Testo SE & Co. KGaA, founded in 1957 in Germany's Black Forest, is a global leader in portable and stationary measurement solutions. With 37 subsidiaries and around 3,900 employees, Testo serves over 650,000 customers worldwide. Its products ensure safety and compliance across industries like HVAC, food, and pharmaceuticals. The company invests heavily in R&D, driving innovation and maintaining an average annual growth of approximately 10% since its inception.