Interpreti Veneziani offer at least 200 concerts per year in the Venetian church of San Vidal.
The musicians and singers of I Musici Veneziani perform in 18th-century costumes.
Virtuosi di Venezia perform Vivaldi at an ancient church in St. Mark's Square January through May.
Ensemble Antonio Vivaldi perform works by Vivaldi, Verdi, Schubert, Albinoni, Pachelbel and Mozart in Venice's oldest church February through June.
Collegium Ducale perform opera and chamber music on alternating evenings throughout the year, at two locations in central Venice.
Opera at St. Mark's alternates complete opera performances on Tuesday, Thursday and Saturday with Italian opera love duets on Wednesdays and Fridays in central Florence.
The Independent English Theatre is a permanent English-speaking theatre company based in Rome.
The Miracle Players perform comic theatre in English at the Roman Forum.