S2 Marine Services, Inc. offers marine surveying and investigations. Our experience covers over 37 years of service in the marine industry. Today S2 Marine Services, Inc. continues to stay on the cutting edge in marine surveying and investigations. Pre Purchase Survey, Basic Survey, Sea Trial, Appraisal Survey, Engine/Generator Survey, Hull Ultra Sound Testing, Infrared Thermal Imaging Services, Damage Survey. Tampa, Florida and Minneapolis, Minnesota, serving Minnesota, Wisconsin, Iowa, North Dakota and South Dakota