From Zombie at PJMedia:

Note: All entries on this list are real and verified. Below each entry you will find a series of source links documenting the support for OWS. We have striven in almost all cases to reference either first-hand statements by the groups or individuals themselves, hosted on their own Web sites; or videos of the people in question voicing their support for OWSat various Occupations; or news reports from reliable mainstream networks; or articles by publications or organizations sympathetic to the Occupy movement; or indisputable evidence, whatever the source. As a result, it cannot be claimed that these statements of support were made up or distorted by detractors of the Occupy movement.

As each new controversial endorsement has appeared over the last month, OWS supporters have dismissed them one by one as “isolated examples” that don’t reflect any overall trend toward extremism. But when viewed in aggregate like this, it becomes much more difficult to dismiss any individual endorsement as an aberration; instead, an undeniable pattern emerges.

This list is obviously incomplete; we hope to update it over the upcoming days and weeks.

If you think we’ve left out any well-known endorsers for which there is solid evidence, then please post suggestions and evidentiary links in the comments section; but please try to supply links that will stand up to any potential claims of misrepresentation.

The 99%: Official list of Occupy Wall Street’s supporters, sponsors and sympathizers: