Schwien Engineering, INC.

What they make

• digital microprocessor control
• computer interface
• calibration
• secondary standards
• flight instruments
• pressure transducers
• military aviation industry

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

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
Analytical Industries, INC.	Pomona	Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables 334513	● ACTIVE	0.1 KM
DCDelphi Control Systems INC	Pomona	Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables 334513	◐ LIKELY ACTIVE	0.2 KM
PCPerkin-elmer CORP Applied Sci	Pomona	Electroplating, Plating, Polishing, Anodizing, and Coloring 332813	◇ UNVERIFIED	0.6 KM
Alere San Diego, INC.	Pomona	In-Vitro Diagnostic Substance Manufacturing 325413	● ACTIVE	1.9 KM
Synergetic Technologies Group, INC	La Verne	All Other Miscellaneous Electrical Equipment and Component Manufacturing 335999	● ACTIVE	2.0 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

3 sources hold this plant, and 10 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 CA-ENVIROVIEW, NPDES, RCRAINFO · EPA site type STATIONARY.

• The company’s own websiteOPERATING
  first seen JUL 2026 · last seen OCT 2026
• SAM.gov entity registrationOPERATING
  Record QGBGQH6SJMJ5 · first seen APR 2026 · last seen APR 2026
• EPA Facility Registry ServiceEXISTENCE
  Record 110066116269 · first seen MAY 2019 · last seen MAY 2019

IN LOS ANGELES COUNTY338 other plants share this one’s industry (Navigational, Measuring, Electromedical, and Control Instruments Manufacturing, NAICS 3345); 74 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: SCHWIEN ENGINEERING INC · JUL 2026 · ON THIS PAGE

SAM.gov: SCHWIEN ENGINEERING, INC. · APR 2026 · ON THIS PAGE

Street address

EPA: 2882 METROPOLITAN PL · JUL 2026 · ON THIS PAGE

SAM.gov: 2882 METROPOLITAN PL · APR 2026 · ON THIS PAGE

City

EPA: POMONA · JUL 2026 · ON THIS PAGE

SAM.gov: POMONA · 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: 06037 · SEP 2026

Coordinates

EPA: 34.098196,-117.754092 · JUL 2026

Website

SAM.gov: http://www.schwien.com · APR 2026

Year established

Company website: 1958 · AUG 2026

CAGE code

SAM.gov: 31943 · APR 2026

SAM registration expires

SAM.gov: 2027-04-24 · APR 2026