Interesting discussion...
1) On LinkedIn .. and at many other places now.. one sees Company Logo in Resume's .. I am pretty sure they have not taken " permission " since , generally, no company would like to convey that they were " bad enough " for their present / past workers to be seeking " greener pastures ", howsoever irrational it may seem...
2) " Fair Use " : This is rather loosely worded concept. One relevant feature , however, is as under :
" The fair use or nominative use of a logo is recognized for purposes of description and identification."
In a CV BOTH these purposes are being well served by the Written Word itself . unless the CV is NOT mentioning / describing the Company at all !
3) the same article as linked above talks about " No Endorsement " and "Disclaimer" aspects.
All of above - if interpreted strictly - would make putting a Logo on a CV illegal , first point being , IMHO, the clearest one...
so, while it is being regularly done, in the strictest legal sense it perhaps should not be...