Union UNION grew out of a family business set up in 1840 in Willenhall - the heart of the British lock-making industry for over four centuries. The distinguished UNION brand provides an extensive range of architectural products for commercial and contract applications and is recognised worldwide. UNION are able to offer our customers a range of products to meet their needs. With the development of new products UNION is using their experience and innovation to produce quality products for existing and new markets. Find out more » KeyULTRA RangeKeyULTRA Range of cylinders. ExiSAFEA range of surface mounted push bar panic products for use on timber or metal doors.