Guest appearances have taken him to Asia, North and South America and many countries of Europe. He has taught and been visiting professor at various German universities and institutions, notably the Herbert von Karajan Foundation of the Berlin Philharmonic Orchestra, the North West German Music Academy of Detmold and the Franz Liszt College of Music in Weimar. He has worked with Europe's leading youth orchestras and since 2001 has been visiting professor at the Hanns Eisler College of Music in Berlin and honorary professor at the College of Music in Shanghai. Since 2002, Thomas Clamor has been steadily working with children and young people from the socio-cultural State Foundation of Venezuela, unique of its kind in the world, under the direction of José Antonio Abreu. The foundation of the first Latin American brass academy in Venezuela in 2003 was followed by the constitution under his direction of the Venezuelan Brass Ensemble.

Thomas Clamor studied trumpet and percussion at the North West German Music Academy of Detmold. After being engaged by the Opera in Frankfurt am Main he switched in 1986 (aged just 23, he was its youngest member) to the Berlin Philharmonic under the artistic direction of Herbert von Karajan. As a soloist and chamber musician, he has played in many leading ensembles. Releases on major record labels and TV and radio recordings by leading broadcasting stations all document this activity. He has applied himself with great relish to educational and conducting work, and chamber music is a particular delight.