A Work of Substance is a multidisciplinary design agency specialising in architecture, landscape, product, and branding. Founded in 2010 by Maxime Dautresme and Florian Michaux, the firm is headquartered in Hong Kong with a newly established office in Dubai.

The firm was shortlisted for  interior designer of the year in Dezeen Awards China 2023 and longlisted in the small retail interior category of Dezeen Awards 2021 with its project Mother Pearl.