Welcome to the
Mount Sinai – Miller Place Chamber of Commerce

Our primary goal is to strengthen our local economy by connecting residents to locally owned businesses in order to unite the community through events, networking and interests of local community.

“Strengthening Local Businesses Within Our Communities”

Showcase your business | Connect with local businesses | Free business listing on our website | and More

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Chamber News

Member of the Month - CP Lamannos

Member of the Month – CP Lamannos

Looking for something good to eat? Try the best pizzas in Miller Place. C.P. La Mannos ...
President's Letter Dec 2025

President’s Letter Dec 2025

Dear Members,As we close out the year, I want to take a moment to reflect on the strength, resilience, and ...

Local News and Events

Event: Nicola Tesla Expo

Event: Nicola Tesla Expo

I want to share some information about Tesla Science Center's upcoming Nikola Tesla Expo on Saturday, July 11 in Shoreham ...
Beautification Project

Beautification Project

Another MSMP Chamber Beautification Project Completion of another beautification project sponsored by Mt. Sinai-Miller Place Chamber of Commerce.  Thanks to everyone involved in getting this well-needed upgrade to the Mt Sinai Post Office. Click here for more Chamber Pictures ...
Spring Network Meeting

Spring Network Meeting

Spring Networking Meeting. Main discussion topic: Tips for the Spring Real Estate Market. Guest speakers Brett Powers and Janet Germano. Don't miss out ...
Shamrocks and Strategy Networking Event

Shamrocks and Strategy Networking Event

Join us as we "Shamrock and Strategize" and kick-off the St Patty season with a high-impact networking meeting. Wed, March 11th at CP LaMannos in Miller Place. 6-8PM $25 PP Admission Fee Registration open ...
Brookhaven Coalition Grants 2026

Brookhaven Coalition Grants 2026

The BCCC is once again offering their ‘Small Business Improvement Award Grant’.  Only Chamber members are eligible to submit their letters of request.  Guidelines and contact info are below.  Your letter of request is your ‘formal application’, and must be submitted as a.pdf or Word document.Small Business Improvement Award-$1,200*Non-profits are ineligible, ONLY SMALL ...

Upcoming Events

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  • Like to have your venue hold a future chamber event or become a sponsor? Let us know.

Business owners and local residents are invited to subscribe to our newsletter to stay on top of local events.

Support our local businesses. We thank you choosing our wonderful local shops and restaurants.

Our members look forward to working with you.

Recent Chamber Beautification Projects

The chamber has acquired a grant from Suffolk County to install street lamp posts along Rt. 25A near the former King Kullen shopping center in Mount Sinai.

Current beautification project is to repair, paint, add new shutters and landscape. the exterior of the Mount Sinai post office.

PSEG grants have been acquired for landscape improvement projects that have been completed at three entry points to Mount Sinai, The gazebo located on Crystal Brook Hollow Road has been painted, a new roof installed and landscaped, the welcome sign at Echo Avenue and the Heritage Center sign located on Rt. 83 has been landscaped.