Explore jobs
Find specific jobs
Explore careers
Explore professions
Best companies
Explore companies
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 3.8
Werts Welding & Tank Service is the leading tank trailer parts distributor in the nation.
Zippia score 4.1
Zippia score 3.7
To learn throughout their lifetime.
Zippia score 4.4
Located in Houston, Texas, Phillips 66 manufactures energy products that are being used every day. They refine and market petroleum products, such as gasoline, diesel, jet fuel and lubricants; gather and process natural gas and natural gas liquids (NGL) for powering businesses, heating homes, cooking and electricity. Through financial strength and safe, reliable operations, Phillips 66 is delivering on a business strategy to enhance returns, grow the company, increase distributions to shareholders and build a high-performing team.
Zippia score 4.7
Schnuck Markets, Inc. have been serving customers a unique combination of quality food, variety and value for more than seven decades. Founded in north St. Louis in 1939, the family-owned grocery company has grown to include nearly 100 stores in five states: Missouri, Illinois, Indiana, Wisconsin and Iowa.
Zippia score 4.0
UTLX Company consists of three Marmon sectors - Rail Products & Services, Engineered Products, and Crane Services, as well as EXSIF Worldwide, the world's largest lessor of intermodal tank containers. Marmon Rail Products & Services includes Union Tank Car Company and Procor, full-service providers of railroad tank cars throughout North America, and other businesses primarily serving the transportation, energy, chemical, and related markets.
Zippia score 4.5
Ergon, Inc. is a privately owned company based in Jackson, Mississippi.
Zippia score 4.5
First Busey Corporation is a financial holding company headquartered in Champaign, Illinois.
Zippia score 4.0
Our Mission is to fulfill the financial needs of our communities with exceptional personal service, professionalism and integrity, and deliver meaningful value and results for customers and shareholders.
Zippia score 3.8
Scott Credit Union is a full-service financial institution providing financial services for individuals and businesses, including free checking accounts with interest, ATMs, credit and debit cards, new and used vehicle loans, mortgage loans, unsecured ...
Zippia score 4.2
Zippia score 4.1
Explorer operates a 1,830-mile common carrier pipeline that transports gasoline, diesel, fuel oil and jet fuel from the Gulf Coast to the Midwest. Through connections with other refined petroleum products pipelines, we serve more than 70 major cities in 16 states. On our system, which has a capacity of 660,000 barrels a day, it takes as few as 11 days to move a barrel of product from the Gulf Coast region to the Chicago area. With headquarters in Tulsa, Explorer is owned by subsidiaries of American Capital Strategies Ltd, Phillips66, Marathon, Sunoco Logistics and Shell. Explorer Pipeline began with a group of gentlemen from ten different oil companies coming together for a common goal. The competitors set aside their differences to find the best way to get their product to markets across the country. In the end, eight companies signed on as shareholders in a new pipeline that would span 1,400 miles with a capacity of 720,000 barrels a day. The founding companies were Apco Oil Company, Cities Service Company, Continental Oil Company, Gulf Oil Company, Phillips Petroleum Company, Shell Oil Company, Sun Oil Company and Texaco, Inc.
| Rank | Company | Zippia score |
|---|---|---|
| 1 | Werts Welding & Tank Service | |
| 2 | Millenium Rail Inc | |
| 3 | Lewis & Clark Jr High School |