Celebrating A Half Century of NESEA

For 50 years, NESEA has advanced sustainability practices in the built environment by cultivating a cross-disciplinary community where practitioners are encouraged to share, collaborate, and learn. Over the course of that time, NESEA has become an extraordinary community of practitioners that strives to transform our built environment by building relationships, sharing lessons learned, and challenging the status quo. The NESEA of 2025 is a thriving organization, fueled by learners, leaders, and doers who care deeply about our shared vision: a vibrant and resilient built environment that supports climate justice and equity. 

In celebration of this momentus anniversary, we are planning community events around the Northeast and combing through our archives for fun memories to share. As we look back on the first 50 years of learning and connecting, we're also busy planning the next 50. Here's to a bright future, a close community, and a more sustainable and healthy built environment!

Explore NESEA's History

• Read about NESEA's history here...
• We have compiled a gallery of historic NESEA photos here. If you have NESEA photos you would like to share with us, please upload them to dropbox via this link.
• A little slideshow featuring some of the previous logos NESEA has used over the years:

Celebrations and Gatherings

We plan on celebrating our anniversary and community with events all over the Northeast. Stay tuned and we will add events to this page as they come up.

• View photos from 50th Anniversary Celebration at BuildingEnergy Boston 2025.
   

As we celebrate this milestone, we ask you to pledge or donate a gift that reflects your personal commitment to this vision. General donations are vital to our ability to continue to serve our community and work towards our mission. As a 501(c)3 we rely on the generosity of our community to support the member-driven, cutting edge programming and content we offer. Please consider making as generous a gift as you can in support of our community and our mission.