The Evvas Laboratory started its activities in April 1997 at Coronel Jonathas Square in Monte Azul. It went through several modifications until in 2005, Rua Governador Valadares was installed. There was an intense modernization of equipment, contracting of the National Quality Control Program (PNCQ) and investment in professional qualification, thus ensuring quality and agility in laboratory tests. The Evvas group, concerned with maintaining its quality standard with greater comfort and convenience for customers and employees, sought to expand its physical structure by building what is now its current matrix, with a modern infrastructure that meets all the requirements established by the National Agency of Health Surveillance (ANVISA).