The recent host-rotation for ECO-5 has been as follows (when possible, a link to the website or program is included for that year's ECO-5 conference):
2024 UMass
2023 UConn
2022 MIT
2021 On Zoom!
2020 Harvard
2019 UMD
2018 UMass
2017 UConn
2016 MIT
2015 Harvard
2014 UMD
2013 UConn