You didn't quite get the point I think. C is used for anything in industry, you'll be having a hard time finding a serious embedded programmer using JS for example. Inherently C allows cost effective implementation where JS doesn't stand a chance. But most of this type of use cases will never show up on github. As pointed out by others the dialects for PLCs and LabVIEW would rank pretty high if this was a true representation as well. VHDL and Verilog would also rank readonably high, but these are all use cases which are difficult to monitor. So yeah it is funny working in industry if you see these lists knowing they're heavily skewed towards hobbyists. IEEE did a fairly decent attempt though.