Facility	City	Industry	Status	Distance
Lafarge West, INC.	Longmont	Ready-Mix Concrete Manufacturing 327320	UNVERIFIED	0.9 KM
Holcim-wcr INC - Francis	Longmont Area	Ready-Mix Concrete Manufacturing 327320	LIKELY ACTIVE	1.2 KM
Golden Concrete Lllp (sec Screen)	Longmont Area	Ready-Mix Concrete Manufacturing 327320	UNVERIFIED	1.4 KM
Aggregate Industries - Wcr, INC.	Longmont	Asphalt Paving Mixture and Block Manufacturing 324121	UNVERIFIED	7.6 KM
Erie Pre-cast	Erie	Other Concrete Product Manufacturing 327390	LIKELY ACTIVE	11.0 KM

Every listed plant in Boulder County

Also at this address

No other federal record shares this street address.

Where this record comes from

2 sources hold this plant, and 9 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.

SAM.gov entity registrationOPERATING
Record H9Z1VT8MPM83 · first seen MAR 2026 · last seen OCT 2026
The company’s own websiteOPERATING
first seen JUL 2026 · last seen OCT 2026

IN BOULDER COUNTY16 other plants share this one’s industry (Cement and Concrete Product Manufacturing, NAICS 3273); 1 of them has 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: PROMETHEUS MATERIALS INC.
Street address: SAM.gov: 1350 KANSAS AVE
City: SAM.gov: LONGMONT
State: SAM.gov: CO
Coordinates: Census geocoder: 40.147372910537,-105.116167970298 · JUL 2026
Website: SAM.gov: www.prometheusmaterials.com
Year established: Company website: 2021 · AUG 2026
CAGE code: SAM.gov: 90TZ0
SAM registration expires: SAM.gov: 2027-02-27

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