H. L. Vosz was an Adelaide, South Australia business, for a time Australia's largest supplier of paints and glass, the earliest progenitor of Dulux paints, and became the prosperous glass merchants A. E. Clarkson Ltd.The company was founded in a modest way by a painter, plumber and glazier of more than usual business acumen, who unwittingly became the name behind many of the stained glass windows in South Australian churches and public buildings.