Preview build of the new CML website — not yet live. Content is draft for Bob’s review.
Women-owned business (WBE) since 1988Antioch, IL (HQ) · Bolingbrook, IL · Fennville, MIServing the Chicago area, N. Illinois & SE Wisconsin
Where we work

Calibration Service Areas: Chicago Area, Lake County IL, SE Wisconsin & Michigan

Three locations — Antioch HQ, Bolingbrook and Fennville — and in-house calibration for instruments shipped from anywhere.

CML Enterprises is headquartered in Antioch, Illinois, in northern Lake County, right at the Illinois–Wisconsin state line. That puts our team close to the industrial corridor running from Lake County, Illinois north through Kenosha and Pleasant Prairie, Wisconsin. A large part of our customer base is in the Chicago area — served from Antioch on the north side and from our Bolingbrook, Illinois location in the southwest suburbs — and our Fennville, Michigan location connects us with West Michigan customers.

Field calibration has taken our technicians to wastewater treatment plants throughout Illinois, Indiana and Iowa. And because we offer full in-house calibration, instruments can be shipped to CML from anywhere for inspection, calibration and certification.

Antioch & Lake County, Illinois

Our home base. On-site and in-house calibration for plants, utilities and labs in Antioch, and across Lake County.

Antioch & Lake County calibration

Kenosha & Pleasant Prairie, Wisconsin

Just across the state line from our Antioch HQ. Field and shop calibration for southeast Wisconsin manufacturers.

Kenosha & Pleasant Prairie calibration

Chicago area & suburbs

Served from Antioch and our Bolingbrook location in the southwest suburbs. Our Chicago-area field calibration customers include the Metropolitan Water Reclamation District and Argonne National Laboratory.

Chicago-area calibration

West Michigan

Our Fennville, Michigan location. Contact us to discuss calibration, repair and product needs for Michigan facilities.

Contact CML

Our locations

Headquarters CML Enterprises Inc.595 Edelweiss Dr
Antioch, IL 60002
Lake County, Illinois — north of Chicago, on the Illinois–Wisconsin state line
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Chicago-area location CML Enterprises Inc.743 Dorchester Dr
Bolingbrook, IL 60440
Chicago area — southwest suburbs (Will / DuPage counties)
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Michigan location CML Enterprises Inc.6936 Windwood Lane
Fennville, MI 49408
West Michigan
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Not sure whether we can come to you? Tell us your plant city and ZIP in the quote form and we’ll confirm.

Need instruments calibrated?

Send your instrument list or call Bob. We’ll confirm scope, in-house vs. on-site, and next steps.