Started in 1910 by Mr. Joyce C. Hall, Hallmark Cards sells greeting cards products and art supplies in 43,000 retail outlets in 100 countries. Among its subsidiaries are Crayola, which makes Crayola crayons and markers, and Silly Putty. Subsidiary Crown Media Holdings is a publicly traded company (nasdaq: CRWN) that owns and operates the Hallmark Channel. For the purposes of our Private Company rankings, Forbes excludes Crown Media in both our revenue estimate and employee count for Hallmark Cards. Brands: Ambassador, Crayola, DaySpring, Expressions from Hallmark, Gift Certificate Center, Hallmark Cards, Hallmark Channel, Hallmark Hall of Fame, Hallmark Keepsake Ornaments, Image Arts, InteArt, Mahogany, Party Express from Hallmark, Shoebox, Silly Putty, Sinceramente Hallmark, Sunrise Greetings, The Picture People, Tree of Life, William Arthur