What are the top 10 greeting card companies?

The top 10 greeting card companies often include Hallmark, American Greetings, Papyrus, Carlton Cards, and Blue Mountain Arts. Other notable names are Minted, Paper Source, Rifle Paper Co., Tiny Prints, and Shoebox Greetings. These companies are recognized for their diverse selections of cards for various occasions, innovative designs, and quality craftsmanship. Each brand has its unique style and target audience, catering to different preferences and sentiments.