About Us
Tisch Environmental is a 100% employee-owned leader in high-volume air sampling and environmental monitoring equipment, headquartered in Cleves, Ohio. Since its founding in 1954 as General Metal Works, the company has expanded from producing the first high-volume air sampler to offering a full range of advanced and custom air monitoring solutions for regulatory and industrial markets.
With a skilled team averaging over 20 years of experience, Tisch Environmental provides high-quality instruments for particulate monitoring, metals sampling, volatiles detection, and EPA compliance methods. The company remains committed to continuous innovation, exceptional customer service, and long-term industry leadership.
In 2023, Tisch Environmental became 100% employee-owned through an Employee Stock Ownership Plan (ESOP), reinforcing its commitment to shared success, stability, and a collaborative future for its employees and customers alike.