- Long Island Association
The Long Island Association is the largest business organization in New York. One of their purposes is to act as an umbrella organization, providing products and services designed to assist the growth of businesses. Business benefits include networking, marketing and advertising, training and consulting services, and business referrals.
- Long Island Business News Home Page
Long Island Business News is Long Island's only publication devoted to local commerce and has been the premier source of news and data on business, economic trends, and the region's entrepreneurial sector for more than 50 years.
- Ronkonkoma Chamber of Commerce
Established for the purpose of promoting business, providing information, and to take a leadership role in promoting community pride. The Chamber is the platform for business to provide leadership, education, and advocacy so the Greater Ronkonkoma area thrives in the 21st century.
- Sayville Chamber of Commerce
The Sayville Chamber of Commerce lists town events, tourism information, Chamber members, and business professionals. There is also an interactive map that lists names and phone numbers of shops and merchants in Sayville.