Directional Systems is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Banners & Posters
• Signs Wholesale & Manufacturers

North American Industry Classification System (NAICS) Categories:

• Other Miscellaneous Durable Goods Merchant Wholesalers > Signs, Decals, Displays & Banners > Signs
• All Other Miscellaneous Store Retailers (Except Tobacco Stores) > Banners, Flags, Decals, Posters & Signs

Standard Industry Classification (SIC) Categories:

• Signs & Advertising Specialities
• Durable Goods, Nec > Signs, Decals, Displays & Banners > Signs
• Miscellaneous Retail Stores, Nec > Banners, Flags, Decals, Posters & Signs