ProActive Diagnostic Services Inc. (PDSI) is a leading provider of advanced diagnostic services for oil and gas industries. Headquartered in Stafford, Texas, PDSI provides its clients with solutions that incorporate the latest technologies and best practices in the industry. Through its comprehensive suite of services, PDSI delivers the highest quality results for improved efficiency and safety in operations across a number of oil and gas fields.PDSI specializes in the development of tools and processes for