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Emissions Systems INC

164 Sunnyside Ave, Crystal Lake, IL 60014

ACTIVELAST SEEN IN FEDERAL DATA AUG 2026 · 2 SOURCES

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

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Homepage of Emissions Systems INC
Their homepage, crawled JUL 2026

What they make

Analytical Laboratory Instrument Manufacturing334516

Emissions Systems Inc. manufactures portable gas emissions analyzers and engine performance tuning equipment, including models 8000, 5003, 5002, and 5001. The company produces emissions testing units that measure engine exhaust gas and provides emissions testing software that interfaces with third-party data acquisition systems for dyno testing, along with engine mapping and tuning services focused on CO gas and air-fuel ratio optimization. EMS serves performance tuning customers including Porsche North America, dyno manufacturers, and military equipment manufacturers.

SUMMARIZED FROM THE COMPANY’S OWN WEBSITE

Where it is

42.23844, -88.36305 · CENSUS TIGER
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Every listed plant in McHenry County

Also at this address

No other federal record shares this street address.

WHERE THIS RECORD COMES FROM — 2 FEDERAL SOURCES, 8 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 GOVOPERATINGNOV 2025NOV 2025
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
FIELDSOURCESIGNAL
ADDRESS LINE1SAM GOVNOV 2025
CAGE CODESAM GOVNOV 2025
CITYSAM GOVNOV 2025
GEOMCENSUS GEOCODERJUL 2026
NAMESAM GOVNOV 2025
REGISTRATION EXPIRATIONSAM GOVNOV 2025
STATESAM GOVNOV 2025
WEBSITESAM GOVNOV 2025

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

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