Johanson Dielectrics INC

• Layoff notice effective MAY 25, 2018 · 197 employees · filed MAR 20, 2018 · Layoff Permanent — recorded; a layoff does not change the status
• Layoff notice effective MAY 25, 2018 · 153 employees · filed JAN 9, 2019 · Layoff Permanent — recorded; a layoff does not change the status

Notices filed with the state under the federal WARN Act, as the state publishes them, collected by the WARN Act notices feed (CC BY 4.0). A notice records what the employer told the state; it is not by itself proof that the plant closed.

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
IPIsu Petasys CORP.	Sylmar	Bare Printed Circuit Board Manufacturing 334412	▲ REPORTED CLOSED	0.4 KM
Qpc Lasers, INC.	Rancho Cascades	Semiconductor and Related Device Manufacturing 334413	● ACTIVE	1.0 KM
Industrial Electronic Engineers, INC.	Sylmar	Other Electronic Component Manufacturing 334419	● ACTIVE	1.5 KM
JMJ & M Products, INC	San Fernando	Hardware Manufacturing 332510	● ACTIVE	2.2 KM
Spira Manufacturing Corporation	San Fernando	Other Electronic Component Manufacturing 334419	● ACTIVE	3.8 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

2 sources hold this plant, and 6 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 CARB-TCH, EIS · EPA site type STATIONARY.

• EPA Facility Registry ServiceEXISTENCE
  Record 110071777583 · first seen JUN 2017 · last seen AUG 2024
• State WARN plant-closing and layoff noticesEXISTENCE
  first seen MAY 2018 · last seen MAY 2018

IN LOS ANGELES COUNTY345 other plants share this one’s industry (Semiconductor and Other Electronic Component Manufacturing, NAICS 3344); 78 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: JOHANSON DIELECTRICS INC · OCT 2026

Street address

EPA: 15191 BLEDSOE ST · OCT 2026

City

EPA: SYLMAR · OCT 2026

State

EPA: CA · OCT 2026

County (FIPS code)

EPA: 06037 · OCT 2026

Coordinates

EPA: 34.30557,-118.46317 · OCT 2026