The present invention is directed to a cable routing system with a bracket that joins adjacent cable trays. The bracket includes a main body with upper members, a bottom member and sides. The upper members have a space therebetween to retain transverse wires of adjacent cable trays. The sides include generally C-shaped arms extending from the sides of the main body and along the back of the main body. When the bracket is secured to the adjacent cable trays a longitudinal wire of each cable tray is positioned between the upper members and the sides of the main body.