Operating signal within 12 months from two or more independent sources.
What they make
Other Millwork (including Flooring)321918- CNC machining
- prototype machining
- 5-axis machining
- aluminum parts
- one-off production
- small quantity
- hardware development
NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Sdi LLC | Irvine | All Other Miscellaneous Wood Product Manufacturing 321999 | UNVERIFIED | 1.0 KM |
| Abc Custom Wood Shutters | Lake Forest | Wood Window and Door Manufacturing 321911 | UNVERIFIED | 3.1 KM |
| Sierra Pacific Windows-Southern CA | Irvine | Wood Window and Door Manufacturing 321911 | LIKELY ACTIVE | 3.6 KM |
| David Shultz | Laguna Hills | All Other Miscellaneous Wood Product Manufacturing 321999 | ACTIVE | 4.2 KM |
| Pro-cure | Aliso Viejo | Wood Container and Pallet Manufacturing 321920 | ACTIVE | 9.1 KM |
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 websiteOPERATINGfirst seen JUL 2026 · last seen OCT 2026
- SAM.gov entity registrationOPERATINGRecord DJRHP4Y9CY75 · first seen NOV 2025 · last seen NOV 2025
- EPA Facility Registry ServiceEXISTENCERecord 110071129967 · first seen OCT 2021 · last seen OCT 2021
IN ORANGE COUNTY85 other plants share this one’s industry (Other Wood Product Manufacturing, NAICS 3219); 13 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
- EPA: HILLTOP TECHNOLOGY LABORATORY, INC. · JUL 2026 · ON THIS PAGE
- SAM.gov: HILLTOP TECHNOLOGY LABORATORY, INC. · NOV 2025 · ON THIS PAGE
- Street address
- EPA: 51 PARKER · JUL 2026 · ON THIS PAGE
- SAM.gov: 51 PARKER · NOV 2025 · ON THIS PAGE
- City
- EPA: IRVINE · JUL 2026 · ON THIS PAGE
- SAM.gov: IRVINE · NOV 2025 · ON THIS PAGE
- State
- EPA: CA · JUL 2026 · ON THIS PAGE
- SAM.gov: CA · NOV 2025 · ON THIS PAGE
- County (FIPS code)
- EPA: 06059 · SEP 2026
- CoordinatesSOURCES DISAGREE
- Census geocoder: 33.65744982415,-117.703208885401 · JUL 2026 · ON THIS PAGE
- EPA: 33.657969,-117.702157 · JUL 2026
- Website
- SAM.gov: http://www.hilltop21.com/ · NOV 2025
- CAGE code
- SAM.gov: 7PA28 · NOV 2025
- SAM registration expires
- SAM.gov: 2026-11-13 · NOV 2025


