The Chamber of Commerce of the Mastics & Shirley
Serving our community since 1951, we champion local businesses and support initiatives that strengthen economic and civic growth.
Annual Events
From Easter and Halloween celebrations to recognition dinners, we bring the community together year-round.
Largest Christmas Parade
We host the Town of Brookhaven’s largest Christmas Parade, with 6,000+ attendees and 80+ marching groups.
Charity & Scholarships
We raise funds for scholarships to graduating seniors pursuing business studies and support civic/nonprofit efforts.
Who We Are
The Chamber of Commerce of the Mastics and Shirley was incorporated in 1951.
Our mission is to enhance economic growth through the promotion and development of business for the betterment of our communities.
We are a community-driven organization dedicated to hosting impactful events, supporting small businesses, and creating opportunities for residents and entrepreneurs alike.
History of the Mastics & Shirley
Rooted in Legacy, Thriving Today
The Mastics were settled in the 1600s, home to William Floyd — the only Long Island signer of the Declaration of Independence.
Shirley emerged post-WWII, transformed by Walter T. Shirley from summer cottages into a vibrant community. What began with just 8,962 people now thrives with over 55,000 residents and 1,300+ businesses.
Rich in history and natural beauty, The Mastics & Shirley remain a stronghold for community, commerce, and growth.
Brookhaven Christmas Parade
December 1st, 12 PM · Brookhaven Main Street
Join us for Long Island’s largest community celebration — with floats, music, and 80+ local groups marching. A cherished tradition for families and businesses alike.
Get Involved in the Events That Shape Our Community
Whether you’re looking to promote your business, connect with neighbors, or give back to the community — our events offer powerful opportunities to engage, grow, and celebrate what makes the Mastics and Shirley special.