Power Rangers | Tyrone Power | power metal | Tower of Power | power | Pearson PLC | nuclear power | National Grid plc | Cable & Wireless plc | Mighty Morphin Power Rangers | General Electric Company plc | Cat Power | PLC | British Sea Power | Scottish Power | Power metal | Electric power | American Electric Power | Absolute Power | People Power Revolution | ITM Cup | Nuclear power | Hanson plc | Electric power transmission | Cobham plc | Nintendo Power | Greater Underwater Propulsion Power Program | Florida Power & Light | Tak and the Power of Juju | nuclear power plant |
Other business positions Walker held included: Chairman of Allianz Insurance plc, Vice Chairman of Dresdner Kleinwort and non-executive director of ITM Power plc.