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We figured out the best biggest companies to work for in Illinois using data on salaries, company financial health, and employee diversity. You can also search for the best biggest companies to work for in any other state or city.

Zippia score 4.5
MAT Holdings, Inc., through its subsidiaries, manufactures and distributes products in automotive, hardware, and power equipment sectors worldwide. It provides fencing and lawn, and garden products, such as chain link fencing, residential and agricultural fencing, and lawn and garden accessories; and pet products, including chain link kennels, wire kennels, pet beds, pet gates, cat trees, and litter boxes. The company also offers compressors and air tools, such as air compressors, pneumatic air tools, and air tool accessories; outdoor power equipment, including leaf maintenance products, lawn care products, and soil preparation products; fog and driving, vehicle and trailer, and warning and towing lights; auto appearance products, including washing, drying, polishing, and detailing products; and OEM and aftermarket automotive braking components. In addition, it provides distribution and logistics services to manufacturers selling through the United States retail channels. The company was founded in 1984 and is based in Long Grove, Illinois. It has manufacturing, distribution, and sourcing facilities in Asia, Europe, and the United States.
Zippia score 3.7
TZA focuses on helping clients improve their financial performance by increasing workforce productivity through best of breed labor management technology and services.
Zippia score 3.6
Bentley's Corner Barkery opened its doors in 2008 with a mission to feed animal lovers' pets genuine real meat products made in the USA. Their dedication to customers' animals is why they hand pick and research every item stocked on their shelves, allowing customers to be at ease when making a purchase at any their retail stores throughout the Chicagoland area. Started from a single retail store seven years ago, Bentley's Corner Barkery grew to encompass seven locations offering natural pet food, a variety of treats, toys and more! In November 2015, Bentley's Corner Barkery acquired Pet Stuff and the newly formed company, Bentley's Pet Stuff, now features 15 locations across Chicagoland.
Zippia score 4.0
Hollinee, L.L.C. engages in the manufacture, research and development, engineering, and marketing of glass fiber products. The company offers glass filtration products for various applications, such as air and railroad filtration, paint overspray and collection, and roof ventilation. Hollinee, L.L.C. also offers glass fiber FRP reinforcements and surfacing mats for various application, including resin transfer molding, liquid compression molding, structural reaction injection molding, filament winding, continuous lamination, and pultrusion applications. In addition, the company offers binder systems. Hollinee, L.L.C. serves glass fiber reinforcement and surfacing composites, HVAC, and overspray filtration markets. The company offers its products through a network of distributors. Hollinee, L.L.C. operates glass fiber manufacturing facilities in Kentucky, Ohio, and West Virginia. The company was founded in 1972 and is based in Long Grove, Illinois. As of September 1, 2006, Hollinee, L.L.C. operates as a subsidiary of Superior Fibers, LLC.
Zippia score 3.6
Welcome to the Twin Orchard Country Club
Zippia score 3.1
Within Reach is primarily engaged in performing commercial business, marketing, opinion, and other economic, sociological, and educational research on a contract or fee basis.
| Rank | Company | Zippia score |
|---|---|---|
| 1 | MAT Holdings | |
| 2 | TZA | |
| 3 | Bentley's Pet Stuff | |
| 4 | Hollinee, L.L.C. | |
| 5 | Twin Orchard Country Club | |
| 6 | Within Reach |