Companies based in Chicago

American airline

American private security guard and detective agency

Groupon, Inc. is an American e-commerce marketplace that connects subscribers with local merchants by offering activities, travel, goods, and services in 13 countries.

Hyatt Hotels Corporation, commonly known as Hyatt Hotels & Resorts, is an American multinational hospitality company headquartered in the Riverside Plaza area of Chicago that manages and franchises luxury and business hotels, resorts, and vacation properties. Hyatt Hotels & Resorts is one of the businesses managed by the Pritzker family. Hyatt has more than 1350 hotels and all-inclusive properties in 69 countries, across North America, South America, Europe, Asia, Africa and Australia.

financial and commodity derivative exchange located in Chicago, Illinois, United States

AbbVie Inc. is an American pharmaceutical company headquartered in North Chicago, Illinois. They have produced drugs to treat a wide range of medical issues.

world's oldest options and futures exchange, located in Chicago, Illinois, United States

American video game development company

business

American financial services firm

company

American advertising company

American record label

futures company and one of the largest options and futures exchanges, located in Chicago, Illinois, United States

Stock exchange located in Chicago, Illinois, United States

Amoco ( ) is a brand of fuel stations operating in the United States and owned by British conglomerate BP since 1998. The Amoco Corporation was an American chemical and oil company, founded by Standard Oil Company in 1889 around a refinery in Whiting, Indiana, and was officially the Standard Oil Company of Indiana until 1985. In 1911, it became an independent corporation as part of the break-up of the Standard Oil trust. Incorporated in Indiana, it was headquartered in Chicago.

Exelon Corporation is an American public utility headquartered in Chicago, and incorporated in Pennsylvania. Exelon is the largest electric parent company in the United States by revenue and is the largest regulated electric utility in the United States with approximately 10 million customers. The company is ranked 187th on the Fortune 500.

holding company

British-American publisher; publisher of Encyclopædia Britannica

US record label

NIQ (also known as NielsenIQ, formerly known as ACNielsen or AC Nielsen) is a global marketing research firm, with worldwide headquarters in Chicago, Illinois, United States. The company has approximately 30,000 employees and operates in more than 100 countries. NIQ acquired German market research firm GfK in 2023.

global management consulting firm

professional services and investment management company

American publishing company

Independent rock record label based in Chicago

American encyclopedia

independent record label in Chicago, Illinois, United States

American pay television channel

global advertising and marketing communications network, headquartered in New York City

former online archive

37signals (formerly Basecamp before reverting to its original name) is an American web software company based in Chicago, Illinois. The firm was cofounded in 1999 by Jason Fried, Carlos Segura, and Ernest Kim as a web design company.

footwear and foot care brand

retailer in the United States

American telecommunications company

American privately held global media and lifestyle company headquartered in Beverly Hills, California

American video game developer

American motion picture production company, 1910–1921

In the automotive industry, S.H. Arnolt Inc. of Chicago and Warsaw, Indiana, sold four different manufacturer's cars with Bertone bodies during the period 1953 to 1968.

American investment and advisory financial services firm

American printing and communications company

American architectural firm

GATX Corporation is a railcar lessor that owns fleets in North America, Europe, and Asia. In addition, jointly with Rolls-Royce Limited, it owns one of the largest aircraft spare engine lease portfolios. It is headquartered in Chicago, Illinois. As of December 31, 2020, the company owned 148,939 rail cars, including 83,959 tank cars, 64,980 freight cars, and 645 locomotives. Other major car types owned include covered hoppers, open-top hopper cars, and gondolas. It primarily serves the petroleum industry (29% of 2020 revenues), chemical industry (22% of 2020 revenues), food industry (11% of 20

video game developer

American independent record label based in Chicago

publicly traded restaurant chain

electric company in Illinois

type of typesetting machine

American hardware store

Hostway is a global web hosting and technology infrastructure company headquartered in Austin, Texas, United States. It provides hosting services to individuals, small to medium-sized businesses, and large corporations with web sites, databases, business applications, and managed web hosting. Hostway Services Inc. merged with Hosting.com in January 2019. The merged company rebranded to Ntirety in September 2019.

The Jellyvision Lab, Inc. is an American software company based in Chicago, Illinois. Founded in 1989, and as a video game development company by Harry Gottlieb in 1995, Jellyvision has since transitioned to creating benefits guidance software.

American record label

global advertising agency network

American private equity firm

american comic book publisher (1983-1991)

Bureau of Architecture

TransUnion is an American consumer credit reporting agency. TransUnion collects and aggregates information on over one billion individual consumers in over thirty countries including "200 million files profiling nearly every credit-active consumer in the United States". Its customers include over 65,000 businesses. Based in Chicago, Illinois, TransUnion's 2014 revenue was US$1.3 billion. It is the smallest of the three largest credit agencies, along with Experian and Equifax (known as the "Big Three").

FASA Corporation was an American publisher of role-playing games, wargames and board games between 1980 and 2001, after which they closed publishing operations for several years, becoming an IP holding company under the name FASA Inc. In 2012, a wholly owned subsidiary called FASA Games Inc. went into operation, using the name and logo under license from the parent company. FASA Games Inc. works alongside Ral Partha Europe, also a subsidiary of FASA Corporation, to bring out new editions of existing properties such as Earthdawn and Demonworld, and to develop new properties within the FASA cosm

American internet reviewer website and associated business entity

Cision Ltd. is a public relations and earned media software company and services provider. The company is incorporated in the Cayman Islands and headquartered in Chicago, Illinois. Cision offers a portfolio of services, including PRNewswire, PRWeb, Brandwatch, and Canada Newswire.

Jewel-Osco is a regional supermarket chain in the Chicago metropolitan area, headquartered in Itasca, a western suburb. In 2025, the company had 189 stores across northern, central, and western Illinois; eastern Iowa; and portions of northwest Indiana. Jewel-Osco has been a wholly owned subsidiary of Boise-based Albertsons since 1999. The company began as a door-to-door coffee delivery service before it expanded into delivering non-perishable groceries and later into grocery stores, and supermarkets. Prior to its 1984 acquisition by American Stores, Jewel evolved into a large multi-state holdi