Kuntze Instruments is a third-generation, family-owned German company founded in Düsseldorf in 1945, with more than 75 years devoted to water-quality engineering. Its sensors are made, calibrated, and tested in-house at a dedicated facility in Hartha, while Kuntze USA provides local support for North American water-treatment operators. The company is known for bringing German-built measurement expertise to demanding water systems.
EPA Method 334.0 Compliant
Compliance program
Apera Instruments, LLCSince 1991, Apera Instruments has designed and manufactured electrochemical sensors and meters that help users measure water quality, with its specialty extending from pocket testers to laboratory instruments. The company makes key components in-house, particularly its electrodes, and operates an ISO 9001:2015-certified manufacturing facility; its products are used in more than 60 countries. Apera serves everyone from researchers to hobbyist growers, including with instruments tailored to challenging samples such as pure water, viscous liquids, and high-salinity solutions.COLUMBUS, OH
KOBOLD Instruments, IncKOBOLD Instruments began with engineer Klaus J. Kobold’s vision in Germany in 1980 and opened its U.S. company in 1989. Today, its Pittsburgh operation combines German engineering with domestic manufacturing, producing approximately half of the company’s instrumentation in the United States and supporting industrial customers through in-house engineering. The company holds ISO 9001 certification and offers BABA-compliant products for government and infrastructure projects.PITTSBURGH, PA
VEGA Grieshaber KGVEGA Grieshaber KG is a global manufacturer of sensors for level, point level, and pressure measurement, headquartered in Schiltach, Germany, in the Black Forest. Founded in 1959, the company employs over 2,800 people worldwide, with 1,300 at its headquarters, and is part of the Grieshaber Group. VEGA is known for its innovative measurement technology that is easy to install and operate, providing maximum safety and reliability for demanding industrial processes across various industries.MASON, OH
KineticoPROFounded in 1970 by two engineers who pioneered non-electric water treatment, KineticoPRO manufactures water softening, filtration and reverse-osmosis systems for homes, businesses and industrial processes. Its distinctive approach uses the kinetic energy of moving water rather than electricity, while bespoke systems are designed for demanding applications such as manufacturing and process water. KineticoPRO operates through independent dealers and distributors in nearly 100 countries and is part of the fifth-generation Axel Johnson Group.OHIO, OH