Departing the NEAC at the conclusion of the 2009–10 season were associate members the University of Dallas and SUNY Oneonta.

In the 2013–14 season, the NEAC added Cedar Crest College as an associate member for women's swimming.

On August 30, 2017, Bryn Athyn and Wilson announced that they would leave the NEAC for the Colonial States Athletic Conference in the 2018–19 school year.

On March 1, 2022, SUNY Morrisville announced that it would leave the United East to join the North Atlantic Conference starting in the 2023–24 academic year.

[9][10] On August 15, 2022, Wells announced that it would leave the United East to join the Allegheny Mountain Collegiate Conference starting in the 2023–24 academic year.

This merger also provided member institutions an opportunity to decrease the number of associate memberships necessary to support the current sport offerings on each respective campus.

When the merger was finalized sports with a large number of members would compete in north and south divisions.

On January 4, 2024, the United East accepted Penn State Brandywine's application to become a full member of the conference beginning in 2024–25.

The remaining sports play conference schedules with no divisions or have a conference-wide championship at the end of the season.