Yeoman Group plc. The Group's principal activity is the development and marketing of navigational technologies to global consumer markets. It operates through the following divisions: Marine, designs, manufactures and distributes marine electronic instruments and autopilots; Geographic Information Systems, delivers business solutions for geographic information; and mobile navigation, provides services to deliver personalised traffic and travel information to drivers via the mobile phone. Marine accounted for 63% of fiscal 2002 revenues; Geographic Information Systems, 36%; and mobile navigation, 1%.