Defining what you do best as a company, where you add most value, and conversely, areas of lower efficiency can be a productive route to greater profitability. For manufacturers, analytical testing is essential, from R&D through to QC, but it is not a primary output and often not a core competency. This raises the question of how much in-house analysis is optimal. The answer is unique to each organization but the factors in favor of contract testing are universally applicable. In this short whitepaper we look at five of the most compelling.