Cut Off by 2 Glo Fiber Trucks

Do Glo Fiber drivers have safety training. Evidently not, judging by these two drivers. They both cut me off to make the exit on to I-83 north. There was less than a car length clearance in both cases.
Later, as they need to exit 83, one makes it into the exit lane as he should. The other, farther ahead, has to cut in to get the exit. Unsafe driving practice.