Private company

Change Research

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American polling firm

Change Research is a polling firm based in the San Francisco Bay Area. It was first incorporated as a public benefit corporation in July 2017 by Mike Greenfield, a former data scientist at PayPal and LinkedIn, and Pat Reilly, a former Democratic Party campaign operative.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

Change Research is a polling firm based in the San Francisco Bay Area. It was first incorporated as a public benefit corporation in July 2017 by Mike Greenfield, a former data scientist at PayPal and LinkedIn, and Pat Reilly, a former Democratic Party campaign operative.2