# Multinational companies headquartered in Chicago

Tamtam tracks 366 multinational companies headquartered in Chicago. This list ranks the 30 largest by number of employees on LinkedIn, led by McDonald's, JLL and Hyatt. Their median headcount is 19,700. Half of them were founded in 1926 or later.

These Chicago-based multinational companies operate across diverse sectors including food and beverage, real estate, and hospitality. Among them are McDonald's, a global fast-food chain; JLL, a professional services firm specializing in real estate; Hyatt, managing luxury hotels and resorts; and Mondelēz International, manufacturing iconic snacks.

The data shows a strong presence of companies in the food and beverage manufacturing and services sectors, with several major players like Kraft Heinz and ADM having their headquarters here. This indicates a significant concentration of global food industry operations in Chicago.

🇺🇸 Chicago · 30 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [McDonald's](https://www.tamtam.ai/c/mcdonald-s) (corporate.mcdonalds.com)<br>global fast-food restaurant chain operating over 37,000 locations worldwide, serving popular menu items and employing 1.9 million people | Restaurants | 🇺🇸 Chicago | 261,219 |  |
| 2 | [JLL](https://www.tamtam.ai/c/jll) (jill.com)<br>A leading professional services firm specializing in real estate and investment management, creating rewarding opportunities and sustainable solutions using advanced technology | Real Estate | 🇺🇸 Chicago | 104,899 |  |
| 3 | [Hyatt](https://www.tamtam.ai/c/hyatt) (hyatt.com)<br>Global management of luxury hotels and all-inclusive resorts across six continents including vacation clubs, loyalty programs, destination management services, and travel technology solutions. | Hospitality | 🇺🇸 Chicago | 84,541 |  |
| 4 | [Mondelēz International](https://www.tamtam.ai/c/mondelez-international) (mondelezinternational.com)<br>Global multinational manufacturing and marketing iconic snacks, biscuits, chocolate, candy, and gum brands including Oreo and Cadbury to empower people to snack right. | Food and Beverage Manufacturing | 🇺🇸 Chicago | 79,000 | 2012 |
| 5 | [United Airlines](https://www.tamtam.ai/c/united-airlines) (united.com)<br>Leading airline with over 90,000 employees focused on customer service, sustainability, and teamwork, currently hiring 15,000 new team members in 2023 | Airlines and Aviation | 🇺🇸 Chicago | 75,520 | 1926 |
| 6 | [GE HealthCare](https://www.tamtam.ai/c/ge-healthcare) (gehealthcare.com)<br>Global medical technology and digital solutions innovator leveraging intelligent devices, data analytics, and artificial intelligence to drive precision health and improve patient outcomes worldwide | Hospitals and Health Care | 🇺🇸 Chicago | 60,041 | 1892 |
| 7 | [Cushman & Wakefield](https://www.tamtam.ai/c/cushman-and-wakefield) (cushmanwakefield.com)<br>Global commercial real estate services provider with 52,000 professionals focused on advancing client, colleague, and community outcomes worldwide. | Real Estate | 🇺🇸 Chicago | 53,000 | 1917 |
| 8 | [ADM](https://www.tamtam.ai/c/adm) (adm.com)<br>Global nutrition company transforming industries with plant-based solutions, sustainable practices, and cutting-edge innovations for a healthier, more environmentally friendly future | Food and Beverage Manufacturing | 🇺🇸 Chicago | 42,789 | 1902 |
| 9 | [RRD](https://www.tamtam.ai/c/rrd) (rrd.com)<br>Global provider of marketing, packaging, print, and supply chain solutions, focusing on elevating customer engagement with creative execution and environmental impact reduction | Marketing Services | 🇺🇸 Chicago | 41,201 |  |
| 10 | [Kraft Heinz](https://www.tamtam.ai/c/kraft-heinz) (kraftheinz.com)<br>Producer of high-quality food and beverage products including condiments, dairy, meals, beverages, and nutrition items marketed worldwide. | Food and Beverage Services | 🇺🇸 Chicago | 39,000 | 2015 |
| 11 | [Northern Trust](https://www.tamtam.ai/c/northern-trust) (northerntrust.com)<br>Global provider of innovative wealth management, asset servicing, and investment solutions for institutions, families, and individuals through diverse technology and financial expertise. | Financial Services | 🇺🇸 Chicago | 30,965 | 1889 |
| 12 | [NielsenIQ](https://www.tamtam.ai/c/nielseniq) (nielseniq.com)<br>A leading consumer intelligence company offering comprehensive consumer insights, advanced analytics, and global retail data to drive growth opportunities | Information Services | 🇺🇸 Chicago | 29,989 | 1923 |
| 13 | [HGS](https://www.tamtam.ai/c/hgs) (hgs.com)<br>A global leader in customer experience optimization, digital transformation, and business process management, combining automation, analytics, and AI to drive competitiveness | IT Services and IT Consulting | 🇺🇸 Chicago | 29,010 |  |
