Sure - they're the only early union I know anything about (and precious little at that), but the wiki page says that they organized some Starbucks outlets in the aughts, and represent workers at a fast food chain (Burgerville) since then. But 5000-odd members is a shadow of their best years ...

Mildly surprised that the history dates back only to 1905. For some reason I thought that they were involved in the Pullman strikes, but no, that's Debs' ARU. And I thought I recognized the name "Joe Hill" ... I have Pete Seeger's recording on Smithsonian LPs ...