Facility	City	Industry	Status	Distance
AireSafe International	Janesville	Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing 333413	LIKELY ACTIVE	5.5 KM
Pregl Services INC	Janesville	Industrial Process Furnace and Oven Manufacturing 333994	ACTIVE	9.9 KM
Eclipse Combustion INC	Rockford	Industrial Valve Manufacturing 332911	UNVERIFIED	38.8 KM
Ge Aviation Systems LLC	Loves Park	Industrial Valve Manufacturing 332911	LIKELY ACTIVE	39.8 KM
Geneva Scientific, LLC	Williams Bay	Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing 333415	ACTIVE	36.1 KM

Every listed plant in Rock County

Also at this address

No other federal record shares this street address.

Where this record comes from

4 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.

The company’s own websiteOPERATING
first seen JUL 2026 · last seen OCT 2026
SAM.gov entity registrationOPERATING
Record N1R8EGQHYKF7 · first seen JUN 2026 · last seen JUL 2026
OSHA injury and illness reportsOPERATING
Record 859935 · first seen DEC 2025 · last seen DEC 2025
SBA Paycheck Protection Program loan recordsEXISTENCE
Record WI|janesville|4109 capital cir · first seen APR 2020 · last seen APR 2020

IN ROCK COUNTY2 other plants share this one’s industry (Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing, NAICS 3334); 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: SAM.gov: ROCK ENERGY SYSTEMS LLC · JUN 2026
Street address: SAM.gov: 4109 CAPITAL CIR · JUN 2026
City: SAM.gov: JANESVILLE · JUN 2026
State: SAM.gov: WI · JUN 2026
Coordinates: Census geocoder: 42.672524656395,-88.96286932373 · JUL 2026
Employees (band): OSHA: 100-499 · DEC 2025
Website: SAM.gov: https://sunfireheaters.com/ · JUN 2026
CAGE code: SAM.gov: 21RZ0 · JUN 2026
PPP loan: SBA PPP: PPP loan x1, approved 2020-04-06, 43 jobs reported · APR 2020
SAM registration expires: SAM.gov: 2027-06-16 · JUN 2026

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