It’s a curious fact that EdTech activity conducted in corporate environments is not typically called EdTech. Rather, it goes by the slightly old-fashioned sounding name of eLearning. Corporate eLearning has different dynamics to Schools (K12) and Higher Ed focused EdTech, but there are greater similarities than both sides probably realise.
The following infographic provides a nice summary of the the eLearning market. Produced by eLearning Industry, a publication mainly focused on corporate eLearning/edtech, there are many useful facts and figures to ponder.