Since 1936 Advertising Flag Co. has been crafting the highest quality custom hand-sewn flags and banners - Custom Sewn Flags, Sewn Banners, Outdoor Banners, Custom Business Flags, Custom Corporate Flags, Stage Banners, Museum Banner, School Spirit Flags. We take pride in delivering quality American made products. We specialize in custom flags & banners of all shapes in sizes and for indoor or outdoor use. Family owned for over 80 years our flags & banners are made right here in Chicagoland.