Suffolk County Business Name Search

Search for Suffolk County NY business names. A business name search can help you choose a business name, register a business, identify a trade name, trademark a business name, name an LLC, look up business owners, check if a business name is available, license a business, and more.


A Department of Labor operates at the federal, New York State, or local Suffolk County level to develop employment opportunities, ensure fair labor practices, and promote a competitive workforce. As part of this mission, the Department of Labor may be involved in licensing and registration for businesses under its jurisdiction, including registering business names in Suffolk County. A Suffolk County business name search through the Department of Labor can include business names for sole proprietors, partnerships, corporations, limited partnerships, or limited liability companies. This search can also identify the owner of a business and trademarked business names. Many Departments of Labor provide online access to business name search information.

Patchogue New York Department of Labor Patchogue NY 160 South Ocean Avenue 11772 631-687-4800

Suffolk Co. Department of Labor Hauppauge NY 725 Veterans Memorial Highway 11788 631-382-7722

Suffolk County Department of Labor Hauppauge NY 395 Oser Avenue 11788 631-853-3877


A Town or City Hall provides administrative services for the local Suffolk County community, including business services such as registering local businesses or processing applications for business licenses. Towns and City Halls in Suffolk County New York may also be responsible for issuing trade names to local businesses. They may provide online access to a business name search so that people can identify Suffolk County business names for sole proprietors, partnerships, corporations, limited partnerships, or limited liability companies. This search can also be used to identify the owner of a Suffolk County business as well as any trademarked business names. Town and City Halls may provide an online searchable database of local business names and information.

Brookhaven Town Hall Farmingville NY 1 Independence Hill 11738 631-451-7087

East Hampton Town hall East Hampton NY 300 Pantigo Place 11937

Huntington Town Hall Huntington NY 100 Main Street 11743 631-351-3014

Islip Town Hall Islip NY 655 Main Street 11751 631-224-5691

Riverhead Town Hall Riverhead NY 210 Howell Avenue 11901 631-727-3200

Shelter Island Town Hall Shelter Island NY 38 North Ferry Road 11964 631-749-0291

Shoreham Town Hall Shoreham NY 80 Woodville Road 11786 631-821-0680

Smithtown Town Hall Smithtown NY 99 West Main Street 11787 631-360-7512

Southampton Town Hall Southampton NY 116 Hampton Road 11968 631-283-6000