Hanna Instruments
Appliances, Electrical, and Electronics ManufacturingRhode Island, United States501-1000 Employees
Hanna Instruments is the world’s largest privately held manufacturer of analytical and scientific instruments, based in Smithfield, Rhode Island. Since its founding in 1978, it has focused on producing straightforward, affordable devices for laboratory, food, agriculture, aquarium, environmental, and industrial contexts. Its portfolio spans from research‑grade benchtop meters and ion-selective electrodes to single‑ and multiparameter meters for pH, dissolved oxygen, and related measurements. The company serves thousands of customers and major brands and emphasizes consistent customer service across its global footprint in 34 countries. In 2023, Hanna introduced the Advanced Benchtop Meter Series for testing pH, conductivity, and dissolved oxygen. These product developments reflect the company’s ongoing expansion within the analytical and scientific instruments market, serving customers across laboratory, industrial, and environmental sectors.