Mesitas has operated in the medical sector since 1986 and describes itself as one of its leading companies. In 1987 it began growing as the Türkiye distributor of the Riester GmbH brand, and later added A & D Medical. It currently distributes the AND, Riester, AeroChamber and ChoiceMED brands.
Its product range covers nebulizers and respiratory equipment, medical and diagnostic equipment, ophthalmic products and medical components.