The main objective of the current study is to investigate the Segmental Information Reporting (SIR) of Qatari listed firms covering the period from 2009 to 2018. Design/methodology/approach: the sample comprise all companies listed on Qatar Stock Exchange (QSE) at the end of 2009. A disclosure index was developed to determine the extent of SIR amongst the sample companies. The study used a longitudinal empirical analysis approach; a year-by-year analysis. Findings: The findings revealed a gradual upsurge and awareness of the requirements of IFRS-8 from year to year. Moreover, the reported results suggest that the postimplementation review of IFRS-8 has had a large and positive impact on SIR disclosures since 2014. Practical Implications: This research should provide substantive insights for regulators and standard-setters in identifying best practices and spreading awareness of SIR, which in turn should allow SIR practices to become more standardised, making them easier to monitor and govern. Originality: To the best of the authors' knowledge, this is the first study that provides a longitudinal examination of segmental reporting practices in a developing country, such as Qatar, which permits direct examination of the progress made regarding the implementation and extent of SIR.