Maarten Engeltjes (1984), has been singing as a boy soprano since the age of four. He collaborated as a soprano soloist on several CD recordings including Allegri's Miserere Mei in the Cathedral of Riga.

At the age of sixteen Maarten made his debut as a countertenor in Bach's St. Matthew Passion. Many concerts at home and abroad soon followed. Then in 2007 he graduated cum laude from the Royal Conservatoire in The Hague.

Meanwhile, Engeltjes has been a much sought-after countertenor for years and regularly works with conductors such as Ton Koopman, Jonathan Cohen, Emmanuelle Haïm, Vladimir Jurowski, William Christie, Peter Dijkstra, Jordi Savall, Reinbert de Leeuw, Markus Stenz, Lars Ulrik Mortensen, Laurence Cummings and others. This makes him a regular guest at the world's most prestigious orchestras and venues such as Lincoln Centre New York, Théatre des Champs Elysées Paris, Philharmonie Berlin, Metropolitan Theatre Tokyo, Sydney Festival, Palao de la Musica Barcelona, Barbican Hall London, Salle Bourgié Montréal, Tonhalle Zürich, Konzerthaus Vienna, Kölner Philharmonie and the Concertgebouw Amsterdam.

Future engagements include: Bach cantatas with Frankfurter Sinfonie Orchester conducted by Bejun Mehta, Bach's Weihnachtsoratorium with the Los Angeles Philharmonic and Tonkunstler Orchester Wien, conducted by Ton Koopman, Bach's Johannes Passion with the Orchestre Radio Philharmonique de Paris with Leonardo Garcia Alarcón, Bach's Actus Tragicus with Les Arts Florissants conducted by Paul Agnew and the title role in Handel's Solomon with the Radio Philharmonic Orchestra conducted by Peter Dijkstra. 

In 2017, Engeltjes founded his own baroque orchestra PRJCT Amsterdam . With the ensemble he is taking a new path in which he is conducting in addition to programming and business. A combination that gives him great satisfaction. He has recorded two solo albums with his ensemble for Sony Classical, both of which received much praise from the press. For the coming seasons concerts are planned with the ensemble at home and abroad including the Muziekgebouw and Concertgebouw in Amsterdam, Auditorium Lyon and Salle Gaveau Paris. Besides Maarten, soloists such as Roberta Mameli, Andreas Scholl and Rolando Villazon will be guests.

Engeltjes lives with his wife in Amsterdam and is a proud father of two sons.