PSCO Sign Group: A Leader in Signage and Branding for Over 115 Years PSCO Sign Group is the parent company of Philadelphia Sign, ID Associates, and PSCO Kieffer. We are a leading signage and branding solutions provider with over 115 years of experience. We specialize in sign design, fabrication, installation, and maintenance and have a proven track record of success. We are the country's oldest turnkey national sign provider, and we have earned the trust of the world's top brands. We are known for our inspired design engineering, unlimited manufacturing capabilities, and world-class program management. Our organization is a privately held family-owned business that understands the industry and is committed to making the best decisions for our customers. We have over 587,000 square feet of manufacturing facilities and offices in Palmyra, NJ, Pennsauken, NJ, Littleton, MA, Dothan, AL, Palmetto, FL, and Sheboygan, WI. These are complemented by additional sales and service locations nationwide to connect our customers' brands with their audience – globally, regionally, and locally. We are committed to providing our customers with the best possible service. We understand that every project is unique, and we work with each client to develop a custom solution that meets their specific needs.