Facility	City	Industry	Status	Distance
Proto-tek Manufacturing, INC	Roseville	Military Armored Vehicle, Tank, and Tank Component Manufacturing 336992	LIKELY ACTIVE	0.8 KM
Minowitz Mfg CO	Roseville	Small Arms, Ordnance, and Ordnance Accessories Manufacturing 332994	UNVERIFIED	1.2 KM
Dynasty Fab LLC	Roseville	Plate Work Manufacturing 332313	LIKELY ACTIVE	2.0 KM
Aristo-cote, INC.	Fraser	Fabricated Structural Metal Manufacturing 332312	ACTIVE	3.1 KM
Fairlane Tool Company, INC.	Fraser	Machine Shops 332710	LIKELY ACTIVE	3.2 KM

Every listed plant in Macomb County

Also at this address

No other federal record shares this street address.

Where this record comes from

4 sources hold this plant, and 11 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 websiteOPERATING
first seen JUL 2026 · last seen OCT 2026
SAM.gov entity registrationOPERATING
Record HR7ZJZ4HYTQ8 · first seen DEC 2025 · last seen DEC 2025
DOL Form 5500 retirement plan filingsOPERATING
Record 382502121|MI|48066|29200 calahan · first seen DEC 2024 · last seen DEC 2024
SBA Paycheck Protection Program loan recordsEXISTENCE
Record MI|roseville|29200 calahan rd · first seen APR 2020 · last seen APR 2020

IN MACOMB COUNTY27 other plants share this one’s industry (Other Transportation Equipment Manufacturing, NAICS 3369); 11 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: RCO ENGINEERING INC · DEC 2025
Street address: SAM.gov: 29200 CALAHAN RD · DEC 2025
City: SAM.gov: ROSEVILLE · DEC 2025
State: SAM.gov: MI · DEC 2025
Coordinates: Census geocoder: 42.510784093481,-82.963325614464 · JUL 2026
Employees (band): DOL: 500+ · DEC 2024
Website: SAM.gov: http://www.rcoeng.com · DEC 2025
CAGE code: SAM.gov: 3K2U1 · DEC 2025
Retirement plan filing (Form 5500): DOL: 545 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024
PPP loan: SBA PPP: PPP loan x1, approved 2020-04-28, 500 jobs reported · APR 2020
SAM registration expires: SAM.gov: 2026-12-16 · DEC 2025

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