[ProllyInfamous]

To be clear: US employees may attempt to organize at any company, but most "union shops" have chosen to use IBEW labor, as it gives them access to larger commercial/govt/industrial projects (depending upon region/jurisdiction).

Non-union shops will typically spend significant funds dissuading "organizing" among the employees, but there are many rules which technically prevent certain actions.

It is still commonly misunderstood that US employees cannot legally discuss their wage/compensation, when there is Federal Law which specifically allows discussion$.