Letters & Logos Sign Co, Inc. team of sign makers have been providing the local community with signs since 1985. Located in Irvine CA Letters & Logos Sign Co, Inc is a full service sign shop serving all of Orange County, San Diego and Los Angeles. We are fully licensed and insured firm and provide the highest standards in the industry. Letters & Logos Sign Co, Inc Installs and Manufactures signs in many formats such as Vinyl, Neon, LED, Banners, Vehicle/Magnetic, Window Graphics Traffic & Regulatory, 3D, Wood, Pole Signs, Monument and Directional & Maps. Call for a quote today.