| 20/20 Insights (2020insightsllc.com) | Mixed |
| 270toWin (270towin.com) | High |
| ABC News/Washington Post Polling (langerresearch.com) | Very High |
| ABT Associates (abtassociates.com) | High |
| Alaska Survey Research (alaskasurveyresearch.com) | Mostly Factual |
| Amber Integrated (amberintegrated.com) | High |
| American Research Group (americanresearchgroup.com) | Mostly Factual |
| American Viewpoint (amview.com) | Mixed |
| Angus Reid Institute (angusreid.org) | High |
| AP-NORC (apnorc.org) | High |
| AtlasIntel (atlasintel.org) | High |
| Beacon Research/Shaw & Co (beaconresearch.com) | High |
| Benenson Strategy Group (bsgco.com) | Mixed |
| Big Village Polling (big-village.com) | Mostly Factual |
| Braun Research (braunresearch.com) | High |
| Change Research (changeresearch.com) | Mixed |
| Cirulia Associates (ciruli.com) | Mostly Factual |
| Citizen Data (citizendata.com) | Mixed |
| Civiqs (civiqs.com) | High |
| Clarity Campaign Labs (claritycampaigns.com) | Mostly Factual |
| Clout Research (cloutpolitical.com) | Mixed |
| co/efficient (coefficient.org) | Mixed |
| Cygnal Polling (cygn.al) | High |
| Dan Jones Center for Public Service (danjonescenter.com) | High |
| Data for Progress (dataforprogress.org) | High |
| Data Orbital (dataorbital.com) | High |
| Democratic Congressional Campaign Committee (dccc.org) | Mixed |
| DHM Research (dhmresearch.com) | High |
| Digital Research (digitalresearch.com) | High |
| Echelon Insights (echeloninsights.com) | High |
| ECU Center for Survey Research (surveyresearch.ecu.edu) | High |
| Elon University Polling (elon.edu/u/elon-poll/) | High |
| Elway Research (elwayresearch.com) | Mostly Factual |
| EMC Research (emcresearch.com) | Mixed |
| Emerson College Polling (Emersoncollegepolling.com) | High |
| Epic-MRA (ssl2002.webhosting.comcast.net/epic-mra/) | High |
| Fabrizio, Lee Associates (fabriziolee.com) | Mostly Factual |
| Fairleigh Dickinson Polling (fdu.edu/academics/centers-institutes/fdu-poll/) | High |
| FivethirtyEight (fivethirtyeight.com) | High |
| FM3 Research (fm3research.com) | Mixed |
| Franklin & Marshall Opinion Research (fandmpoll.org) | High |
| Frederick Polls (frederickpolls.com) | Mostly Factual |
| Gallup (gallup.com) | Mostly Factual |
| GBAO Strategies (gbaostrategies.com) | Mixed |
| Glengariff Group (glengariff.com) | Mostly Factual |
| Global Strategy Group (globalstrategygroup.com) | Mostly Factual |
| GQR Insights (gqrr.com) | High |
| Harris Poll (theharrispoll.com) | Mostly Factual |
| Hart Research Associates (hartresearch.com) | High |
| HPU Survey Research Center (highpoint.edu/src/hpupoll/) | High |
| Impact Research (impactresearch.com) | Mostly Factual |
| InsiderAdvantage (insideradvantage.com) | Mixed |
| Institute for Public Policy and Social Research (ippsr.msu.edu) | High |
| Ipsos Polling (ipsos.com) | Mostly Factual |
| J.L. Partners (jlpartners.com) | Mostly Factual |
| Lake Research Partners/The Tarrance Group (lakeresearchpartners.com) | High |
| Marist Poll (maristpoll.marist.edu) | High |
| Marquette University Poll (law.marquette.edu/poll/) | Very High |
| Mason-Dixon Polling (mason-dixon.com) | High |
| MassInc Polling Group (massincpolling.com) | High |
| Mitchell Research (mitchellresearch.net) | High |
| Monmouth University Polling Institute (monmouth.edu/polling-institute/) | High |
| Morning Consult (morningconsult.com) | Mostly Factual |
| Morrison Institute for Public Policy (morrisoninstitute.asu.edu) | Mostly Factual |
| Muhlenberg College Polling (muhlenberg.edu/aboutus/polling/) | High |
| Noble Predictive Insights (noblepredictiveinsights.com) | High |
| Pan Atlantic Research (panatlanticresearch.com) | High |
| Pew Research (pewresearch.org) | Very High |
| Public Policy Institute of California (ppic.org) | High |
| Public Policy Polling (publicpolicypolling.com) | High |
| Quinnipiac Poll (poll.qu.edu) | High |
| Rasmussen Reports (rasmussenreports.com) | Mostly Factual |
| RealClearPolling (realclearpolling.com) | High |
| Reasearch & Polling Inc (rpinc.com) | High |
| Redfield & Wilton Strategies (redfieldandwiltonstrategies.com) | Mostly Factual |
| Remington Research Group (remingtonresearchgroup.com) | Mostly Factual |
| Research Co. (researchco.ca) | High |
| RMG Research (rmgresearch.com) | High |
| Roanoke College Institute for Policy and Opinion Research (roanoke.edu/ipor) | High |
| Rutgers-Eagleton Poll (eagletonpoll.rutgers.edu) | High |
| Saint Anselm College Polling (anselm.edu/about/offices-centers-institutes/centers-institutes/center-ethics-society/research/surveys-polls) | High |
| Siena College Research Institute (scri.siena.edu) | High |
| Silver Bulletin (natesilver.net) | High |
| Suffolk Polling (suffolk.edu/academics/research-at-suffolk/political-research-center/) | High |
| SurveyUSA (surveyusa.net) | High |
| Susquehanna Polling and Research (susquehannapolling.com) | High |
| The Watson Center (cnu.edu/wasoncenter/) | High |
| The Winston Group (winstongroup.net) | High |
| TIPP Insights (tippinsights.com) | Mixed |
| Trafalgar Group Polling (trafalgargroup.org) | Mixed |
| YouGov Polling US (today.yougov.com) | Very High |
