Milwaukee, WI
The Royal Neon Electric Signs Inc. was established in 1930 located in Milwaukee, WI. Royal Neon Electric Signs produced outdoor porcelain enamel and neon advertising signs.
They did have a few local and national sign manufacturing competitors that produced similar sign to them from companies like Artkraft located in Milwaukee, WI, Mulholland Sign Company located in Kalamazoo, MI, Walker & Company located in Detroit, MI and Zeiser Bros Sign Company located in St. Louis, MO.
They produced outdoor porcelain and porcelain neon advertising signs for various companies and industries across the country, alone those industries were the brewing industry. They produced signs for breweries like breweries like Schlitz, Gettelman, and Storck just to name a few.
Royal Neon officially dissolved in 1997.
Below are a few examples of their signs: