In concert she has appeared with the Orchestra of the Age of Enlightenment and Sir Simon Rattle (BBC Proms and Festspielhaus Baden-Baden), the Bach Akademie Stuttgart under Helmuth Rilling, at the Edinburgh Festival with Sir Charles Mackerras, the National Symphony Orchestra (Washington) under Helmuth Rilling, the Royal Liverpool Philharmonic and Vassily Petrenko, the Orchestra of La Scala Milan and Chung, the Los Angeles Philharmonic under Pablo Heras-Casado, Le Concert d’Astree under Emanuelle Haim and the Berlin Philharmonic under both William Christie and Sir Simon Rattle. She has appeared in recital throughout Europe and North America.

She has recorded Mahler’s Symphony No. 4 with the Manchester Camerata and Schumann’s Liederkreis (for Hyperion) with Graham Johnson. In October 2006 Kate Royal signed an exclusive contract with EMI Classics for whom first solo recordings were a musical portrait with the Academy of St Martin-in-the-Fields conducted by Edward Gardner followed by 20th century arias (Midsummer Night) with the Orchestra of English National Opera and Edward Gardner. Her solo recital disc with Malcolm Martineau (A Lesson in Love) was issued in February 2011.

In opera she has sung Pamina (Die Zauberflöte) for the Glyndebourne Festival, the Lucerne Festival and the Royal Opera, Countess (Le nozze di Figaro) and Governess (The Turn of the Screw) for Glyndebourne on Tour, Helena (A Midsummer Night’s Dream) for both the Teatro Real, Madrid and the Glyndebourne Festival, Poppea for the English National Opera, Miranda (Ades’ The Tempest) for the Royal Opera, Handel’s L’Allegro for the Paris Opera, Micaela (Carmen) and Donna Elvira (Don Giovanni) for the Glyndebourne Festival and Countess Almaviva for the Aix-en-Provence Festival. She made her Metropolitan Opera debut as Euridice.

Her concert engagements include the Orpheus Chamber Orchestra, both the Berlin Philharmonic and the Orchestra of Bavarian Radio under Rattle, the Scottish Chamber Orchestra and Ticciati, the Boston Symphony and Ades and the Rotterdam Philharmonic and Nezet-Seguin.