An electrical contractor could just as well be an electrician. But no, not always. If there is a single electrician working door to door in your neighborhood, then he remains that. Just another electrician with the most basic of qualifications. Well, not always but just saying. Anyway, this does not necessarily suggest that he is of no use to you at this time. He could be perfectly apt to handle your domestic environment’s electrical infrastructure. But he may be in no position to tackle commercial projects that should best be left to the more qualified commercial electrical contractors in Tulsa OK.
An electrical contractor could also be a company on its own two feet. Ideally, this electrical contracting company would be a licensed and registered concern. All of the electricians on the company’s staff panel if you will would also need to have the requisite licenses that permit them to practice in your town, city, county or state, as the case may be. Of course, as a customer concern (this should apply directly to both domestic and commercial customers), it remains ideal that the presiding electricians hold the highest qualifications possible, of course; as circumstances allow. They would be fully qualified practitioners, in other words.
There is one distinct advantage for customers hiring full-time company employed electricians as opposed to taking a once-off chance with the single electrician. This, by the way, in no way discredits the one-man workshop engineer to offer his prospective clients an exemplary service. Electrical contractors are favored for their prices. They have the capacity to offer the market competitive rates, probably for a much wider range of (specialist) services, say anything from routine or scheduled maintenance inspections to full-fledged solar panel installations and its associated services.