Givewell estimates that they directed or influenced about 161 million dollars in 2018. 64 million came from Good Ventures grants. Good Ventures is the philanthropic foundation founded and funded by Dustin and Cari. It seems like the 161 million directed by Give Well represents a comfortable majority of total ‘EA’ donation.
If you want to count OpenPhil’s donations as EA donations, that majority isn’t so comfortable. In 2018, OpenPhil recommended a bit less than 120 million (excluding Good Venture’s donations to GiveWell charities) of which almost all came from Good Ventures, and they recommended more in both 2017 and 2019. This is a great source on OpenPhil’s funding.
If you want to count OpenPhil’s donations as EA donations, that majority isn’t so comfortable. In 2018, OpenPhil recommended a bit less than 120 million (excluding Good Venture’s donations to GiveWell charities) of which almost all came from Good Ventures, and they recommended more in both 2017 and 2019. This is a great source on OpenPhil’s funding.