>For Ada it's the US government
Ada is used widely in safety critical software outside the US
Ada is used widely in safety critical software outside the US
GenodeOS project, started to rewrite security critical modules from C++ into Ada/SPARK.
Air Traffic Management and Rail Signalling systems are probably the two biggest fields outside of Defense/Aerospace where Ada has commercial success.
A big barrier to entry was previously the high cost of the toolchain for commercial applications (that's somewhat changed). Which meant it was only economically feasible for large companies in very safety-critical contexts.