Since its start in 2007, Porometer has focused exclusively on porometry, designing and manufacturing pore-analysis instruments and software for filtration and separation research and quality control. A brand of Aptco Technologies, the company engineers its systems in-house in Germany and pairs them with application-lab testing and technical guidance; its instruments are used in more than 36 countries.
LENSER Filtration GmbHFounded by Horst Lenser in 1969, LENSER Filtration GmbH makes precision-fit filter elements and related filtration solutions for solid-liquid separation. The Senden, Germany, company invented the membrane filter element in 1973 and now operates worldwide as part of the ANDRITZ Group, with 400 employees serving customers in more than 150 countries. Its work combines a broad product base with hands-on process advice and testing to match filtration equipment closely to each application.MONTOURSVILLE, PA
Microtrac Retsch GmbHMicrotrac Retsch GmbH is the German specialist behind the CAMSIZER line, which has been developed for more than 20 years around dual-camera optical particle analysis. Based at the Verder Scientific headquarters in Haan, the company serves production quality-control teams and research laboratories with instruments for understanding particulate materials. It became Microtrac Retsch GmbH in 2020 following the merger that brought the Microtrac businesses together.MONTGOMERYVILLE, PA
Verder Scientific GmbH & Co. KGVerder Scientific GmbH & Co. KG brings together laboratory-equipment manufacturers that develop and make high-tech systems for sample preparation, quality control and scientific analysis. The division traces its roots to André Verder’s 1959 pump-trading company and remains fully owned and managed by the founding family. Based in Haan, Germany, it has more than 1,300 employees, 11 manufacturing sites and 22 sales offices supporting customers worldwide.42781, DE
Kuntze InstrumentsKuntze 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.LOWER BURRELL, PA