This chapter presents work conducted as part of the AHRC-funded Radical Translations project, based at King’s College London, to produce a public-facing digital resource documenting the circulation of radical ideas in translation between France, Britain and Italy in the period 1789–1815. The database, accessible on the project’s website, is still a work in progress and provides bibliographical metadata onsource texts, translations and their paratext, as well as biographical information about translators and their networks. We constructed the database for two main reasons: on the one hand, to illuminate the shadowy world of radical translators, many of whom remained anonymous or are now forgotten; on the other hand, to shed light on radical translations as a distinctive form of cultural transfer that can be studied in a comparative and transhistorical perspective. To serve the purpose of historical reconstruction and discovery, the database draws on a carefully selected corpus of “radical” texts on a limited scale (3 languages, 5 political chronologies), which we were able to richly annotate and, in some case, disambiguate. To answer more general questions about the practice and function of radical translation, the strategies adopted by translators at different conjunctures and their effectiveness on the political sphere, we have introduced ad-hoc classification schemes adapted from translation studies and the study of cultural transfer. At the core of the project is the notion of “radical” translations, which we define as any translation that sought to extend revolutionary rights, freedoms and ideas of democratic participation into new contexts in order to reach new publics.