Pile Dynamics, Inc. (PDI) is the most renowned manufacturer of electronic instruments for dynamic testing of foundations in the world. PDI was founded in 1972 by three researchers turned entrepreneurs. It has grown to more than 40 employees while retaining the congenial atmosphere of a small firm. PDI has a team of civil engineers, electronic engineers, technicians and software developers who continue to improve and expand its product line and capabilities. The company has a wide network of sales representatives spread from the Far East to Europe to South America, resulting in the use of PDI products in almost 90 countries throughout the world.

Pile Dynamics, Inc. maintains its corporate headquarters in Cleveland, OH.