Advanced Materials Joining Corporation

What they make

• Advanced Technology
• electron beam welding
• gas tungsten arc welding
• laser welding
• cutting
• machining
• difficult-to-weld metals
• conventional milling
• Defense
• tooling
• development
• post-welding processes

NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
SCSabrin CORP	Pasadena	Machine Shops 332710	● ACTIVE	0.0 KM
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Meridian Rapid Defense Group LLC	Pasadena	All Other Miscellaneous Fabricated Metal Product Manufacturing 332999	● ACTIVE	5.1 KM
ILInventery, LLC	Pasadena	Precision Turned Product Manufacturing 332721	● ACTIVE	5.6 KM
Willmore INC	Pasadena	Machine Shops 332710	● ACTIVE	5.8 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.

• The company’s own websiteOPERATING
  first seen JUL 2026 · last seen SEP 2026
• SAM.gov entity registrationOPERATING
  Record TGKNMC3L9HK1 · first seen JUN 2026 · last seen JUN 2026
• DOL Form 5500 retirement plan filingsOPERATING
  Record 952831837|CA|91107|2858 e walnut st · first seen DEC 2024 · last seen DEC 2024
• SBA Paycheck Protection Program loan recordsEXISTENCE
  Record CA|pasadena|2858 e walnut st · first seen FEB 2021 · last seen FEB 2021

IN LOS ANGELES COUNTY333 other plants share this one’s industry (Other Fabricated Metal Product Manufacturing, NAICS 3329); 65 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: ADVANCED MATERIALS JOINING CORPORATION · JUN 2026

Street address

SAM.gov: 2858 E WALNUT ST · JUN 2026

City

SAM.gov: PASADENA · JUN 2026

State

SAM.gov: CA · JUN 2026

Coordinates

Census geocoder: 34.147988642861,-118.091420888233 · JUL 2026

Employees (band)

DOL: 20-99 · DEC 2024

Website

SAM.gov: http://www.at-co.com · JUN 2026

CAGE code

SAM.gov: 5K806 · JUN 2026

Retirement plan filing (Form 5500)

DOL: 56 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024

PPP loan

SBA PPP: PPP loan x1, approved 2021-02-02, 33 jobs reported · FEB 2021

SAM registration expires

SAM.gov: 2027-06-15 · JUN 2026