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Rock Energy Systems LLC

4109 Capital Cir, Janesville, WI 53546

ACTIVELAST SEEN IN FEDERAL DATA AUG 2026 · 3 SOURCES

Operating signal within 12 months from two or more independent sources.

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Homepage of Rock Energy Systems LLC
Their homepage, crawled JUL 2026

What they make

Heating Equipment (except Warm Air Furnaces) Manufacturing333414

SunFire manufactures portable radiant heaters that run on diesel or kerosene fuel, available in three models producing 80,000 to 160,000 BTU. The heaters are designed for garages, workshops, auto shops, and construction sites. The company also produces Frigid Fix Diesel Anti-Gel and refurbished heaters, and manufactures its products in the USA.

SUMMARIZED FROM THE COMPANY’S OWN WEBSITE

Where it is

42.67252, -88.96287 · CENSUS TIGER
COUNTY
METRO AREA
ON GOOGLE MAPS
STREET VIEW

Other plants nearby

FacilityCityIndustryStatusDistance
Lanair Products LLCJanesvilleVentilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing
333412
UNVERIFIED0.0 KM
AireSafe InternationalJanesvilleIndustrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing
333413
LIKELY ACTIVE5.5 KM
Pregl Services INCJanesvilleIndustrial Process Furnace and Oven Manufacturing
333994
ACTIVE9.9 KM
Eclipse Combustion INCRockfordIndustrial Valve Manufacturing
332911
UNVERIFIED38.8 KM
Ge Aviation Systems LLCLoves ParkIndustrial Valve Manufacturing
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LIKELY ACTIVE39.8 KM

Every listed plant in Rock County

Also at this address

No other federal record shares this street address.

WHERE THIS RECORD COMES FROM — 3 FEDERAL SOURCES, 9 FIELDS

Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.

SourceEvidenceFirst seenLast seen
COMPANY SITEOPERATINGJUL 2026AUG 2026
SAM GOVOPERATINGJUL 2026JUL 2026
OSHA ITAOPERATINGDEC 2025DEC 2025
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
FIELDSOURCESIGNAL
ADDRESS LINE1SAM GOVJUL 2026
CAGE CODESAM GOVJUL 2026
CITYSAM GOVJUL 2026
EMPLOYEE BANDOSHA ITADEC 2025
GEOMCENSUS GEOCODERJUL 2026
NAMESAM GOVJUL 2026
REGISTRATION EXPIRATIONSAM GOVJUL 2026
STATESAM GOVJUL 2026
WEBSITESAM GOVJUL 2026

Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

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