John J. Mazur, INC.

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
IIIsland Instrument CORP.	Deer Park	Precision Turned Product Manufacturing 332721	◐ LIKELY ACTIVE	0.5 KM
JAJamco Aerospace, INC.	Deer Park	Machine Shops 332710	◐ LIKELY ACTIVE	0.7 KM
Tek Precision CO Limited	Deer Park	Aircraft Manufacturing 336411	◐ LIKELY ACTIVE	0.8 KM
Precision Metals CORP.	Bay Shore	Machine Shops 332710	● ACTIVE	1.2 KM
CMCentury Metal Parts CORP	Bay Shore	Machine Shops 332710	◐ LIKELY ACTIVE	1.4 KM

Every listed plant in Suffolk County

Also at this address

No other federal record shares this street address.

Where this record comes from

3 sources hold this plant, and 13 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.

• SAM.gov entity registrationOPERATING
  Record GKNRULCSFDV1 · first seen SEP 2025 · last seen SEP 2025
• DOL Form 5500 retirement plan filingsOPERATING
  Record 111821358|NY|11729|94 k e jefryn blvd · first seen DEC 2024 · last seen DEC 2024
• SBA Paycheck Protection Program loan recordsEXISTENCE
  Record NY|deer park|94 e jefryn blvd · first seen APR 2020 · last seen JAN 2021

IN SUFFOLK COUNTY35 other plants share this one’s industry (Other Fabricated Metal Product Manufacturing, NAICS 3329); 8 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

SAM.gov: JOHN J. MAZUR, INC. · SEP 2025

Street address

SAM.gov: 94 E JEFRYN BLVD · SEP 2025

City

SAM.gov: DEER PARK · SEP 2025

State

SAM.gov: NY · SEP 2025

Coordinates

Census geocoder: 40.75804862641,-73.298484072751 · JUL 2026

Employees (band)

DOL: 1-19 · DEC 2024

Website

SAM.gov: www.johnjmazurinc.com · SEP 2025

Year established

NY DOS: 1957 · FEB 1957

CAGE code

SAM.gov: 26444 · SEP 2025

Retirement plan filing (Form 5500)

DOL: 8 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024

PPP loan

SBA PPP: PPP loan x1, approved 2020-04-28, 12 jobs reported · APR 2020

SAM registration expires

SAM.gov: 2026-09-18 · SEP 2025

State business registration

NY DOS: JOHN J. MAZUR, INC., registered with the New York Department of State, Division of Corporations; Corporation; formed 1957-02-05; active · FEB 1957