Mesa provides quality control and testing tools for highly regulated industries, including pharmaceuticals, medical devices, and healthcare. Mesa sells products that verify sterilization processes, ensure biological and chemical parameters meet specifications, and calibrate critical instruments for compliance with regulators like the FDA. The company operates through four segments: Sterilization and Disinfection Control (SDC), Biopharmaceutical Development, Calibration Solutions, and Clinical Genomics. SDC, the largest segment, produces biological and chemical indicators used as single-use consumables. Biopharmaceutical Development provides automated instruments for protein analysis and peptide synthesis. Calibration Solutions offers precision measurement tools for gas flow and environmental monitoring, while Clinical Genomics sells the MassARRAY system for genetic analysis. Mesa's business model relies on a razor-and-blades dynamic where hardware installations drive recurring sales of consumables like chips, reagents, and spore strips. This structure creates predictable revenue streams that are relatively insulated from economic cycles. Mesa pursues growth through organic expansion and strategic acquisitions of life sciences businesses, integrating them using its Mesa Way lean-based operational system.