Becton Dickinson is the world's largest manufacturer and distributor of medical surgical products, such as needles, syringes, and sharps-disposal units. The company also manufactures prefilled devices, diagnostic instruments, and reagents, as well as flow cytometry and cell-imaging systems. BD Medical is nearly half of the total business, while BD Life Sciences (26% of 2024 revenue) and BD Interventional (25%) account for the remainder. International revenue accounts for 43% of the company's business.