Sterling Services, Inc. Robert DiSciullo, CPA is a reputable accounting and finance institution located at 100 John Robert Thomas Drive in Exton, Pennsylvania, United States. With a focus on providing top-notch financial services, Robert DiSciullo, a certified public accountant, leads the team in delivering expert advice and assistance to individuals and businesses alike. Whether you need help with tax preparation, financial planning, or auditing, Sterling Services, Inc. is dedicated to helping you achieve your financial goals with professionalism and precision.