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

Zippia score 3.9
Manufacturer of railcar components for railroads, leasing companies, railcar builders, railcar repair shops and owners of railcars.
Zippia score 3.8
We deliver the finest chrome plated bars, induction hardened chrome plated bars and OD chrome plated tubing to our customers.
Zippia score 3.5
Richardson RFPD is a global leader in the RF and wireless communications, IoT and Power markets. Relationships with the industry's top component suppliers enable Richardson RFPD to meet the total engineering needs of each customer. Whether it's designing components or engineering complete solutions, their worldwide design centers and technical sales team provide support for all aspects of customers' go-to-market strategy, from prototype to production.
Zippia score 3.4
Zippia score 4.8
Hearthside is the food industry's largest contract manufacturer, and largest private bakery. 20 facilities produce high quality consumer baked foods, snacks and packaging services. We provide customers with a combination of quality, scale, dependability and product integrity that is unequaled in the modern contract manufacturing chain. Primary product categories include bars, cookies, crackers, components, and other baked foods and snacks. Hearthside is also one of the industry's largest contract packagers of food products. Today Hearthside operates 24 production facilities, including three in Europe, and is a volume leader in multiple product categories. Hearthside was founded in 2009 on the belief that food contract manufacturing was ripe for innovation and reinvention. Founder Rich Scalise believed that a company combining the speed, flexibility, and innovative drive of a startup with the scale, depth quality, and capacity of a world-class manufacturer would create new value for customers. The result is Hearthside, a highly flexible world-class contract manufacturer, and one of the fastest growing companies in the food industry. On the surface, a contract manufacturer may not stand out. They even may look alike. Take a closer look however and there are big differences. Add them up and they can create sustained competitive advantage for Hearthside's premier food customers. Our investments and commitments to quality, safety, speed, innovation, and value set new standards of industry performance. For our customers, this translates into value propositions that include Quality, Speed-to-Market, Innovation, and Flexibility.
Zippia score 4.7
Greencore USA is a leader in frozen contract packaging and a top producer of refrigerated, fresh-made sandwiches, entrees, and salad kits.
Zippia score 4.5
Since OSI opened its first family meat market in Chicago in 1909, one thing has remained steadfast: their unwavering dedication to their customers' success. That is why many of the world's leading brands regard us as their premier global food provider. They trust OSI to consistently deliver leading-edge food solutions for their most exacting product development and processing needs. Solutions that deliver quality, value, and streamline processes while optimizing costs.
Zippia score 4.4
Columbia Forest Products is North America's largest manufacturer of quality, decorative hardwood plywood and veneers for homes & commercial settings.
Zippia score 3.8
Walter E. Smithe is a furniture company based in Itasca, Illinois.
Zippia score 3.7
Guerrilla RF is a fabless semiconductor company providing high performance, differentiated products. With a strong background in Wi-Fi discrete MMIC's, the Wi-Fi Access Point market is the initial target market for their products. They design and sell the absolute best in class high-performance RF and Microwave IC's, enabling new levels of performance, range, and coverage in wireless systems. Through patented technology and deep domain expertise, Guerrilla RF addresses the ignored and unmet performance and functionality you need. Guerrilla RF was founded in 2013 and is headquartered in Greensboro, North Carolina, United States.
Zippia score 3.7
The Wand wine filters effectively remove the agents in wine known to cause side effects, such as headaches and allergic reactions.
| Rank | Company | Zippia score |
|---|---|---|
| 1 | Miner Enterprises | |
| 2 | Industrial Hard Chrome | |
| 3 | Richardson RFPD | |
| 4 | Continental Envelope |