Aldridge Security - Masters Of Security Distribution. Aldridge is the largest trade only security wholesaler in the UK & Ireland and has over 65 years of experience in the industry. With over 16,000 different products in stock including 260 brands available from our London and Manchester branches, the Aldridge portfolio includes Access Control, Ironmongery, Hardware, Key Cutting, Locking Products, Locksmithing Tools & Accessories and Multipoint Locking (UPVC) products.