Thermo Fisher Scientific is a biotechnology company engaged in service science. It operates in four business segments: Laboratory Products and Biopharma Services, Life Sciences Solutions, Analytical Instruments, and Specialty Diagnostics. The Laboratory Products and Biopharma Services segment offers products and services for life science research and drug discovery and development. The Life Sciences Solutions segment provides reagents, instruments, and consumables used in biological and medical research, discovery and production of new drugs and vaccines as well as diagnosis of infection and disease. The Analytical Instruments segment specializes in instruments, supporting consumables, software, and services for chromatography, mass spectrometry, chemical analysis, and electron microscopy. The Specialty Diagnostics segment delivers test kits, reagents, culture media, instruments, and associated products for clinical diagnostics, microbiology, and transplant diagnostics.