Who were the survivors of the ice age?

What are you asking about them?

If you wanted to know what they were called, there were three species of humans known to have lived during the last Ice Age. The earliest was Homo heidelbergensis, which evolved into the other two species during the ice age. These were Homo neanderthalis (which died out 30,000 years ago), and Homo sapiens (modern humans).

H. neanderthalis and H. heidelbergensis both died out before the end of the Ice Age. H. sapiens are the only human species known to have survived beyond the end of the last Ice Age.