On the fifth anniversary of Hurricane Katrina, the Open Society Foundations is teaming up with MoveOn and ColorOfChange.org to raise money for social-justice organizations in New Orleans.

The two online advocacy groups have appealed to their members to donate to the Transform New Orleans Fund. The Open Society Foundations will match contributions up to a total of $500,000.

The money raised by the campaign will be divided equally among 18 government-accountability, social-change, and criminal-justice groups in New Orleans, all grantees of the Open Society Foundations.

“The challenge is not just to rebuild New Orleans—but to build a city that is stronger and fairer than the one that was devastated five years ago,” Ann Beeson, executive director of U.S. programs at the Open Society Foundations, said in a written statement.

The Louisiana Budget Project, Puentes New Orleans, Juvenile Justice Project of Louisiana, and the Mary Queen of Vietnam Community Development Corporation are among the nonprofit organizations that will benefit from the campaign.