I think every state has this same issue and it isn't just the pest control folks, there are a ton of unlicensed un-permitted wildlife operators as well.
Bottom line is that unless something flagrant happens and they upset a client, or they have a neighbor look over the fence or some such thing and
see their traps or gear and report them for some type of what they feel is abuse, they are not likely going to be "found."
I've never lived in a state where there were more than 1 game warden for tons and tons of space and lots of potential job duties to each.
So it comes back to you personally and how you feel. I think whatever you can sleep with is the most important. Many folks feel let them hang themselves though this is largely an empty threat.
You could always call each of them and discuss the permit requirements and try to put them on the right track. Check back in a month or so later and if they aren't in the system call them in?
Really everyone on here has probably mentioned this or been involved in a thread about it before, some don't want to burn someone else, some feel they will get caught on their own, and some don't worry about it.
I've talked to guys here in this state on the phone who told me they have been trapping and relocating raccoons and other wildlife all over the area to random locations for the last 20+ years and guess what....?
In my state that is illegal without a permit and only authorized locations are allowed for relocation if you do this type of work.
Best part, he was best buddies with the local franchise who does have a permit and does the bulk of the raccoon work, so this leads me to believe that most folks will never get caught unless they do something that causes damage to a home, person, property, or does something someone views as inhumane and calls them in and then they end up outed for not having a permit or license.
Hope that makes things clear as mud.

Justin