Every new New York business filing, every dayNew Businesses Filed in Port Jefferson, NY
205 newly registered businesses tracked in Port Jefferson, New York. Browse by category or see the latest filings below.
Updated August 18, 2026 · Most recent business filing Jul 22, 2026
205
Total Filings
9
Last 30 Days
20
Categories
Every new New York filing, every day
See how it worksAbout New Port Jefferson Businesses
Port Jefferson, NY has 205 newly registered businesses in our database. 9 of those landed in the past 30 days. We refresh this page daily as new Port Jefferson companies appear in the New York Division of Corporations records.
The most active industries in Port Jefferson are Real Estate (15), Construction (4), and Restaurant (4). Use the category list below to narrow the results to a single industry, or scroll down for the most recent records of any type.
Every entry shows the business name, filing date, and category, plus verified owner and contact information where we have it. The latest Port Jefferson business filing was recorded on Jul 22, 2026. You can jump back to the full New York view any time to compare Port Jefferson against other markets.
Business Categories
Real Estate15Construction4Restaurant4Retail4Consulting3Financial Services3Real Estate Agency3Technology3Holding Company3Real Estate Holding2
Browse this city by filing month ›Recent Filings
SHARPE MOBILE DETAILING LLCVerified
Mobile Car Detailing·Port Jefferson, NY
Velocity Auto PerformanceVerified
Auto Repair·PORT JEFFERSON, NY
SilenoVerified
Technology·Port Jefferson, NY
1615 PROPERTY HOLDINGS LLCVerified
Real Estate·Port Jefferson, NY
Port Jefferson Launder CenterVerified
Laundry Services·Port Jefferson, NY
Stella LuceVerified
Fashion & Apparel·Port Jefferson, NY
Jolie Powell RealtyVerified
Real Estate·Port Jefferson, NY
Easy Fix SolutionsVerified
Door Services·Port Jefferson, NY
Tasty Sweets N' TreatsVerified
Bakery·Port Jefferson, NY
Avant-Garde TechnologiesVerified
Technology Consulting·Port Jefferson, NY
Frequently Asked Questions
How many new businesses are registered in Port Jefferson, NY?
DayOneLead tracks 205 newly registered businesses in Port Jefferson, with about 9 added in the last 30 days.
How fresh is the Port Jefferson business data?
We refresh this page every day from the New York Division of Corporations. The latest Port Jefferson business filing we recorded was on Jul 22, 2026.
What are the most common new businesses in Port Jefferson?
The most active industries among new Port Jefferson registrations are Real Estate, Construction, and Restaurant. You can filter by any category to narrow the list.
What information is included for each Port Jefferson business?
Each entry shows the business name, filing date, and category, plus a verified owner name, phone, email, and website wherever we can confirm them.
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