Gallup, Inc., is an American research-based, global performance-management consulting company. Founded by George Gallup in 1935, the company became famous for its public opinion polls, which were conducted in the United States and other countries.
Today, Gallup provides research and strategic consulting to major businesses and organizations around the world  focusing on “analytics and advice to help leaders and organizations solve their most pressing problems.”
Some of Gallup’s key practice areas are employee engagement, customer engagement, talent management, and well-being.
Gallup has 30 offices in more than 20 countries. There are about 2,000 employees in the privately held company working in four divisions: Gallup Poll, Gallup Consulting, Gallup University, and Gallup Press.
An opinion poll, sometimes simply referred to as a poll, is a survey of public opinion from a particular sample. Opinion polls are usually designed to represent the opinions of a population by conducting a series of questions and then extrapolating generalities in ratio or within confidence intervals.