From Wikipedia:
"Prior to July 31, 1987, the FCC issued GMRS licenses to non-individuals (corporations, partnerships, government entities, etc). These licensees are grandfathered in and may renew their existing licenses, but no new GMRS licenses are being issued to non-individuals, nor may existing non-individual licensees make major modifications to their licenses."
I'm guessing these are old licenses that some bureaucrat is continuing to renew.