Thanks for feedback. Just wanted to note that our report was into how IT vendors make money from open source, not just open source specialists. We were aware that the inclusion of (mostly) proprietary vendors such as these might disproportionately influence the results, however, so we also filtered the findings to include only those vendors that could be considered “open source specialists”. We found that over 40% of these specialists are developing some software out-of-sight of open source project members while more than 50% are using some form of commercial licensing strategy. We were happy therefore that the inclusion of IBM and Oracle et al had not disproportionately impacted the results.