Brothers, Liebig's Extract of Meat Company, Thomas Hine & Co., Hancocks & Co in London, Hammond & Co., and Elkington & Co. Companies from France were, for example, Christofle & Co., Courvoisier, Kunkelmann & Comp., L.A. Levesque, Moët & Chandon, G.H.
Mumm & Comp., Perrier-Jouët & Comp., Pol Roger & Comp., Rémy Martin, Louis Roederer, Rogée-Fromy, Café Angelina previously Rumpelmayer, Walbaum, Goulden & Co., Veuve Clicquot Ponsardin and Grégory Bajot.