Are there analogs to Simulink or some of MATLAB's toolboxes in Julia? I know of a few shops that use Octave because developer pricing for MATLAB isn't enough when we have an alternative, but there's still a need for a roving license or two because there are a few things lacking in the ecosystem.
For Simulink the closest you'll get is probably OMJulia[1] which is a set of Julia bindings to OpenModelica as opposed to a stand alone library
For simulation there is also a library that reimplements the Modelica language in Julia using macros: