SENN CHEMICALS has been providing custom manufacturing services to pharmaceutical, biotechnology, diagnostic and cosmetic companies worldwide since 1963. Founded by Guido Senn in Dielsdorf, near Zurich, Switzerland, Senn Chemicals' focus is on the manufacturing of peptides, peptide fragments, amino acid derivatives and small molecules. Our team possesses deep expertise in both development and production. This breadth of knowledge allows us to design efficient process solutions to meet early stage needs as well as full scale commercial manufacturing demands.

Founder Guido Senn. 1963