I think all the bots have resistance to it... but I am really not the person to ask.
bots dont have "extra" hold res, yet I got the feeling all henchies got some innate extra res to mezzes, seeing sometimes when bosses toss a hold on my bots, they aint held at all, while the same hold would hold me.
"god, how many devs did hami have to sleep with to get ED?"
Total Cat @Stagefright
All 'Bots' have innate Disorient, Hold, Sleep, Fear and Lethal Resistance.
How much though i couldnt say. Being innate its rather difficult to test 
swap hold for cold and add psionic and the list is complete they DONT have hold resistance
"god, how many devs did hami have to sleep with to get ED?"
Total Cat @Stagefright
I wouldn't know how good their hol res is for my bots, because I have Force Field Generator, insta-Hold protection 
Hey, I have a Ninja MM and just wondering my Joujin and my Oni never get effected by sleep/hold, I know they have confuse/taunt res but nothing about hold.
I'm poison as 2nd set and never use antidote on anyone else but my Genin's.
Just wondering if it's the same with Robotics and their tier 2-3 robots(protbot/assault)?