You searched for: “cryophiles
cryophil, cryophile (s) (noun); cryophils; cryophiles (pl)
In ecology, an organism that grows at low temperatures; psychrophile: Such cryophiles can thrive at extremely cold temperatures varying from -20°C to 20°C (-4°F to 68°F).

The cryophils are found in areas that are continually cold, like the polar regions and in the deep oceans.