Commercial data is data collected by or processed by commercial organizations.
While commercial data can be easy to access, different data sets can vary in terms of the quality and integrity of data, and careful attention should be paid to the data production methodology, as well as the process of ground-proofing the data.
Proprietary data may also have restrictive licenses that limit the scope of how the data can be used or published.
An example of proprietary data would be a database of corporate ownership used to track the flow of revenues. High-quality satellite imagery and other digital geospatial shapefile data can also be licensed from commercial vendor.