Brief History
In 1929, Mr. John J. Glenn founded J.J. Glenn Company in West Chicago, IL as a distributor of electrical components and supplies. Marian purchased J.J. Glenn in 1984. Since then, our Chicago facility 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. Marian Chicago maintains the flexibility of a small independent company, but also benefits from the support of other Marian divisions.
Expansion and Cleanroom Manufacturing
In 2013, Marian Chicago acquired an adjacent building and built a 40 linear foot connecting building that joined the two facilities. This effectively more than doubled their footprint, yet they quickly outgrew that space. So in 2020, the team acquired the 70,000 sq. ft. building on the other side. This increased the total square footage of their West Chicago operation to 120,000 sq. ft. Simultaneously, Marian Chicago converted 1,500 sq. ft. of production space into an ISO 7 certified cleanroom (class 100,000), where they are capable of producing medical parts and components under stringent controls. Manufacturing capabilities at Chicago include rotary die cutting, steel rule die cutting, matched metal die cutting, and assembly/manual packing.