Businesses in Smithtown, New York
2,292 local businesses across 107 categories, from doctors & clinics, real estate agents and restaurants. 0.3% of everything listed in New York.
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Smithtown, NY has 2,292 businesses listed on USA Business Search in 107 categories across 16 ZIP codes. The most-listed are doctors & clinics, real estate agents and restaurants.
Updated October 2026Most listed in Smithtown
Doctors & clinicsReal estate agentsRestaurantsLawyersDentistsSpas & med spasSchools & tutoringMore shoppingHair salonsBusiness consulting
Home services
General contractors (29)House cleaning (14)Landscaping & lawn care (11)Movers & hauling (7)Plumbers (7)Kitchen & bath remodeling (7)Concrete & paving (6)Electricians (6)Roofers (6)HVAC & heating (5)Interior design (5)Pest control (4)Flooring (2)Home inspectors (2)Water & fire restoration (2)Handyman services (1)Locksmiths (1)Painters (1)Windows & doors (1)
Marketing & advertising
Auto
Food & drink
Health & medical
Beauty & personal care
Professional services
Real estate
Finance & insurance
Legal
Shopping & retail
Pets
Fitness & recreation
Hotels & travel
Education & childcare
Events & entertainment
Business & industrial
Community & faith
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More businesses in Smithtown
Advertising agencies (4)
Linx Communications Corporation
SMM Advertising
BluChip Marketing
Auto glass (2)
Top Edge Window Tinting
All American Glass Company
Campgrounds & RV parks (1)
Camp Harbor
Car wash & detailing (3)
Prime Shine Car Wash
Don's Hand CarWash
Smithtown Auto Spa
Event venues (4)
Smithtown Landing Country Club
Davinci Meeting Rooms
AMF SMITHTOWN LANES
Hotel Interactive
Farms & agriculture (1)
Natural Choice Farms
Flooring (2)
Pro-Formance Wood Floors
Flat Rate Carpet
Golf (3)
Golf Lounge 18
X-Golf Commack
Smithtown Landing Golf Course LLC
Graphic design (4)
71 Visuals
Isabel's Interiors
Ingram Design
Anastasiou Design
Handyman services (1)
Just-in Home Services, Inc.
Home inspectors (2)
Inspecticore
United Environmental Safety
Hotels & lodging (3)
Commack Inn
The Smithtown Inn
Hotel Community Forum
Locksmiths (1)
IAL Total Security
Outdoor adventure & tours (1)
Bucket List Tours NY
Painters (1)
Renovation Services Inc.
Pest control (4)
Mr. Landscaper Of Suffolk
Advanced Nuisance Wildlife Control Services
Suburban Exterminating
Cross Island Mosquito Tick and Turf, LLC
Pet stores (1)
Pet Supplies Plus Smithtown Grooming
Propane & energy (1)
United Propane
Property management (3)
Choice Professional Management
Amvi Realty, Llc
Island Associates
Tattoo & piercing (3)
Main Street Tattoo
Authentic Arts Tattoo and Piercing
Liberty Tattoo Company
Thrift & consignment (1)
SK Odds and Ends Thrift Shop
Towing (2)
Birchwood Towing
Body Shoppe Of Smithtown Inc
Water & fire restoration (2)
Tomcon Restoration
ServiceMaster Advanced Services
Web design (1)
Visionary Arts
Windows & doors (1)
Metrosolar
Common questions
How many businesses are listed in Smithtown, New York?
USA Business Search shows 2,292 businesses in Smithtown across 107 categories.
How does Smithtown compare with other New York cities?
Smithtown is #28 of 2,504 New York cities and towns we cover by number of listings, with 0.3% of everything listed in the state.
What kinds of businesses are most common in Smithtown?
The most-listed categories are doctors & clinics, real estate agents and restaurants.
How do I add a Smithtown business?
Listings are free. Use Add your business, or the Claim or fix link on any listing.