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 Manufacturing335931- contract manufacturing
- integrated assembly services
- circuit boards
- cable assemblies
- wire harnesses
- design engineering support
- West Michigan
NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026
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 |
| Oleco, INC. | Spring Lake | Current-Carrying Wiring Device Manufacturing 335931 | ACTIVE | 6.3 KM |
| Lg Industries LLC | Norton Shores | Showcase, Partition, Shelving, and Locker Manufacturing 337215 | ACTIVE | 9.4 KM |
Also at this address
No other federal record shares this street address.
Where this record comes from
4 sources hold this plant, and 12 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.
- The company’s own websiteOPERATINGfirst seen JUL 2026 · last seen OCT 2026
- SAM.gov entity registrationOPERATINGRecord VZL9UDJV1283 · first seen OCT 2025 · last seen SEP 2026
- SBA Paycheck Protection Program loan recordsEXISTENCERecord MI|grand haven|1600 kooiman st · first seen MAR 2021 · last seen MAR 2021
- SBA 7(a) and 504 loan recordsEXISTENCEfirst seen NOV 2018 · last seen NOV 2018
IN OTTAWA COUNTY5 other plants share this one’s industry (Other Electrical Equipment and Component Manufacturing, NAICS 3359); 4 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: ASSEM-TECH, INC. · SEP 2026
- Street address
- SAM.gov: 1600 KOOIMAN ST · SEP 2026
- City
- SAM.gov: GRAND HAVEN · SEP 2026
- State
- SAM.gov: MI · SEP 2026
- Coordinates
- Census geocoder: 43.04973904465,-86.223953082708 · JUL 2026
- Employees (band)
- SBA PPP: 20-99 · MAR 2021
- Website
- SAM.gov: WWW.ASSEM-TECH.com · SEP 2026
- Year established
- Company website: 1985 · AUG 2026
- CAGE code
- SAM.gov: 0AZ47 · SEP 2026
- PPP loan
- SBA PPP: PPP loan x2, approved 2021-03-27, 23 jobs reported · MAR 2021
- SAM registration expires
- SAM.gov: 2027-09-23 · SEP 2026
- SBA loans
- SBA: 7a loan x4, jobs 18.0 · NOV 2018


