Your contributions of time and resources keep our region’s maritime heritage alive. See below to find out how you can help maintain the CHMM as a living landmark on Newburyport’s thriving downtown waterfront.

Become a Member

The Custom House Maritime Museum is a living landmark on Newburyport’s waterfront. Help support the CHMM by becoming a member.


Volunteers are the lifeblood of our organization. Meet new people who share your interests, have some fun, and help keep our maritime history alive.

Become a Sponsor

Say “thank you” to your organization’s valued employees and clients while supporting one of Newburyport’s most beloved cultural institutions — join our Corporate Sponsorship Program.


See our unique collection of maritime art, model clipper ships, displays of famous shipwrecks, the history of the Coast Guard, and more.