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Lesman Instrument Company serves the instrumentation specialty product needs of industrial customers in the Greater Midwest region, with offices in Chicagoland and the Greater Milwaukee area, plus salespeople in the Greater St Louis, Indianapolis, Greater Peoria IL, and Green Bay WI areas.

Lesman Corporate and Illinois Sales Office

135 Bernice Dr, Bensenville, IL 60106-3366
Call Toll Free: 800-953-7626
Fax Us at: 630-595-2386
Send E-mail to:

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Our Wisconsin Sales Office

5160 N 125th St, Butler, WI 53007-1332
Call Toll Free: 800-837-1700
Fax Us at: 262-923-1797
Send E-mail to:

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Remittance Address for All Lesman Orders: PO Box 7640, Carol Stream IL 60197-7640
If you have 2226 Paysphere Circle in Chicago as our address, please update it immediately.