Laboratorios LETI, S.L. was set up in 1919 and researches and manufactures vaccines. It started on its long professional trajectory with a complete Vademecum that included most bacterial vaccines known at that time, including the Maltese fever or anti-typhus vaccines, to name but two. Subsequent development of an anti-influenza vaccine with inactivated whole viruses earned us World Health Organisation (WHO) acknowledgement as one of the manufacturers of that vaccine in the world.

During our 80 years of existence, we have devoted a large part of our activities and resources to vaccines, further developing that first Vademecum, into an extensive portfolio that has positioned us as a market leader in Spain.

Some 2.5 million annual doses of our various vaccines are made available to physicians and health authorities in Spain every year. They are all manufactured at our plant, Laboratorios LETI, in Tres Cantos, Madrid.