396 Wegner Drive
West Chicago, IL 60185
t 630 293 7800
f 630 293 5897
Mr. John J. Glenn founded J.J. Glenn Company in 1929 as a distributor of electrical components and supplies. Marian purchased J.J. Glenn in 1984. Since then, Marian Chicago has evolved from a distributor of the electrical supply industry to a fabricator of flexible component parts and one of the largest distributors of Silicone RTV’s. With a 50,000 square foot facility, Marian Chicago maintains the flexibility of a small independent company, but also benefits from the support of other Marian divisions.
Cleanroom Manufacturing – In 2020, Marian Chicago added a 1,500 SF certified ISO 7 certified cleanroom (class 100,000) to its operations in West Chicago, IL. Manufacturing capabilities in the ISO class 7 cleanroom include rotary die cutting, steel rule die cutting, matched metal die cutting, and assembly/manual packing.