The term 'BIG NAME IN POLLS' can be summarized by two crossword solutions: Gallup (6 letters) and Roper (5 letters). Gallup is an American research-based, global performance-management consulting company that is well known for its public opinion polls. Roper is a polling organization that was founded in 1933 and is now part of the Ipsos Group, a global market research firm. Both Gallup and Roper are highly respected and widely used in the field of public opinion polling.