Thayer's Y-knot Boatyard

352 Main St, North Haven, ME 04853

LIKELY ACTIVELAST SEEN IN FEDERAL DATA APR 2025 · 3 SOURCES

Operating signal within 24 months, or from a single source.

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What they make

Ship Building and Repairing336611

Where it is

44.13722, -68.87369 · CENSUS TIGER

COUNTY

Knox County

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Other plants nearby

Facility	City	Industry	Status	Distance
J O Brown & Son	North Haven	Ship Building and Repairing 336611	LIKELY ACTIVE	1.1 KM
Dark Harbor Boat Yard CORP	Islesboro	Boat Building 336612	UNVERIFIED	14.6 KM
Billings Diesel and Marine Services Boatyard	Stonington	Ship Building and Repairing 336611	LIKELY ACTIVE	15.5 KM
Rockport Marine	Rockport	Boat Building 336612	LIKELY ACTIVE	16.8 KM
Seal Cove Boat Yard	Harborside	Boat Building 336612	UNVERIFIED	24.0 KM

Every listed plant in Knox County

Also at this address

No other federal record shares this street address.

Where this record comes from

3 sources hold this plant, and 8 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.

EPA cross-references this facility in ME-EFIS, NPDES, OSHA-OIS · EPA site type STATIONARY.

EPA ECHO compliance recordsOPERATING
first seen APR 2025 · last seen APR 2025
SBA Paycheck Protection Program loan recordsEXISTENCE
Record ME|north haven|352 main st · first seen APR 2020 · last seen APR 2020
EPA Facility Registry ServiceEXISTENCE
Record 110039668650 · first seen OCT 2015 · last seen OCT 2015

IN KNOX COUNTY16 other plants share this one’s industry (Ship and Boat Building, NAICS 3366); 9 of them have a size band on record.

What each source says

Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

Name: EPA: THAYER'S Y-KNOT BOATYARD · OCT 2026
Street address: EPA: 352 MAIN ST · OCT 2026
City: EPA: NORTH HAVEN · OCT 2026
State: EPA: ME · OCT 2026
County (FIPS code): EPA: 23013 · OCT 2026
Coordinates: EPA: 44.13722,-68.87369 · OCT 2026
Employees (band): SBA PPP: 1-19 · APR 2020
PPP loan: SBA PPP: PPP loan x1, approved 2020-04-14, 7 jobs reported · APR 2020

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