Doing Business in Suffolk County

Advocated by Suffolk County’s Economic Development & Workforce Housing, this website provides an entrance to numerous resources for starting, financing, expanding or relocating a business in Suffolk County, NY. These resources are provided by a multitude of public and private sources, from State and Federal agencies to local private non-profit organizations. This Suffolk County web site Welcomes You to the avenue of resources all of which are accessible to you here, simply by clicking through the portal's pages below.

Establishing Your Business in Suffolk County

Individuals wishing to start their own business can learn a lot from the resources available through Suffolk County’s network of Small Business Development Centers (SBDCs) . Many opportunities are available for entrepreneur’s who aspire to start their own business. From selecting the nature of your business, to creating a business plan and structure, to managing the expansion of a growing business or accessing capital, local resources are available through our links below. Explore the prospects of Suffolk County to find the help that best addresses your needs and the location of offices nearest you.

Agricultural and Fishing 

The Suffolk County Department of Economic Development is your link to the numerous federal, state and local programs that can help your business succeed!

Bids and Proposals 

BID, RFP & RFQ Announcement System

Business Certificate Information  

About Business Certificate, Basic in Filing a Business Certificate, Types of Business Certificates, Fees.

Business Resources 

Business Groups, Educational Groups, Small Business Development Center, Suffolk IDA, BID Members, Chambers of Commerce.

Business Services 

Consumer Affairs, Clerk's Office, Real Property Tax Service Agency, Treasurer's Office

Contract Process

Explanation of Process and Program Budget.

Financial Assistance 

Suffolk County Programs, LIDC Programs, Empire State Development (ESD) Programs, SUNY at Stony Brook Programs, Community Development Corporation (CDC) Programs.


Geographic Information Systems

Import and Export Assistance

Information for local businesses seeking to expand into the global marketplace.

Selling to Government Agencies 

Doing business with Suffolk County Government, New York State, Town and Villages.

Starting a Business 

How to get started, Federal Identification Number, Licenses and Permits, About Taxes, Sanitary Codes and Food Permits, What employers need to know, Who can help, and more.

Suffolk County Health Services – Business Resources

All new commercial construction and many existing tenant spaces require the approval of the Suffolk County Department of Health before an establishment is permitted to open for business.

Suffolk County Health Services – Wastewater Management, Permits and Applications

If you are building or expanding your home or business, the Suffolk County Department of Health Services may require that you obtain a permit to ensure that sewage disposal systems and water supply connections are safe, satisfactory and in compliance with all health codes.

Women and Minority Business

Women & Minorities Pre-Qualification Loan, Long Island Small Business Assistance Corporation, Women Business Enterprise Coalition / Suffolk County Coalition of Minority Businesses, Meetings, Events & Grants Bulletin Board.


Contract Process

Contract Process
Before the contract process can begin it is necessary to forward to the Economic Development Department the documents listed in the following document. Click here to download document

Program Budget
Please download and fill up the following document. Click here to download document