Caterpillar Inc. signed a definitive agreement to acquire Johan Walter Berg AB, including its core brand of Berg Propulsion, a leading manufacturer of mechanically and electrically driven propulsion systems and marine controls for ships. With the acquisition, Caterpillar will transition from selling only engines and generators to providing complete marine propulsion package systems. Headquartered in Öckerö Islands, Sweden, Berg has designed and manufactured heavy-duty marine thrusters and controllable pitch propellers since 1929.