Present in a source dataset, with no recent operating signal.
What they make
Iron and Steel Mills and Ferroalloy Manufacturing331110- permanent magnets
- assemblies
- precision thin metals
- flexible composites
- samarium cobalt
- neodymium iron boron
- two microns thin
- vertical markets
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
Open positions
Openings read from Arnold Magnetic Technologies CORP’s own job board on ADP, last checked OCT 26, 2026. FactoryRegistry does not host applications — each title opens the posting where the company published it.
- Accounts Receivable SpecialistRochester, NY, US · posted OCT 23, 2026
- Maintenance TechnicianNorfolk, NE, US · posted OCT 20, 2026
- Quality ManagerRochester, NY, US · posted OCT 19, 2026
- Die Cast - 2nd Shift PositionGreenville, OH, US · posted OCT 15, 2026
- Facilities Maintenance ManagerWoodstock, IL, US · posted OCT 14, 2026
- Coil AssemblerNorfolk, NE, US · posted OCT 8, 2026
- Industrial Instrumentation TechnicianNorfolk, NE, US · posted OCT 8, 2026
- Manufacturing EngineerMadison, WI, US · posted OCT 7, 2026
- Quality ManagerGreenville, OH, US · posted OCT 6, 2026
- CNC Machinist III--2nd ShiftGreenville, OH, US · posted OCT 6, 2026
CERTIFICATIONS
| Standard | Issued by | Number | Valid to | Read from |
|---|---|---|---|---|
| AS9100DCertificate | PJR | — | — | The certificate |
| ISO 9001:2015Certificate | PJR | — | — | The certificate |
Read from what the company publishes, on October 12, 2026. FactoryRegistry has not verified these with the issuer; ask the facility for current certificates.
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Techalloy CO INC | Union | Iron and Steel Mills and Ferroalloy Manufacturing 331110 | LIKELY ACTIVE | 7.3 KM |
| Tricast/presfore CORP | Crystal Lake | Iron and Steel Mills and Ferroalloy Manufacturing 331110 | UNVERIFIED | 25.4 KM |
| Barb City Steel CORP | Dekalb | Fabricated Structural Metal Manufacturing 332312 | ACTIVE | 36.9 KM |
| M.s. Action Machining CORP | Mchenry | Iron and Steel Mills and Ferroalloy Manufacturing 331110 | LIKELY ACTIVE | 28.8 KM |
Also at this address
No other federal record shares this street address.
Where this record comes from
1 source holds this plant, and 6 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 EIS, MN-TEMPO · EPA site type STATIONARY.
- EPA Facility Registry ServiceEXISTENCERecord 110068382137 · first seen JUN 2016 · last seen JUN 2017
IN MCHENRY COUNTY4 other plants share this one’s industry (Iron and Steel Mills and Ferroalloy Manufacturing, NAICS 3311); 1 of them has 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: ARNOLD MAGNETIC TECHNOLOGIES · OCT 2026
- Street address
- EPA: 300 N WEST ST · OCT 2026
- City
- EPA: MARENGO · OCT 2026
- State
- EPA: IL · OCT 2026
- County (FIPS code)
- EPA: 17111 · OCT 2026
- Coordinates
- EPA: 42.25266,-88.61721 · OCT 2026