Danaher (formerly known as Diversified Mortgage Investors) is a life sciences and diagnostics company that manages and operates its group companies. It operates in three business segments: Biotechnology, Diagnostics, and Life Sciences. The Biotechnology segment provides technologies, services, and expertise to researchers and biopharmaceutical producers, specializing in the development and commercialization of vaccines, biologic drugs, and cell and gene therapies. The Diagnostics segment offers solutions for healthcare facilities, including automated testing, molecular systems, biopsy markers, blood sampling, etc. The Life Sciences segment provides tools and technologies for research sectors such as chromatography, microscopes, and scientific instruments, as well as data management, intelligence, filtration, separation, and purification services, etc.