Created over 50 years ago in the region of Barcelonam Addendum is specialized in mechanical transmission, especially in the manufacturing of custom-made gears for all types of machinery : spur gears, helical gears, skew gears, double helical gears, bevel gears, spiral bevel gears, hypoid gears, racks and pinions, gear pumps, gearboxes, custom-made transmission systems... We aim excellence in order to offer quality and ISO 9001.2008 certified products : we control the whole production process and each piece systematically go through quality control . Among our customers, we count both small and big companies, as soon as they need a specific high quality piece or as they are willing to execute a more complex project. We manufacture gears and other precision pieces for all kind of industries : ROBOTIC AERONAUTIC GRAPHIC ARTS CONSTRUCTION NUCLEAR CHEMICAL NAVAL RENEWABLE ENERGIES TEXTILE FOOD RAIL Leader in Spain, we are also present in different markets, such as United Kingdom, Germany, Poland, Finland, Norway and Sweden.