Plaque sign Do you want to commemorate a special event in your business’ history or pay tribute to someone who has worked for you for a long time? One of the best ways to do it is by hanging plaque signs in your place of work. Office plaques can help show your employees that you care. Whether you decide to use a metal plaque signs, commercial plaque signs or some of the other plaque signs that are available at Greenfield Signs & Lighting, plaque signs have proven to be an effective method of honoring a special person, event or anniversary. We offer plaque signs for sale in a variety of different styles, and as long as you maintain them properly, they should last a lifetime. Shop our inventory online or call to learn more.