FactoryRegistry
Claim a page

Phase Four, INC.

12605 South Van Ness Avenue, Hawthorne, CA 90250

ACTIVELAST SEEN IN FEDERAL DATA OCT 2026 · 4 SOURCES

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

Visit websiteDirectionsGo to companyClaim this pageGet the badge
Homepage of Phase Four, INC.
Their homepage, crawled AUG 2026

What they make

Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing336415

Where it is

33.91828, -118.31785 · CENSUS TIGER
COUNTY
METRO AREA
ON GOOGLE MAPS
STREET VIEW

Other plants nearby

FacilityCityIndustryStatusDistance
Reflect Orbital INC.HawthorneGuided Missile and Space Vehicle Manufacturing
336414
ACTIVE0.1 KM
Vast, INC. (hawthorne)HawthorneGuided Missile and Space Vehicle Manufacturing
336414
ACTIVE0.2 KM
Space Exploration TechnologiesHawthorneGuided Missile and Space Vehicle Manufacturing
336414
UNVERIFIED0.5 KM
Space Exploration Technologies CORPHawthorneGuided Missile and Space Vehicle Manufacturing
336414
LIKELY ACTIVE0.6 KM
Northrop CORP Electronics Systems DivHawthorneAudio and Video Equipment Manufacturing
334310
UNVERIFIED0.7 KM

Every listed plant in Los Angeles County

Also at this address

No other federal record shares this street address.

Where this record comes from

4 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.

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

  • The company’s own websiteOPERATING
    first seen JUL 2026 · last seen OCT 2026
  • SAM.gov entity registrationOPERATING
    Record YBJLGEK2QL15 · first seen JUN 2026 · last seen JUN 2026
  • DOL Form 5500 retirement plan filingsOPERATING
    Record 473122544|CA|90250|12605 s van ness ave · first seen DEC 2024 · last seen DEC 2024
  • EPA Facility Registry ServiceEXISTENCE
    Record 110071422647 · first seen MAY 2023 · last seen MAY 2023

IN LOS ANGELES COUNTY523 other plants share this one’s industry (Aerospace Product and Parts Manufacturing, NAICS 3364); 125 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: PHASE FOUR INC · JUL 2026 · ON THIS PAGE
SAM.gov: PHASE FOUR, INC. · JUN 2026 · ON THIS PAGE
Street addressSOURCES DISAGREE
EPA: 12605 S VAN NESS AVE · JUL 2026
SAM.gov: 12605 SOUTH VAN NESS AVENUE · JUN 2026 · ON THIS PAGE
City
EPA: HAWTHORNE · JUL 2026 · ON THIS PAGE
SAM.gov: HAWTHORNE · JUN 2026 · ON THIS PAGE
State
EPA: CA · JUL 2026 · ON THIS PAGE
SAM.gov: CA · JUN 2026 · ON THIS PAGE
County (FIPS code)
EPA: 06037 · SEP 2026
Coordinates
Census geocoder: 33.918283153577,-118.31785096252 · JUL 2026 · ON THIS PAGE
EPA: 33.918079,-118.317826 · JUL 2026 · ON THIS PAGE
Employees (band)
DOL: 20-99 · DEC 2024
Website
SAM.gov: www.phasefour.io · JUN 2026
CAGE code
SAM.gov: 7AH38 · JUN 2026
Retirement plan filing (Form 5500)
DOL: 25 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024
SAM registration expires
SAM.gov: 2027-01-09 · JUN 2026

Report a correction · Request removal