Instituto Histórico e Geográfico Brasileiro (IHGB)
The Instituto Histórico e Geográfico Brasileiro operates an AtoM portal for its archival collections, including personal and private archives, cartographic and iconographic material and five presidential archives. The institution presents descriptions in multilevel hierarchies based on Brazil's NOBRADE standard and supports both browsing and search. Item uploads remain in progress, so the public corpus continues to develop. The portal identifies an internal AtoM team and E-NOAR as the technical implementation and support provider. It does not identify a predecessor platform or document a system-to-system transfer, so this case is classified as adoption.