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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 4.3
ITSC is the largest terminal operator in North America and is the only operator with a transcontinental scale.
Zippia score 3.6
Carriage Greens Country Club in Darien, Illinois meets your wedding reception and banquet needs for a surprisingly low cost! From our beautiful golfer friendly 18 hole course to our top-notch food services and banquet rooms, have everything you need for an outing. Carriage Greens also have a full banquet facility, multiple wedding reception halls that providing you with the ultimate wedding reception experience.
Zippia score 4.0
We are dedicated to top-tier design that activates our clients mission, nurtures their culture, motivates success and enriches the human experience by making the communities they touch more vital, sustainable, safe and equitable.
Zippia score 3.8
To empower its clients to achieve their ambitions, today and tomorrow.
Zippia score 4.0
Founded in 1989, RQA, Inc. provides world class services to the food, beverage, personal care and consumer product industries.
Zippia score 4.3
To not only be a premier secured and non-secured card manufacturer but also to compliment our card production services with a robust direct mail.
Zippia score 3.6
We have experience with and passion for making ales and lagers of all kinds. We want to help further the craft renaissance in the Chicagoland area, and do our part to make the local community the best it can be.
Zippia score 3.4
Headquartered in Darien, IL, the American Academy of Sleep Medicine (AASM) is the only professional society dedicated exclusively to the medical subspecialty of sleep medicine. As the leading voice in the sleep field, the AASM sets standards and promotes excellence in health care, education and research. Established in 1975 as the Association of Sleep Disorders Centers, the AASM has a combined membership of 11,000 accredited member sleep centers and individual members, including physicians, scientists and other health care professionals. From insomnia to sleep apnea, the AASM considers sleep disorders an illness that has reached epidemic proportions. Board-certified sleep medicine physicians in an AASM-accredited sleep center provide effective treatment. AASM encourages patients to talk to their doctors about sleep problems or visit www.sleepeducation.com for a searchable directory of sleep centers.
Zippia score 4.8
Wilton knows a little cupcake but can go a long way and with accessible projects and recipes, you have boundless opportunities to bake your world happy. Innovative products. Mouthwatering inspiration. Having fun in the kitchen. This has been at the heart of what they do for nearly 90 years. As styles, trends and tastes change, they evolve to make sure they are bringing you the latest and most relevant products and ideas.
Zippia score 3.9
TGI Fridays is an American restaurant chain focusing on casual dining.
Zippia score 4.5
First Merchants Corporation is the largest financial holding company based in Central Indiana. This corporation has grown to include banks with more than 100 locations and a wealth management company since its organization in 1982. First Merchants remains true to their mission which is to deliver superior personalized financial solutions to consumer and closely held commercial clients in diverse community markets by providing sound advice and products that exceed customer expectations.
Zippia score 4.0
Any garment, men's or women's, dry cleaned for one low price. Guaranteed quality. Same-day service and free gourmet coffee, every day.
Zippia score 4.3
Aldi is the common brand of two German family-owned discount supermarket chains with over 10,000 stores in 20 countries and an estimated combined turnover of more than €50 billion.
Zippia score 4.1
A cutting-edge, scalable solution to Americans' increasing demand for local and sustainable food, BrightFarms is pioneering the future of local, low-impact farming. We build, own, and operate local greenhouse farms that create permanent green-collar jobs and deliver fresh, great-tasting produce to homes across the country. BrightFarms' growing methods - a model for the future of scalable, sustainable local farming - use far less energy, land, and water than conventional agriculture. Fast Company recognizes BrightFarms as “One of the World's 50 Most Innovative Companies” and one of the “Top 10 Most Innovative Companies in Food” in the world.
Zippia score 3.6
Since 1962, our natural health food stores have proudly provided Chicago with premium-quality products and friendly service. Dedicated to offering affordable natural and organic products, we carry over 20,000 items that support a natural and healthy li...
Zippia score 3.6
We run hot and cold. Call us when it's warm and we'll cool you off. Call us when your cold and we'll warm you up. Furnace and A/C sales, service, installation and repair. A+ rating by BBB.
Zippia score 3.6
Bernie's Book Bank is a children's book bank that collects, processes, and distributes new and gently used children's books to significantly increase book ownership among at-risk infants, toddlers, and school-age children throughout Chicagoland.
| Rank | Company | Zippia score |
|---|---|---|
| 1 | ITS ConGlobal | |
| 2 | Carriage Greens Country Club | |
| 3 | Wight & Company | |
| 4 | Rotadyne | |
| 5 | RQA | |
| 6 | mctechnology | |
| 7 | Miskatonic Brewing | |
| 8 | American Academy of Sleep Medicine |