The companies all seem to be fronts for the same individual. Its not unheard of for one individual or a small group to come up with a moneymaking scam that involves exploiting the legal system when they believe that they have constructed enough cutouts (e.g., separate front companies) to protect themselves from liability (and maybe even identification.)
Consider, e.g., the case of Prenda Law. [0]
Since they are apparently doing it in states where they have guaranteed the person does not exist, who is going to argue?
Courts are pretty much the last people who ever would discover this. They entirely rely on their raw power to punish people to prospectively enforce decorum and rule, not investigation or auditing.
That is, they do not discover fraud easily or quickly, but when they discover fraud, it tends to go very much "not well" for the people involved.
That's interesting. This may be a case where you are more secure if your name is common, such as John Smith, since I think the likelihood of finding a state without a John Smith in residence is fairly small.
Or it happens so often that this is the 1 in 1000 that got discovered.
There are states that take it more seriously, like maryland. http://www.marylandinjurylawyerblog.com/2009/01/a_tale_of_tw...
(This is pretty extreme, but maryland does take bar complaints very seriously)