Siegfried Consultants LLC

535 Mary Ellen Rd, Rochester Hills, MI 48307

ACTIVELAST SEEN IN FEDERAL DATA OCT 2026 · 2 SOURCES

Operating signal within 12 months from two or more independent sources.

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Their homepage, crawled AUG 2026

What they make

Fabricated Structural Metal Manufacturing332312

custom components
Government
Pharmaceuticals
Natural Resources
Transportation Sea
Defense Logistics Agency
Tel Aviv
Air Force
Defense Advanced Research Projects Agency
Department
Homeland Security

NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026

Products

Sold by SIEGFRIED CONSULTANTS LLC · 25

Ammunition, Through 30mm · Chemicals · Communications Security Equipment And Components · Cutting Tools For Machine Tools · Fuel Oils · Fuels, Solid · Gases: Compressed And Liquefied · Ground Effect Vehicles · Hardware, Commercial · Hardware, Weapon System · Liquid And Gas Flow, Liquid Level, And Mechanical Motion Measuring Instruments · Lumber And Related Basic Wood Materials · Miscellaneous Ammunition · Miscellaneous Construction Materials · Miscellaneous Ship And Marine Equipment · Motorcycles, Motor Scooters, And Bicycles · O-Rings · Passenger Motor Vehicles · Prefabricated And Portable Buildings · Small Craft · Storage Tanks · Structural Shapes, Nonferrous Base Metal · Tractor, Full Tracked, Low Speed · Trailers · Vehicular Cab, Body, And Frame Structural Components

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

25 from usaspending_psc · Federal registry

Supplied under federal award 140FS224P0239 (2024-06-24), PSC . An award shows what the government bought from this company; it does not establish which of its sites made it.

Where it is

42.67342, -83.15082 · CENSUS TIGER

COUNTY

Oakland County

METRO AREA

Detroit-Warren-Dearborn, MI

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Open this address

STREET VIEW

Open street-level view — AUG 2018

Other plants nearby

Facility	City	Industry	Status	Distance
Prefix Corporation	Rochester Hills	Automobile and Light Duty Motor Vehicle Manufacturing 336110	ACTIVE	1.3 KM
Air and Liquid Systems INC	Rochester Hills	Fabricated Structural Metal Manufacturing 332312	UNVERIFIED	1.8 KM
Crane Technologies Group, INC.	Rochester Hills	Overhead Traveling Crane, Hoist, and Monorail System Manufacturing 333923	ACTIVE	2.3 KM
3-Dimensional Services	Rochester Hills	Sheet Metal Work Manufacturing 332322	LIKELY ACTIVE	3.6 KM
Monroe Engineering LLC	Rochester Hills	Hardware Manufacturing 332510	ACTIVE	5.5 KM

Every listed plant in Oakland County

Also at this address

No other federal record shares this street address.

Where this record comes from

2 sources hold this plant, and 8 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 EVF1LWNKX8R1 · first seen APR 2026 · last seen SEP 2026

IN OAKLAND COUNTY57 other plants share this one’s industry (Architectural and Structural Metals Manufacturing, NAICS 3323); 28 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: SIEGFRIED CONSULTANTS LLC · SEP 2026
Street address: SAM.gov: 535 MARY ELLEN RD · SEP 2026
City: SAM.gov: ROCHESTER HILLS · SEP 2026
State: SAM.gov: MI · SEP 2026
Coordinates: Census geocoder: 42.673419683304,-83.150816008031 · JUL 2026
Website: SAM.gov: WWW.siegfriedconsultantsllc.com · SEP 2026
CAGE code: SAM.gov: 8DDH4 · SEP 2026
SAM registration expires: SAM.gov: 2027-09-29 · SEP 2026

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