Almost every large tech company still uses Java in some way on the backend, and I doubt that will change soon. Google, Twitter, Amazon, Netflix, etc. PHP has a significantly worse reputation, although Facebook is known for a very large PHP footprint. ColdFusion, well... I haven't seen anyone in recent years using that in production.

That same attitude is why I kept pushing people to do one in Fortran. Then this showed up:

https://news.ycombinator.com/item?id=11938405

Now, we need a useful app in Unlambda that people actually paid for. Then, you show them the code and tutorials when they're interested in doing extensions. Observe, record, and share their reactions. (villainous laughter)

http://www.madore.org/~david/programs/unlambda/#intro