Program Information EOS has been serving Japanese owned companies doing business in the U.S. since its formation in 1996. Our firm was established through the transfer of a segment of Ernst & Young???s Japanese business practice. We currently have approximately 150 employees working in our nine locations throughout the U.S. and Japan. As we work primarily with businesses investing and operating in the U.S., we are able to focus our resources to better meet the needs of our clients and aim to provide a more hands-on approach to client service. EOS provides a full range of services including, but not limited to, attestation (audit, review, and compilation), corporate and individual tax, bookkeeping and payroll support.