Marcus Bonna has been instrumental in the formation of the Brazilian Horn Association, Brazilian national horn workshops (Encontro Brasileiro de Trompistas), and the 2017 IHS Horn Symposium in Natal, Brazil. Over the years, he has donated products from his company to help the IHS raise money for various programs. As a current member of the IHS Advisory Council, he has supported a closer association between Brazilian horn players and the international horn community.
Marcus was born in Belem, Pará, Brazil in 1960 and studied at the Federal University of Pará School of Music. He played in the National Theater Orchestra of Brasilia and joined the University of Brasilia before moving to São Paulo to play in the São Paulo State Symphony for the next 20 years. He also played in chamber music groups such Gramado Wind Quintet and Brazil Brass Group.
Marcus hurt his back in 1990 and developed a lighter instrument case for himself. This case sparked interest from his orchestra colleagues, then visiting horn players. He founded the MB company in 1991 to manufacture instrumental cases – all designed by Marcus. The company now employs 72 people and exports about 700 cases a month to more than 25 countries. In 2011, the company received the Exporta São Paulo Award for exporting 98% of its production and for manufacturing a product made 100% with domestic raw materials and, in 2016, it was awarded the title of Child Friendly Company.
Marcus is a member of the Board of Bragantina Friends of the Arts Association. In 2009, together with his wife, Kathia, and Luis Custódio, he founded the Lyra Bragança Project whose purpose is to offer free music education for youth from the periphery of Bragança Paulista (near São Paulo).
Marcus was given the Punto Award in 2017.