Grayhill INC

What they make

• rotary switches
• touch encoders
• joysticks
• keypads
• pushbuttons
• bus displays
• DIP switches
• I/O modules
• racks
• production
• controls
• healthcare

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

Products

Open positions

Openings read from Grayhill INC’s own job board on ApplicantPro, last checked OCT 24, 2026. FactoryRegistry does not host applications — each title opens the posting where the company published it.

• Assembler III
  Carpentersville, IL, USA · CVille Production · posted OCT 1, 2026
• Certified Process Mold Tech
  Iola, WI, USA · Iola - Production · posted AUG 31, 2026
• Assembler Trainee, Iola
  Iola, WI, USA · Iola - Production · posted MAR 17, 2026
• Production Technician II
  Iola, WI, USA · Iola - Production · posted FEB 16, 2026
• Tool and Die Mold Maker
  Carpentersville, IL, USA · CVille Production · posted JAN 14, 2026
• Tool and Die Mold Maker
  Iola, WI, USA · Iola - Production · posted MAY 19, 2025

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
GIGrayhill INC	La Grange	Printed Circuit Assembly (Electronic Assembly) Manufacturing 334418	◐ LIKELY ACTIVE	2.8 KM
KAKalmus & Assoc. INC	Broadview	Bare Printed Circuit Board Manufacturing 334412	◇ UNVERIFIED	5.1 KM
Filtration Group Corporation	Oak Brook	All Other Miscellaneous Textile Product Mills 314999	● ACTIVE	6.0 KM
MIMidtronics, INC	Willowbrook	Other Electronic Component Manufacturing 334419	◐ LIKELY ACTIVE	8.0 KM
MOMagnet-schultz of America INC	Westmont	Precision Turned Product Manufacturing 332721	◐ LIKELY ACTIVE	7.5 KM

Every listed plant in Cook County

Also at this address

No other federal record shares this street address.

Where this record comes from

6 sources hold this plant, and 14 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 ACES, AIR, AIRS/AFS, EIS, MN-TEMPO, RCRAINFO, TRIS · EPA site type STATIONARY.

• The company’s own websiteOPERATING
  first seen JUL 2026 · last seen OCT 2026
• SAM.gov entity registrationOPERATING
  Record EEJMMEN6C4K9 · first seen AUG 2025 · last seen AUG 2026
• DOL Form 5500 retirement plan filingsOPERATING
  Records 362345252|IL|60525|561 hillgrove ave, 362345252|IL|60525|561 w hillgrove ave · first seen DEC 2024 · last seen JUN 2025
• EPA Toxics Release InventoryOPERATING
  first seen DEC 2023 · last seen DEC 2024
• SBA Paycheck Protection Program loan recordsEXISTENCE
  Record IL|la grange|561 hillgrove ave · first seen APR 2020 · last seen APR 2020
• EPA Facility Registry ServiceEXISTENCE
  Record 110001819453 · first seen JUN 2017 · last seen JUN 2017

IN COOK COUNTY88 other plants share this one’s industry (Semiconductor and Other Electronic Component Manufacturing, NAICS 3344); 26 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: GRAYHILL INC · JUL 2026 · ON THIS PAGE

SAM.gov: GRAYHILL INC · AUG 2026 · ON THIS PAGE

Street address

EPA: 561 W HILLGROVE AVE · JUL 2026 · ON THIS PAGE

SAM.gov: 561 W HILLGROVE AVE · AUG 2026 · ON THIS PAGE

City

EPA: LA GRANGE · JUL 2026 · ON THIS PAGE

SAM.gov: LA GRANGE · AUG 2026 · ON THIS PAGE

State

EPA: IL · JUL 2026 · ON THIS PAGE

SAM.gov: IL · AUG 2026 · ON THIS PAGE

County (FIPS code)

EPA: 17031 · SEP 2026

CoordinatesSOURCES DISAGREE

Census geocoder: 41.814898620186,-87.876582238157 · JUL 2026 · ON THIS PAGE

EPA: 41.815061,-87.877653 · JUL 2026

Employees (band)

DOL: 500+ · DEC 2024

Website

SAM.gov: www.grayhill.com · AUG 2026

Year established

Company website: 1943 · AUG 2026

CAGE code

SAM.gov: 81073 · AUG 2026

Retirement plan filing (Form 5500)

DOL: 420 active participants, plan year ending 2025-06-30, 1 plan(s) · JUN 2025

PPP loan

SBA PPP: PPP loan x1, approved 2020-04-08, 500 jobs reported · APR 2020

SAM registration expires

SAM.gov: 2027-08-03 · AUG 2026

State business registration

TX Comptroller: GRAYHILL, INC., registered with the Texas Comptroller of Public Accounts; Corporation; active