Any research, testing or reports that come from companies has a specific purpose or agenda, often for financial or economic reasons. University or college-based research on the other hand is supposed to be unbiased, although much research is supported by commercial companies, especially in the pharmaceutical industry. This support affects what is researched in universities, but shouldn’t affect how it’s done– for example, by influencing the results. Bear this is mind as a possible criticism when reviewing this kind of work.