Facility	City	Industry	Status	Distance
Corrugated Packaging Aurora CT	North Aurora, IL 60502	Corrugated and Solid Fiber Box Manufacturing 322211	LIKELY ACTIVE	2.6 KM
International Paper CO.	Aurora	Corrugated and Solid Fiber Box Manufacturing 322211	UNVERIFIED	2.6 KM
Greif Packaging INC LLC	Naperville	Other Paperboard Container Manufacturing 322219	LIKELY ACTIVE	2.5 KM
Greif Naperville	Naperville	Other Paperboard Container Manufacturing 322219	LIKELY ACTIVE	2.6 KM
International Paper CO.	Aurora	Corrugated and Solid Fiber Box Manufacturing 322211	UNVERIFIED	4.0 KM

Every listed plant in DuPage County

Also at this address

No other federal record shares this street address.

Where this record comes from

5 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 VFHJVM5UN528 · first seen MAY 2026 · last seen MAY 2026
OSHA injury and illness reportsOPERATING
Record 1406336 · first seen DEC 2025 · last seen DEC 2025
DOL Form 5500 retirement plan filingsOPERATING
Record 363309388|IL|60502|2270 white oak cir · first seen DEC 2024 · last seen DEC 2024
SBA Paycheck Protection Program loan recordsEXISTENCE
Record IL|aurora|2270 white oak cir · first seen APR 2020 · last seen APR 2020

IN DUPAGE COUNTY40 other plants share this one’s industry (Converted Paper Product Manufacturing, NAICS 3222); 22 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: DIAMOND ENVELOPE CORP · MAY 2026
Street address: SAM.gov: 2270 WHITE OAK CIR · MAY 2026
City: SAM.gov: AURORA · MAY 2026
State: SAM.gov: IL · MAY 2026
Coordinates: Census geocoder: 41.79675729201,-88.259894907616 · JUL 2026
Employees (band): OSHA: 20-99 · DEC 2025
Website: SAM.gov: www.diamondenvelope.com · MAY 2026
CAGE code: SAM.gov: 9LQB6 · MAY 2026
Retirement plan filing (Form 5500): DOL: 72 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024
PPP loan: SBA PPP: PPP loan x1, approved 2020-04-07, 78 jobs reported · APR 2020
SAM registration expires: SAM.gov: 2027-05-13 · MAY 2026

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