I wonder if there is a service to automate small (or large) donations to multiple organizations on a regular basis similar to an investment service?

Edit: I can only find services marketed towards the nonprofit, not for the donor. A service that aggregated and automated all the nonprofits I want to regularly donate small amounts to would be great. I think it would be important to not require the nonprofits direct involvement in order to allow me to donate as diversely as I want.