Design companies established in 1975

Giorgio Armani S.p.A. (), commonly known as Armani, is an Italian luxury fashion house founded in Milan by Giorgio Armani which designs, manufactures, distributes and retails haute couture, ready-to-wear, leather goods, shoes, accessories, and home interiors. Among others, Armani licenses its name and branding to Luxottica for eyewear and L'Oréal for fragrances and cosmetics. As of 2017, it is considered Italy's second-largest fashion group behind Prada.

Dutch architectural firm

Chaosium Inc. ( ) is a publisher of tabletop role-playing games established by Greg Stafford in 1975. Chaosium's major product lines include RuneQuest, set in Stafford's fictional world of Glorantha; Call of Cthulhu, based on the horror fiction stories of H. P. Lovecraft; Pendragon, based on Thomas Mallory's ''Le Morte d'Arthur; and 7th Sea'', "swashbuckling and sorcery" set in a fantasy 17th-century Europe.