Since then she has collaborated with conductors such as Antonio Pappano, Myung-Whun Chung, Jeffrey Tate, Daniele Gatti, Daniel Harding, Gustavo Dudamel, Riccardo Chailly, Gianandrea Noseda, Fabio Luisi, Juraj Valčuha, John Axelrod, Roberto Abbado, Lorin Maazel, Michel Plasson, Eliahu Inbal, Michele Mariotti, Kent Nagano, Rinaldo Alessandrini; and stage directors like David McVicar, Graham Vick, Pier Luigi Pizzi, Federico Tiezzi, Karole Armitage, Mario Martone, Luca Ronconi, Damiano Michieletto, and Robert Wilson.

Her Verdian roles include Alice in Falstaff (under Claudio Abbado and Lorin Maazel at the Salzburg Festival), Desdemona in Otello, Messa da Requiem, Amelia in Simon Boccanegra, and Violetta in La traviata.

Her repertoire includes operas by Puccini, like La bohème (Mimì) and Turandot (Liù); by Donizetti, of whom she interpreted his entire "Three Tudor Queens Cycle" (Maria Stuarda, Roberto Devereux, and Anna Bolena);[8] and by Rossini, like L'inganno felice, Maometto secondo, Il viaggio a Reims and Mosè in Egitto.

Some her most relevant recordings include two different editions of Don Giovanni (Donna Anna), one of the two under Claudio Abbado (Deutsche Grammophon) and the other under Daniel Harding (Virgin), Rossini's Stabat Mater conducted by Gianluigi Gelmetti (Agorà), Arie Sacre Verdiane under Myung-Whun Chung (Deutsche Grammophon), a double CD titled Arias (Universal-Decca) dedicated to Tosti and Rossini.

[11] In 2016 Remigio was awarded the "Premio Abbiati" by the Associazione Critici Musicali Italiani for her "technique, musicality and stage presence that allow her to deliver undoubtedly valuable performances, supported by a proper knowledge of the style of each score".