Operating signal within 12 months from two or more independent sources.
What they make
Other Measuring and Controlling Device Manufacturing334519- coating thickness gages
- inspection instruments
- measuring
- surface profile
- oven profile
- adhesion
- concrete moisture
- wall thickness
- steel structure painting
- automotive
- probes
NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026
Products
Recorded against the company rather than this address. Federal award and drug records name the company, not the plant, so we cannot say which of its sites makes these.
Where these came from
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Micronsight LLC | Potsdam | Analytical Laboratory Instrument Manufacturing 334516 | ACTIVE | 37.1 KM |
Also at this address
No other federal record shares this street address.
Where this record comes from
6 sources hold this plant, and 14 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 OSHA-OIS, RCRAINFO · EPA site type STATIONARY.
- The company’s own websiteOPERATINGfirst seen JUL 2026 · last seen OCT 2026
- SAM.gov entity registrationOPERATINGRecord MAGAAT949ZV1 · first seen APR 2026 · last seen APR 2026
- OSHA injury and illness reportsOPERATINGRecord 1454675 · first seen DEC 2025 · last seen DEC 2025
- DOL Form 5500 retirement plan filingsOPERATINGRecord 141491767|NY|13669|800 proctor ave · first seen SEP 2025 · last seen SEP 2025
- SBA Paycheck Protection Program loan recordsEXISTENCERecord NY|ogdensburg|800 proctor ave · first seen APR 2020 · last seen APR 2020
- EPA Facility Registry ServiceEXISTENCERecord 110070330363 · first seen SEP 2018 · last seen SEP 2018
ALSO RECORDED ASDEFELSKO CORP
IN ST. LAWRENCE COUNTY2 other plants share this one’s industry (Navigational, Measuring, Electromedical, and Control Instruments Manufacturing, NAICS 3345); 0 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.
- NameSOURCES DISAGREE
- EPA: DEFELSKO CORP · JUL 2026
- SAM.gov: DEFELSKO CORPORATION · APR 2026 · ON THIS PAGE
- Street address
- EPA: 800 PROCTOR AVE · JUL 2026 · ON THIS PAGE
- SAM.gov: 800 PROCTOR AVE · APR 2026 · ON THIS PAGE
- City
- EPA: OGDENSBURG · JUL 2026 · ON THIS PAGE
- SAM.gov: OGDENSBURG · APR 2026 · ON THIS PAGE
- State
- EPA: NY · JUL 2026 · ON THIS PAGE
- SAM.gov: NY · APR 2026 · ON THIS PAGE
- County (FIPS code)
- EPA: 36089 · SEP 2026
- CoordinatesSOURCES DISAGREE
- Census geocoder: 44.716119463414,-75.450596031029 · JUL 2026 · ON THIS PAGE
- EPA: 44.71615,-75.45037 · JUL 2026
- Employees (band)
- OSHA: 100-499 · DEC 2025
- Website
- SAM.gov: http://www.defelsko.com · APR 2026
- Year established
- NY DOS: 1965 · SEP 1965
- CAGE code
- SAM.gov: 1Y924 · APR 2026
- Retirement plan filing (Form 5500)
- DOL: 62 active participants, plan year ending 2025-09-30, 1 plan(s) · SEP 2025
- PPP loan
- SBA PPP: PPP loan x1, approved 2020-04-29, 80 jobs reported · APR 2020
- SAM registration expires
- SAM.gov: 2027-04-10 · APR 2026
- State business registrationSOURCES DISAGREE
- NY DOS: DEFELSKO CORPORATION, registered with the New York Department of State, Division of Corporations; Corporation; formed 1965-09-13; active · SEP 1965
- TX Comptroller: DEFELSKO CORPORATION, registered with the Texas Comptroller of Public Accounts; Corporation; active