Engineering Acoustics, Inc. (EAI) offers engineering design services, consulting, and hardware development and fabrication of a wide variety of sensors, acoustic sources, instrumentation and systems related to acoustic, geophysical, and oceanographic applications. EAI traces its lineage through staff experience to a prestigious list of institutions and firms, including TRI, Marine Resources, Inc., Actran, Sparton Corporation, NUWC, and the Naval Research Lab. The initial focus of EAI was underwater transducer design, with a heavy emphasis on theoretical acoustics, modeling and R&D. Through the years, EAI has grown to become a major source of specialty transducer and sensor technology supporting a wide range of markets from oceanography to medical and entertainment. The firm has become a technology leader in the development and application of human-centric vibrotactile and haptic systems for defense, entertainment, simulation and training, aviation and healthcare applications.