Slightly surprised I didn’t see any of the big consultancy firms there. PWC is I believe the one who has most Blockchain developers working for them out of the big consultancy firms. I do understand though that you are focused here on a specific month (August 2019), and that I am considering information that talks about current total amount of hired-hands on blockchain development, thus a different timeframe.

Note: To post your images, you can wait to become a Jr. Member (>=30 Activity + >= 1 Merit). All you need to do is get a few more (decent) posts in before the end of the next activity windows (one may do it, but I’d do a few more just incase any are deleted). The next activity window kicks-in on the eleventh of September if this calendar is correct:  https://docs.google.com/spreadsheets/d/12saLhlUoqIdairxzuSPu6EYGrt7FN2lOstO1yDjCEbA/edit#gid=1012758442  (originated here: FAQ: Everything you need to know about forum 'activity, account ranks and merit).