Rki Instruments, INC.

What they make

• RKI Gas Detectors
• portable gas detectors
• fixed systems detection
• sensors
• semiconductor
• SCADA
• chemical
• construction
• utilities
• marine approvals
• training
• technical support

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

Products

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
Sepragen CORP	Union City	Analytical Laboratory Instrument Manufacturing 334516	● ACTIVE	0.6 KM
Accelerad Technologies, INC.	Hayward	Irradiation Apparatus Manufacturing 334517	● ACTIVE	2.2 KM
Mission Robotics INC.	Union City	Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511	● ACTIVE	2.9 KM
Divimath, INC.	Fremont	Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 334220	● ACTIVE	3.8 KM
Brechtel Manufacturing, INC	Hayward	Analytical Laboratory Instrument Manufacturing 334516	● ACTIVE	3.3 KM

Every listed plant in Alameda County

Also at this address

No other federal record shares this street address.

Where this record comes from

4 sources hold this plant, and 12 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-CERS, CA-ENVIROVIEW, RCRAINFO · EPA site type STATIONARY.

• The company’s own websiteOPERATING
  first seen JUL 2026 · last seen OCT 2026
• SAM.gov entity registrationOPERATING
  Record P7N7CLMG7PL1 · first seen APR 2026 · last seen APR 2026
• DOL Form 5500 retirement plan filingsOPERATING
  Record 943207984|CA|94587|33248 central ave · first seen DEC 2024 · last seen DEC 2024
• EPA Facility Registry ServiceEXISTENCE
  Record 110055762483 · first seen OCT 2015 · last seen OCT 2015

IN ALAMEDA COUNTY194 other plants share this one’s industry (Navigational, Measuring, Electromedical, and Control Instruments Manufacturing, NAICS 3345); 40 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: RKI INSTRUMENTS INC · JUL 2026 · ON THIS PAGE

SAM.gov: RKI INSTRUMENTS, INC. · APR 2026 · ON THIS PAGE

Street address

EPA: 33248 CENTRAL AVE. · JUL 2026 · ON THIS PAGE

SAM.gov: 33248 CENTRAL AVE · APR 2026 · ON THIS PAGE

City

EPA: UNION CITY · JUL 2026 · ON THIS PAGE

SAM.gov: UNION CITY · APR 2026 · ON THIS PAGE

State

EPA: CA · JUL 2026 · ON THIS PAGE

SAM.gov: CA · APR 2026 · ON THIS PAGE

Coordinates

EPA: 37.59913,-122.037937 · JUL 2026

Employees (band)

DOL: 20-99 · DEC 2024

Website

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

Year established

Company website: 1994 · AUG 2026

CAGE code

SAM.gov: 04VL7 · APR 2026

Retirement plan filing (Form 5500)

DOL: 92 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024

SAM registration expires

SAM.gov: 2027-04-21 · APR 2026

State business registration

TX Comptroller: RKI INSTRUMENTS INC, registered with the Texas Comptroller of Public Accounts; Corporation; active