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 ships, displays of the US Lifesaving Service, the Customs Service, the history of the Coast Guard, and more!