Article · Wikipedia archive · Last revised Jul 17, 2026

Change Research

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. Unlike many other pollsters, Change Research conducts all of its polls online. It claims to offer accurate and inexpensive online polling. Its clients have included Democratic political candidates such as Lauren Underwood, who won a race in Illinois's 14th congressional district in 2018, and Dan Osborn, the independent politician from Nebraska as well as organizations such as the NAACP and AFL–CIO. In 2021, FiveThirtyEight ranked Change Research a "B−" for its historical accuracy and polling methodology and noted that it called 75% of races correctly.

Last revised
Jul 17, 2026
Read time
≈ 1 min
Length
284 w
Citations
9
Source
Wikipedia ↗
Change Research
FormationJuly 2017 (2017-07)
Founders
  • Mike Greenfield
  • Pat Reilly
TypePublic benefit corporation
Location
ServicesPolling
CEO
Mike Greenfield
Chief Growth Officer
Pat Reilly
National Political Director
Kris M. Balderston
Websitewww.changeresearch.com

Change Research is a polling firm based in the San Francisco Bay Area.12 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. Unlike many other pollsters, Change Research conducts all of its polls online.134 It claims to offer accurate and inexpensive online polling. Its clients have included Democratic political candidates such as Lauren Underwood, who won a race in Illinois's 14th congressional district in 2018, and Dan Osborn, the independent politician from Nebraska as well as organizations such as the NAACP and AFL–CIO.567 In 2021, FiveThirtyEight ranked Change Research a "B−" for its historical accuracy and polling methodology and noted that it called 75% of races correctly.8

References

References

  1. "About Us". Change Research. Retrieved 2020-06-17.
  2. Johnson, Martin (2019-12-13). "New poll finds Sanders surging to within 7 points of Biden in South Carolina". The Hill. Retrieved 2020-06-17. ...Change Research, a left-leaning pollster...
  3. "Origin Story & Bio". Change Research. Retrieved 2020-06-17.
  4. Richardson, Seth A. (2018-09-07). "Poll from liberal think tank shows close race between Sherrod Brown and Jim Renacci". Cleveland.com. Retrieved 2020-06-17.
  5. Andy Metzger (2019-08-29). "Kennedy holds 17-point lead over Markey in poll". CommonWealth. Retrieved 2020-06-17.
  6. Bowman, Bridget (2019-04-02). "Pollsters prep for more 'whack-a-mole' with 2016 in rearview". Roll Call. Retrieved 2020-06-17.
  7. Star, Lincoln Journal (2025-04-10). "Daily Minute: Osborn-Ricketts polling; pollen season worsening; tariff impacts on wine". JournalStar.com. Retrieved 2025-04-10.
  8. Silver, Nate (2021-03-25). "Pollster Ratings - Change Research". FiveThirtyEight. Archived from the original on October 5, 2014. Retrieved 2021-07-21.
External links