The only one that came to my mind was the US Fish and Wildlife Service on the article of Conserving The Future as mentioned in the list of resources.
I believe that this organization not only has an outstanding repore with the public, but has many resources to ensure that EE practices can be taken and taught by nature centers, schools, environmental stations, and to many families. In the resource article that was provided, the read was mainly how the efforts put in now can be echoed in the future generations for conservation practices. If people want to enjoy nature and wildlife for future generations, it is pertinent that we must show them how to protect, conserve, and manage what we hold most dear.
The Department of USFW reaches unlimited number of public and private sectors of the population and has worldly influences on their management, preservation, and conservation. The USFW Service has many different types of resources and materials that can be applied to Urban EE. One commonly known resource that can be applied to elementary school and higher is the Duck Stamp contests. Students are able to enter into a duck stamp drawing/ photo contest and out of hundreds of submissions one is chosen to the next duck stamp in our nation. Its one unique way to get our youth more exposed to the wildlife and nature aspect of our environment.
On the page of the USFWS, there are multiple links you can choose from to learn about, get permits, and see the emergency endangered species list within your area/region. Even though this is most likely a common resource to know about, its really good to understand the importance of knowing just how great your resources can be.