Cunningham Manufacturing CO

What they make

• hydraulic cylinders
• air cylinders
• versions
• bore sizes

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

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
Machinists, INC.	Seattle	Machine Shops 332710	● ACTIVE	0.2 KM
MIMachinists INC	Seattle	Machine Shops 332710	◐ LIKELY ACTIVE	0.2 KM
Seattle Boiler Works INC	Seattle	Power Boiler and Heat Exchanger Manufacturing 332410	● ACTIVE	0.5 KM
WCWest Coast Wire Rope & Rigging, INC.	Seattle	Other Fabricated Wire Product Manufacturing 332618	◐ LIKELY ACTIVE	0.4 KM
Sound Propeller Services, INC.	Seattle	Machine Shops 332710	● ACTIVE	0.7 KM

Every listed plant in King County

Also at this address

No other federal record shares this street address.

Where this record comes from

3 sources hold this plant, and 9 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 NPDES, OSHA-OIS, RCRAINFO, WA-FSIS · EPA site type STATIONARY.

• The company’s own websiteOPERATING
  first seen JUL 2026 · last seen OCT 2026
• SAM.gov entity registrationOPERATING
  Record KEH4KKVGTL21 · first seen DEC 2025 · last seen DEC 2025
• EPA Facility Registry ServiceEXISTENCE
  Record 110005314221 · first seen JAN 2016 · last seen JAN 2016

ALSO RECORDED ASCUNNINGHAM MFG CO

IN KING COUNTY55 other plants share this one’s industry (Other Fabricated Metal Product Manufacturing, NAICS 3329); 13 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.

NameSOURCES DISAGREE

EPA: CUNNINGHAM MFG CO · JUL 2026

SAM.gov: CUNNINGHAM MANUFACTURING CO · DEC 2025 · ON THIS PAGE

Street address

EPA: 318 S WEBSTER ST · JUL 2026 · ON THIS PAGE

SAM.gov: 318 S WEBSTER ST · DEC 2025 · ON THIS PAGE

City

EPA: SEATTLE · JUL 2026 · ON THIS PAGE

SAM.gov: SEATTLE · DEC 2025 · ON THIS PAGE

State

EPA: WA · JUL 2026 · ON THIS PAGE

SAM.gov: WA · DEC 2025 · ON THIS PAGE

County (FIPS code)

EPA: 53033 · SEP 2026

CoordinatesSOURCES DISAGREE

Census geocoder: 47.535628547344,-122.329913350992 · JUL 2026 · ON THIS PAGE

EPA: 47.53556,-122.3295 · JUL 2026

Website

SAM.gov: www.cunninghamcylinders.com · DEC 2025

CAGE code

SAM.gov: 71777 · DEC 2025

SAM registration expires

SAM.gov: 2026-11-26 · DEC 2025