Background: Thailand is a poor but highly literate country of over 60 million people in South East Asia. Much biomedical research is undertaken but dissemination is limited. Aims: To identify relevant Thai bibliographic databases and investigate accessibility, functionality and content particularly in relation to randomised trials. Methods: Systematic search for institutions productive of research, and the databases in their libraries. Use of each accessible database and recording of functionality and content. Results: We found 32 different databases of various sizes, coverage and functionality but many with unique records of randomised trials (total n=781, 27% accessible on PubMed). Conclusions: More collaboration within Thailand would help merge databases and allow greater dissemination of local work. Those undertaking comprehensive searches for biomedical literature cannot afford to ignore the considerable efforts of researchers in Thailand.