It is increasingly clear that surfaces play an important role in the chemistry of the indoor environment. Coordinating efforts that focuses on surfaces across the Sloan Foundation Chemistry of the Indoor Environment Program is accomplished by establishing a consortium of PIs that meet regularly to share data, coordinate experiments between laboratories and host visits. The SURFace consortium for Chemistry of the Indoor Environment (SURF-CIE), program in recognition of the importance of surfaces in indoor air chemistry and indoor air quality. SURF-CIE focuses on molecular processes occurring on indoor surfaces and the roles of important variables including relative humidity, molecular nature of the surface and light. SURF-CIE builds on the Sloan Workshop held in Ann Arbor Michigan and the recent perspective published in the journal Chem (Ault, Grassian et al. 2020).