The Ethereum Foundation (EF) is a non-profit organization dedicated to supporting Ethereum and related technologies.
The EF is not a company, or even a traditional non-profit. Their role is not to control or lead Ethereum, nor are they the only organization that funds critical development of Ethereum-related technologies. The EF is one part of a much larger ecosystem.
The Ecosystem Support Program exists to provide both financial and non-financial support to projects and entities within the greater Ethereum community, in order to accelerate the growth of the ecosystem. The Ecosystem Support Program is an expansion of the original Ethereum Grants Program which mainly focused on financial support.
Learn more about the Ecosystem Support Program, past grant recipients, and the grant application process at esp.ethereum.foundation. You can also view the Ecosystem Support Program Blog or follow @EF_ESP for their latest news and announcements.