Assem-tech, INC.
1600 Kooiman St, Grand Haven, MI 49417
Operating signal within 12 months from two or more independent sources.
What they make
Current-Carrying Wiring Device Manufacturing335931ASSEM-tech Inc. is a specialty contract manufacturing company providing engineering, manufacturing, and integrated assembly services. The company manufactures machined parts, circuit boards, cable assemblies, wire harnesses, and panel/rack enclosures, and offers design engineering support to improve designs for cost reduction.
SUMMARIZED FROM THE COMPANY’S OWN WEBSITE
CERTIFICATIONS — LISTED ON THE COMPANY’S WEBSITE
- AS9100
- ISO 9001
Read from this company’s own website on August 9, 2026. Nobody at the facility has confirmed it here, and FactoryRegistry has not verified these — unlike operating status, which comes from independent public records. A certificate can lapse without the website changing, so ask the facility for current ones.
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Harding Energy, Inc. | Grand Haven | All Other Miscellaneous Electrical Equipment and Component Manufacturing 335999 | LIKELY ACTIVE | 0.2 KM |
| Light CORP INC. | Grand Haven | Commercial, Industrial, and Institutional Electric Lighting Fixture Manufacturing 335132 | ACTIVE | 1.6 KM |
| Macro Magnetics LLC | Grand Haven | Power, Distribution, and Specialty Transformer Manufacturing 335311 | ACTIVE | 1.5 KM |
| GlobalTec - Oleco | Spring Lake | Current-Carrying Wiring Device Manufacturing 335931 | LIKELY ACTIVE | 6.3 KM |
| Oleco, INC. | Spring Lake | Current-Carrying Wiring Device Manufacturing 335931 | ACTIVE | 6.3 KM |
Also at this address
No other federal record shares this street address.
WHERE THIS RECORD COMES FROM — 3 FEDERAL SOURCES, 10 FIELDS
Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| COMPANY SITE | OPERATING | JUL 2026 | AUG 2026 |
| SAM GOV | OPERATING | OCT 2025 | OCT 2025 |
| SBA LOANS | EXISTENCE | NOV 2018 | NOV 2018 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| ADDRESS LINE1 | SAM GOV | OCT 2025 |
| CAGE CODE | SAM GOV | OCT 2025 |
| CITY | SAM GOV | OCT 2025 |
| GEOM | CENSUS GEOCODER | JUL 2026 |
| NAME | SAM GOV | OCT 2025 |
| REGISTRATION EXPIRATION | SAM GOV | OCT 2025 |
| SBA LOAN | SBA LOANS | NOV 2018 |
| STATE | SAM GOV | OCT 2025 |
| WEBSITE | SAM GOV | OCT 2025 |
| YEAR ESTABLISHED | SITE YEAR | AUG 2026 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.