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street.life! 2026: Have Some Fun!

Join us for an unforgettable evening at street.life! 2026 presented by Sheehan Phinney — the Chamber Collaborative's signature celebration of business, connection, and pure Seacoast fun.

Catapult's 20th Anniversary Cruise

Whether you’ve been with Catapult since the beginning or are joining the party for the first time, this is one summer celebration you won’t want to miss. Grab your tickets, bring your friends, and get ready to set sail for Catapult’s biggest birthday bash yet!

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Welcome to the Chamber Collaborative

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Meet the Chamber Collaborative

We're the Chamber Collaborative of Greater Portsmouth, your time-tested small business collective. We’re here to help you get connected in the community, to nourish and grow your business, and to help you take advantage of all our area has to offer.

Directory
Jobs
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Events
Hot Deals

Mark Your Calendar

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Featured Events

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Livability Greater Portsmouth

This annual publication highlights the region’s exceptional quality of life, thriving business environment and welcoming community.

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Catapult Seacoast

We're proud supporters of Catapult Seacoast, the region's Young Professionals' Network.

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Getting Started

Getting started with the chamber is easy, let us break it down for you here.

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Making the Most of Membership

Learn how to get the most out of your membership investment!

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Welcome New Members

Become a Member

We’re here to help you get connected in the community, to nourish and grow your business, and to help you take advantage of all our area has to offer.

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Thank you to our major sponsors