ZLS Corporation, founded in 1991 in Austin, Texas, specializes in designing and manufacturing gravity meter instruments. The company offers a range of gravity meter products, including land and marine gravity meters, and provides state-of-the-art technology products for various gravity meter models. ZLS is known for its clean room facilities for assembling precision instruments, stable pier rooms for testing gravity meters, a dynamic test facility for marine meters, a machine shop for manufacturing internal parts, and an electronics lab for electronic system development. The company's core focus is on developing and servicing gravity meter instruments.