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Superior Iron Works, LLC

45034 Underwood Ln, Ste 100, Sterling, VA 20166

LIKELY ACTIVELAST SEEN IN FEDERAL DATA SEP 2025 · 2 SOURCES

Operating signal within 24 months, or from a single source.

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What they make

Fabricated Structural Metal Manufacturing332312

Where it is

38.98154, -77.44259 · CENSUS TIGER
COUNTY
METRO AREA
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Other plants nearby

FacilityCityIndustryStatusDistance
Beck Developers, LLCSterlingFabricated Structural Metal Manufacturing
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UNVERIFIED0.0 KM
Century Steel Products, INC.SterlingFabricated Structural Metal Manufacturing
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UNVERIFIED0.0 KM
Nicomedia Steel LLCSterlingFabricated Structural Metal Manufacturing
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Trowbridge Steel Co., LLCSterlingFabricated Structural Metal Manufacturing
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Every listed plant in Loudoun County

Also at this address

No other federal record shares this street address.

WHERE THIS RECORD COMES FROM — 2 FEDERAL SOURCES, 7 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.

EPA cross-references this facility in AIR, AIRS/AFS, CEDS, OSHA-OIS · EPA site type STATIONARY.

SourceEvidenceFirst seenLast seen
SAM GOVOPERATINGSEP 2025SEP 2025
EPA FRSEXISTENCEJAN 2015JAN 2015
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
FIELDSOURCESIGNAL
ADDRESS LINE1EPA FRSJUL 2026
ADDRESS LINE1SAM GOVSEP 2025
CAGE CODESAM GOVSEP 2025
CITYEPA FRSJUL 2026
CITYSAM GOVSEP 2025
GEOMEPA FRSJUL 2026
NAMEEPA FRSJUL 2026
NAMESAM GOVSEP 2025
REGISTRATION EXPIRATIONSAM GOVSEP 2025
STATEEPA FRSJUL 2026
STATESAM GOVSEP 2025

Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

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