Most manuscripts preserved in institutional collections have been catalogued at least to a certain degree.
An (incomplete but constantly growing) repertory of collections and catalogues is the 'Inventory of Libraries and Catalogues of Ethiopian Manuscripts' by Anaïs Wion, Claire Bosc-Tiessé and Marie-Laure Derat (last updated 6 January 2014).
A list of printed catalogues in downloadable bibliographic format and with links to online resources wherever accessible is available from our project Zotero bibliography.
Herewith a partial printable list generated from our database:*************
Examples of electronic catalogues of Ethiopic manuscripts are the partial (work in progress) catalogue of the Hill Museum and Manuscript Library and the Digital Oriental Manuscript Library created by the Ethio-SPaRe project (full search available; manuscript images on request only).