Faunalytics is an animal advocacy charity and one of ACE’s top charities. They summarize and interpret a lot of academic research, as well as conducting their own research including full data analyses. I volunteered with them a few years ago and would definitely recommend it to anyone looking to learn research, writing, or data analysis skills. They’re also really good about doing transparent and reproducible research by releasing the code they use.
Here’s a recent article conducting a data analysis of 15 years of data on wildlife trade: https://faunalytics.org/wildlife-imports/
Here’s the main data analysis I worked on, analyzing Faunalytics’ proprietary polling data on animal welfare attitudes. We released the data, a writeup of the methodology, and all the code for the analysis on OSF: https://osf.io/2b86k/
GiveDirectly has been using machine learning to identify people in extreme poverty.
I do not know of other examples but I would be interested in knowing the data use/needs of EA organizations