The workshop of MG Trumpets is located in Wijk bij Duurstede, close to "the green heart" of the Netherlands. We build, repair, customize and modify trumpets, cornets and flugelhorns of all kinds, including historic instruments and mouthpieces. We work for anyone who wants us to care for their instruments. Some of our well known customers are Miroslav Petkov (RCO), Ruud Breuls (WDR bigband/metropoolorkest), Jacco Groenendijk (RCO), Gidon Nunes Vaz (Denmark Radio Bigband), Bert Langenkamp (RCO), Terell Stafford (Jazz Soloist) Frits Damrow (ex RCO), Alvaro Jimenez (KCO bigband, Metropole Orchestra), Hans van Loenen (RFO), Raymond Rook (RFO), Suzan Veneman (KCO bigband), Ad Welleman (Nedpho), Mark Speetjens (Nedpho), Erwin Ter Bogt (Het Balletorkest), and many other players who really need to be able to count on their equipment to be in perfect working order time after time.

In the workshop we work with the three of us: Mark (Martinus) Geelen, Becci Carr and Kylie Hoogervorst. Mark has been working as a trumpet technician for over 15 years and he also works as a professional trumpet player. He plays with renowned ensembles like the Dutch Bach Society (see www.allofbach.com) and as a guest player at well known baroque ensembles in Europe for over 25 years. Due to the high demand for Mark’s instruments and consultation requests, his focus has gradually shifted toward spending more time in the workshop and less time on stage over the last few years. Becci (bec's brassworks) is Mark’s wife and has had an interesting carreer as a designer and seamstress working for Ted Baker and Jack Wills. Then she decided to learn goldsmithing. Becci has magic hands and a good eye for detail. Whenever there is time Becci assists with work on historic instruments. Kylie Hoogervorst has joined us in 2024 and she is learning to work side by side with Mark. Kylie also studies the trumpet at the conservatory of music of Den Haag. Within a few months Kylie has proven herself worthy of all the trust we have had in her from the start. She is assisting in repair, maintanance and instrument building. Her motivation and talent are inspiring and we feel very lucky to have her in our team.

All the product photos on this website are non photoshopped, real life photos. We like to keep things real. If any editing was done then this was only to improve contrast, shadows or brightness of the photos to make them blend in better on the website.

We produce parts manually and by computer controlled equipment. The two little videos below show what kind of work goes into making in house parts.

For small parts we often use the biggest machines. Not what one would expect. Every little step has to be of high quality using decent machinery because part making is a chain of events that need to end up in the best and nicest fitting parts to produce the best and nicest instruments ;).