The Philippines is a linguistically rich archipelago, holding about 3% of the world’s languages. However, it is also considered a “language hotspot” due to the rapid disappearance of languages in the area. Amongst these languages are Kalagan and Isamal, with their language vitality classified as endangered. With this in mind, this paper looks into the status of Kalagan and Isamal linguistics. It examines the progress made from 1885 to the present day. It documents scholarly articles published by the Summer Institute of Linguistics and other academic journals, focusing on advancements in lexicography, phonology, morphology and syntax, grammar, discourse, and literacy materials within Kalagan and Isamal linguistics. The findings reveal that while significant research has been conducted on Kalagan linguistics, the trend is the opposite for Isamal linguistics. The paper concludes by highlighting the implications of the study for the broader field of Philippine linguistics while providing directions for further research.