Madison Company, a leading manufacturer of Liquid Level Switches and Liquid Level Sensors, is pleased to announce that it has received Canadian ESA Registration.  Madison’s registration number is 9002272.  We would be happy to answer any questions you may have concerning a specific Madison Company product and ESA registration.  Please contact us by phone at (203) 488 4477 or by email at This e-mail address is being protected from spambots. You need JavaScript enabled to view it .