Welcome to the North Brookhaven Chamber of Commerce. Our Mission is to bring business and community together. You have the choice to submit the application online with payment. Follow the Charge my credit or debit card button, to use Pay-Pal for payment, or use the print application button at the bottom of the page, then mail a check to for appropriate dues package to with the printed application to: North Brookhaven Chamber of Commerce 5507-10 Nesconset Highway #41 Mt. Sinai, New York 11766. Please fill in the Business description for inclusion on our website. Fill in the login information to access the Member information section where you will be able to update your listing when approved as well as the members only section of the Chamber website. Please be advised we accept Pay-Pal only as a credit card option at check out.