pollsters

/P OW1 L S T ER0 Z/
noun
  1. 1

    A professional who conducts or analyzes opinion polls.

    โ€œTrump didn't like the results of the polls, so he fired the pollsters.โ€

Source: https://en.wiktionary.org/wiki/pollster, https://en.wiktionary.org/wiki/pollsters