PSL is a research and development laboratory that provides a range of services including consulting, design, fabrication, and calibration services in scientific instrumentation. At our facility south of Madison, which includes state of the art machinery and electronics shops, PSL offers a highly trained staff in electrical engineering, mechanical engineering, and physics to address the unique needs of projects of every scale and complexity. From small to colossal, assistance with concept to design and complete fabrication, or anything in between, PSL offers solutions.