Welcome to Nassau County! The western half of
Long Island in southern New York State.
Innovative industry High-Tech infrastructure Transit-oriented-development Placemaking Mixed-use development Global brand headquarters Vibrant downtowns Corporate and industry parks Beautiful beaches World-class golfing and fishing Nationally ranked k-12 schools Nassau County boasts all of that, and so much more. In conjunction with our many partners, the NCIDA is committed to fostering an environment where businesses can thrive and expand — and where our fellow residents are proud to live, employees come to work and everyone loves to play.
Nassau County delivers the best of all things—walkable downtowns, suburban charm, the nearby buzz of New York City, and one-step access to the world. Come to the place top-tier talent and innovative businesses call home.
Explore Nassau County
An interactive map of Nassau County to help you navigate our neighborhoods, roads and highways, parks, schools, and more.
COVID-19 resources
Find information on vaccinations, testing and programs to mitigate the effects of COVID-19 on our local economy.
Key industries
Learn about our diverse economy and workforce, and why Nassau County is the premier location for several major industry clusters.
Doing business here
Nassau County offers incomparable opportunities for businesses of all sizes and industries to thrive.
Living here
Nassau County offers residents the best of all things for living, working and playing.
Work with us
The NCIDA is always looking for qualified service providers and from time to time, may issue request for qualifications for various services.
Upcoming Events
Latest News
Newsday: Supplier of industrial chemicals plans $10 million expansion in Great Neck
May 16, 2022
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Innovate LI: No. 679: On Videogames, Taxers, with Island IDAs In Beast Mode
May 10, 2022
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