PolitiFact is owned by the nonprofit Polynter Institute for Media Studies. 

“Fact-checking journalism is the heart of PolitiFact. Our core principles are independence, transparency, fairness, thorough reporting and clear writing. The reason we publish is to give citizens the information they need to govern themselves in a democracy.”

FactCheck.org is a project of the Annenberg Public Policy Center of the University of Pennsylvania.

“We are a nonpartisan, nonprofit “consumer advocate” for voters that aims to reduce the level of deception and confusion in U.S. politics. We monitor the factual accuracy of what is said by major U.S. political players in the form of TV ads, debates, speeches, interviews and news releases. Our goal is to apply the best practices of both journalism and scholarship, and to increase public knowledge and understanding.”

Fact checking portal run by award-winning Glenn Kessler.

“Glenn Kessler has been editor and chief writer of The Fact Checker since 2011. In a journalism career spanning nearly four decades, Kessler has covered foreign policy, economic policy, the White House, Congress, politics, airline safety and Wall Street.“

Snopes.com is an independent publication owned by Snopes Media Group.

“When misinformation obscures the truth and readers don’t know what to trust, Snopes’ fact-checking and original, investigative reporting lights the way to evidence-based and contextualized analysis. We always link to and document our sources so readers are empowered to do independent research and make up their own minds.”

“The code of principles of the International Fact-Checking Network at Poynter is a series of commitments organizations abide by to promote excellence in fact-checking. We believe nonpartisan and transparent fact-checking can be a powerful instrument of accountability journalism.”

This link contains a list of the global fact checking organisations who are signatories to the IFCN code of principles, along with links to their independent pages.