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Hillside Composites LLC

1160 Pioneer Way, Ste K, El Cajon, CA 92020

ACTIVELAST SEEN IN FEDERAL DATA OCT 2026 · 3 SOURCES

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

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What they make

Leather and Hide Tanning and Finishing316110

Where it is

32.81136, -116.96782 · CENSUS TIGER
COUNTY
METRO AREA
ON GOOGLE MAPS
STREET VIEW

Other plants nearby

FacilityCityIndustryStatusDistance
Zaga CustomChula VistaUpholstered Household Furniture Manufacturing
337121
 REPORTED CLOSED25.7 KM
Gsi Capital Partners LLCSan MarcosLeather and Hide Tanning and Finishing
316110
 UNVERIFIED39.5 KM

Every listed plant in San Diego County

Also at this address

No other federal record shares this street address.

Where this record comes from

3 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.

EPA cross-references this facility in RCRAINFO · EPA site type STATIONARY.

  • The company’s own websiteOPERATING
    first seen AUG 2026 · last seen OCT 2026
  • SAM.gov entity registrationOPERATING
    Record KCMQL5NL4C75 · first seen APR 2026 · last seen APR 2026
  • EPA Facility Registry ServiceEXISTENCE
    Record 110071388118 · first seen MAR 2023 · last seen MAR 2023

ALSO RECORDED ASHILLSIDE COMPOSITES

IN SAN DIEGO COUNTY12 other plants share this one’s industry (Leather and Hide Tanning and Finishing, NAICS 3161); 2 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.

NameSOURCES DISAGREE
EPA: HILLSIDE COMPOSITES · JUL 2026
SAM.gov: HILLSIDE COMPOSITES LLC · APR 2026 · ON THIS PAGE
Street addressSOURCES DISAGREE
EPA: 1160 PIONEER WAY SUITE K · JUL 2026
SAM.gov: 1160 PIONEER WAY · APR 2026 · ON THIS PAGE
City
EPA: EL CAJON · JUL 2026 · ON THIS PAGE
SAM.gov: EL CAJON · APR 2026 · ON THIS PAGE
State
EPA: CA · JUL 2026 · ON THIS PAGE
SAM.gov: CA · APR 2026 · ON THIS PAGE
County (FIPS code)
EPA: 06073 · SEP 2026
Coordinates
Census geocoder: 32.811356301328,-116.967818296695 · JUL 2026 · ON THIS PAGE
EPA: 32.81138,-116.967771 · JUL 2026 · ON THIS PAGE
Website
SAM.gov: www.hillsidecomposites.com · APR 2026
CAGE code
SAM.gov: 7SWQ7 · APR 2026
SAM registration expires
SAM.gov: 2027-04-20 · APR 2026

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