Every new New York business filing, every dayNational Onsite
Jonathan Delisa, Registered Agent
National Onsite provides septic inspection software for generating reports onsite. The website describes a simple, fast, paper-free reporting system for septic inspectors. The LLC filing lists a New York address, while the website shows a New Hampshire address, possibly a separate location.
Filed January 2, 2024 · Portchester, NY · Westchester County
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New York Department of State, Division of Corporations · Entity 7218382 · Retrieved May 5, 2026
About National Onsite
NATIONAL ONSITE SERVICES INCORPORATED was incorporated in New York on January 2, 2024, with Jonathan Delisa as the personally filed registered agent from Portchester. Its domain was registered over three years before filing, on October 17, 2020, through NameCheap, and the website matched the filing. The site is a modern Webflow site, and we estimate revenue between $100K and $1M with 6 to 25 employees. The company shares its address with two other entities and its owner name with four others. No annual report or EIN on file yet.
- Owner Jonathan Delisa filed personally as registered agent.
- Domain registered 1,172 days before the filing date.
- Website confirmed to match the company name and address.
- We estimate revenue of $100K-$1M and 6-25 employees.
- Shares address with 2 other entities and owner name with 4 others.
- No annual report or EIN on file yet.
Compiled from the state record, the company's public web presence, and our own research; revenue, employee, and footprint figures are estimates, not verified financials. Updated August 23, 2026.
One of 3 new businesses registered in Portchester in January 2024, and the only software business registered there that month.
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Filing Details
Verified Business Profile
Contact Information
Verified Website Profile
We matched this business to its website and pulled the domain's registration (WHOIS) record. Domain age is one of the strongest signals that a filing is a truly new business and not a re-filing or paperwork change.
Frequently Asked Questions
When was National Onsite registered?
National Onsite was registered as Corp on January 2, 2024 in New York.
Where is National Onsite located?
National Onsite is based in Portchester, NY, 10573, in Westchester County.
What type of business is National Onsite?
National Onsite is classified as a software business (septic inspection software).
Does National Onsite have an EIN on file?
No EIN was found on file for National Onsite at the time of registration.
Who Sells to This Business
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