Manko Window Systems, INC.

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
Florence Corporation of Kansas	Manhattan	Sheet Metal Work Manufacturing 332322	● ACTIVE	11.8 KM
SLStraight Line Steel, INC.	Riley	Fabricated Structural Metal Manufacturing 332312	◐ LIKELY ACTIVE	20.9 KM

Every listed plant in Riley County

Also at this address

No other federal record shares this street address.

Where this record comes from

2 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 AIR, AIRS/AFS, KS-FP, NPDES, OSHA-OIS · EPA site type STATIONARY.

• DOL Form 5500 retirement plan filingsOPERATING
  Record 481070445|KS|66502|800 hayes dr · first seen AUG 2025 · last seen AUG 2025
• EPA Facility Registry ServiceEXISTENCE
  Record 110017375099 · first seen JAN 2015 · last seen JAN 2015

IN RILEY COUNTY4 other plants share this one’s industry (Architectural and Structural Metals Manufacturing, NAICS 3323); 1 of them has 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: MANKO WINDOW SYSTEMS, INC. · OCT 2026

Street address

EPA: 800 HAYES DRIVE · OCT 2026

City

EPA: MANHATTAN · OCT 2026

State

EPA: KS · OCT 2026

County (FIPS code)

EPA: 20161 · OCT 2026

Coordinates

EPA: 39.18705,-96.55505 · OCT 2026

Employees (band)

DOL: 100-499 · AUG 2025

Retirement plan filing (Form 5500)

DOL: 469 active participants, plan year ending 2025-08-31, 2 plan(s) · AUG 2025

State business registrationSOURCES DISAGREE

CO SOS: MANKO WINDOW SYSTEMS, INC., registered with the Colorado Secretary of State; Corporation formed in Kansas; registered 1996-07-24; active, annual report filed 2026-07-23 · JUL 2026

IA SOS: MANKO WINDOW SYSTEMS, INC., registered with the Iowa Secretary of State; registered 2014-09-03; active · SEP 2014