Dennis Wilgenhof made his debut at Concertgebouw Amsterdam as Derde Walvisvaarder in  Peter-Jan Wagemans' Legende, (ZaterdagMatinée, Jaap van Zweden, conductor),  a concert which was broadcasted live in The Netherlands by the NPS, radio network.

Dennis Wilgenhof has also performed Luther and Crespel  in Hoffmann's Erzählungen, Calchas in La Belle Hélène, Pangloss in Candide, and sang Rodolfo in La Sonnambula.

More recently he has performed Leone in Atilla (Concertgebouw Amsterdam, J. van Zweden, conductor), Vierter Brabantischer Edler in  Lohengrin (NPS, Concertgebouw and Salle Pleyel, Paris), Caliban in Der Sturm by F.Martin (Concertgebouw Amsterdam), Schubert's Miss Nr. 5 (Vrijdag van Vredenburg), Röntgen's Lieder (Orkest van het Oosten, including a CD registration), Qin Shi Huangdi in Hôtel de Pékin (Dutch National Touring Company), Zweiter Geharnischter in Die Zauberflöte (Frankfurt, S. Weigle, conductor), Hans Schwarz in Die Meistersinger (with ZaterdagMatinee, Concertgebouw).

Upcoming engagements include Fafner in Das Rheingold, Osmin in Die Entführung, Hunding in Die Walküre, Commendatore in Don Giovanni, DreieinigkeitsMoses in Mahagonny (all in Cologne), Zamar in Wagemans' Legende (De Nederlandse Opera, Amsterdam), König in Schumann's Des Sängers Fluch (Residentie Orkest, The Hague, The Netherlands), among others.