Correction to my above: Raritan and Delaware Bay Railroad.
The reason they have so many different companies is pretty straightforward: these are all shoestring startup operations; if one should fail, it can't take the others down with it. They are betting this will work, are playing with OPM (other people's money, the state grant(s)), as well as their own, but there's a risk.
With the high and rising price of fuel, and coming wage increases, the railroads are going to look better and better for mass transportation of goods. I think they have a good bet.