Directly, yes maybe. Many companies don't have in-house experts (and get shafted by vendors as a result, as they're lacking the competence required to assess the quality of work).

But indirectly, they all have. In Germany, at least, you're required to have electrical appliances inspected by a licensed professional (an electrician or otherwise qualified person) at least every two years - most companies opt for using dedicated external companies, but you can also train someone for that task. On top of that come all the electricians hired by the landlords - the ones dealing with complaints and remodels, or servicing lifts, escalators, HVAC, datacenters, ...

Electricity as a Service, which includes payments for expert maintenance.

Thread is about AWS and merits of in-sourcing, which is not how the world operates.

Anyways.