E.S. Ritchie & Sons, Inc. was formed in 1850 by Edward Samuel Ritchie. Today still privately held by the Sherman Family in Pembroke, MA, Ritchie Navigation continues to be the Marine Industry leader in the manufacture of recreational and commercial magnetic compasses. Ritchie products are available to Retailers in 57 countries through 142 Distributors. OEM (original equipment manufactured) Ritchie Parts and Service are available from Ritchie Navigation headquarters and 76 Authorized Service Stations world-wide.