03/21/2013 04:01 pm ET Updated May 21, 2013

Who's backing Obama's nonprofit?

By Dave Levinthal

President Barack Obama's new nonprofit advocacy group wants to know what its donors do professionally and for whom they work.

But don't expect to ever see the information.

Organizing for Action, launched by former Obama campaign officials earlier this year, confirms it will not publicly release donors' employer and occupation data despite collecting it through its online donation form.

"Our voluntary disclosure will be posted on our website with the exact dollar donation, name and city and state of the donor," Organizing for Action spokeswoman Katie Hogan told the Center for Public Integrity.

As a practical matter, a lack of employer and occupation information makes it more difficult for the public to determine the corporate, union or special interest ties donors may have.

It also complicates confirming their identities, particularly when they have common names. A similar issue arose when Obama's inauguration committee released the names of its donors, but no other identifying information.

For contributions by standard mail, Organizing for Action asks donors include their "full name, address, phone number and email address" with their checks, according to the group's website.



Continue this story and read more investigations at The Center for Public Integrity