Concert Operetta Theater, identified by EIN 51-0670021, is a nonprofit organization dedicated to the musical performances of operettas from 1860 to 1945. With an operating budget of $2.6K and total revenue of $5.2K for the filing year 2024, the organization relies on multiple funders, none of whom contribute 50% or more of its revenue. Although it does not have a publicly available website, its mission highlights a commitment to preserving and presenting a specific era of musical theater.