Overland Solutions, also known as OSI, provides a range of auditing and surveying services. It offers loss control solutions and conducts inspection surveys. The firm also maintains a network of branch offices throughout the United States. Overland Solutions divisions include OSI Audits, Safety Resources and Castle Inspection Service. In addition, it operates a subsidiary, Insight Solutions. The firm provides business outsourcing and residential underwriting services. Overland Solutions offers solutions for small businesses and large corporations throughout the U.S. It also conducts telephone and voluntary audits. The firm provides auditing services for third-party underwriting processes and Internet underwriting businesses. Overland Solutions division, Castle Inspection Service, is an independent provider of residential insurance surveys.