For the last year or so Ive bought from American Rodent Supply.
Im not really fully satisfied with the product I recieve.
I usually get ..
50 med rats
100 weanling rats
100 adult mice
25 crawler mice

The product I recieve is very frost bitten, the eyes and limbs are white and dry. And I will usually lose a few rodents per bag because the stomachs come open, its not pleasant and I have to throw them away.
Seems like this company has the best rates, but I dont know how long these rodents have been frozen and it seems like I could find a better option.

I would be interested to know what companies you guys buy from and are happy with.