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There is a growing interest in how firms respond to environmental degradation and societal challenges. Firms respond through their sustainability reports, but assurance of the reports gives confidence to the stakeholders. This study aims to identify the main research development in sustainability assurance which is rising in global studies.

This study uses a bibliometric analysis to assess the global trend in sustainability assurance studies. The methodology is based on descriptive, performance and science mapping. The set is based on 655 documents from the Scopus database, covering the period from 2005 to 2022.

The findings from the study suggest that sustainability studies are relevant, and the researcher's examination of the domain has dramatically increased from 2014 to date. This is due to the rise in the concerns expressed by stakeholders in satisfying themselves about the firm's responsibility to the Sustainable Development Agenda 2030. The findings also show that most research on sustainability assurance is from Spain, the USA, the United Kingdom (UK) and Australia. However, the UK has the most collaboration in terms of co-authorship. It is suggestive that the UK has more links than Spain, which is the most productive country with more publications. This may be attributed to the influx of more international students completing a second and third degree in the UK. The study highlights intellectual foundations and emerging trends and outlines avenues for future studies.

This study is limited to the data obtained from the Scopus database.

This study is the first bibliometric study of the sustainability assurance domain.