Below is a list of charities focused on helping hurricane victims in Puerto Rico:
Americares is providing medicine and medical supplies, and responding to recovery needs as they arise.
Convoy of Hope, another faith-based organization, provides food, water, and emergency supplies.
GlobalGiving is a global crowdfunding network (with a four-star rating from Charity Navigator). Their fund for hurricane recovery in the Caribbean encompasses emergency supplies and long-term recovery and rebuilding, channeling donations to vetted local organizations.
International Medical Corps provides emergency relief and longer-term training programs to help communities recover from disaster.
The Sato Project is rescuing displaced and homeless dogs and transporting them to shelters outside of Puerto Rico.