| 14 | [Motorola Solutions](https://www.tamtam.ai/c/motorola-solutions) (motorolasolutions.com)<br>The company builds and connects technologies to enhance public safety collaboration for safer communities, schools, hospitals, and businesses worldwide | Telecommunications | 🇺🇸 Chicago | 28,153 |  |
| 15 | [RSM US LLP](https://www.tamtam.ai/c/rsm-us-llp) (rsmus.com)<br>Provider of assurance, tax, and consulting services focused on middle market clients with a global presence and professional development culture. | Accounting | 🇺🇸 Chicago | 19,700 | 1926 |
| 16 | [University of Chicago](https://www.tamtam.ai/c/university-of-chicago) (uchicago.edu)<br>A prestigious academic institution encouraging scholars and students to think critically, explore various disciplines, and challenge conventional ideas for global enrichment | Higher Education | 🇺🇸 Chicago | 18,526 |  |
| 17 | [Hyatt Regency](https://www.tamtam.ai/c/hyatt-regency) (regency.hyatt.com)<br>Hyatt Regency hotels offer seamless connections for business and leisure travelers in over 30 countries, ensuring enthusiastic service and attention to detail | Hospitality | 🇺🇸 Chicago | 17,551 |  |
| 18 | [Motorola Mobility (a Lenovo Company)](https://www.tamtam.ai/c/motorola-mobility-a-lenovo-company) (motorola.com)<br>Innovative smartphones and accessories are created by a global team, fostering collaboration, creativity, and a commitment to consumer-centric mobile technology innovation | Computers and Electronics Manufacturing | 🇺🇸 Chicago | 17,456 | 1928 |
| 19 | [TransUnion](https://www.tamtam.ai/c/transunion) (transunion.com)<br>Global information and insights company enabling trust and confident transactions by providing actionable, data-driven pictures of individuals for businesses and consumers worldwide | IT Services and IT Consulting | 🇺🇸 Chicago | 17,036 |  |
| 20 | [HUB International](https://www.tamtam.ai/c/hub-international) (hubinternational.com)<br>Advises businesses and individuals on insurance, risk management, employee benefits, retirement, and wealth management with tailored solutions. | Insurance | 🇺🇸 Chicago | 16,129 |  |
| 21 | [Alight Solutions](https://www.tamtam.ai/c/alight-solutions) (alight.com)<br>Leading cloud-based human capital technology and services provider for global organizations, administering employee benefits and empowering workforce decisions and engagement. | Human Resources Services | 🇺🇸 Chicago | 15,000 | 1940 |
| 22 | [Thoughtworks](https://www.tamtam.ai/c/thoughtworks) (thoughtworks.com)<br>A global technology consultancy specializing in strategy, design, and engineering to drive digital innovation, fostering diverse talent and a strong cultivation culture | IT Services and IT Consulting | 🇺🇸 Chicago | 12,735 |  |
| 23 | [Molson Coors Beverage Company](https://www.tamtam.ai/c/molson-coors-beverage-company) (molsoncoors.com)<br>Global producer of beer, energy drinks, and canned cocktails including brands like Miller Lite and Blue Moon while promoting responsible alcohol consumption. | Food and Beverage Services | 🇺🇸 Chicago | 12,299 | 1786 |
| 24 | [Morningstar](https://www.tamtam.ai/c/morningstar) (morningstar.com)<br>Independent investment insights, data, and research for various global markets including managed products, private capital, debt securities, and comprehensive asset management services. | Financial Services | 🇺🇸 Chicago | 12,028 | 1984 |
| 25 | [Baker McKenzie](https://www.tamtam.ai/c/baker-mckenzie) (bakermckenzie.com)<br>Provide practical legal advice combining local knowledge and international expertise to help businesses succeed across global markets. | Law Practice | 🇺🇸 Chicago | 11,895 |  |
| 26 | [BMO U.S.](https://www.tamtam.ai/c/bmo-u-s) (bmo.com)<br>Providing personalized banking solutions through extensive branch network and dedicated team to support customers at every financial life stage. | Banking | 🇺🇸 Chicago | 11,608 |  |
| 27 | [Grant Thornton (US)](https://www.tamtam.ai/c/grant-thornton-us) (grantthornton.com)<br>Provides independent audit, tax, and advisory services through a global network, focusing on quality, trust, and strong client relationships. | Professional Services | 🇺🇸 Chicago | 11,518 | 1924 |
| 28 | [Baker Tilly US](https://www.tamtam.ai/c/baker-tilly-us) (bakertilly.com)<br>A leading advisory CPA firm with a coast-to-coast and global presence, part of Baker Tilly International network with 43,000 professionals | Accounting | 🇺🇸 Chicago | 10,594 |  |
| 29 | [Groupon](https://www.tamtam.ai/c/groupon) (job-boards.eu.greenhouse.io)<br>An experiences marketplace offering local deals, live events, and travel options, helping people discover new experiences while assisting businesses in growing | Software Development | 🇺🇸 Chicago | 10,452 | 2008 |
| 30 | [Crowe](https://www.tamtam.ai/c/crowe-chicago) (crowe.com)<br>A global firm providing public accounting, consulting, and technology services, helping clients make smart decisions and uncover hidden opportunities worldwide | Professional Services | 🇺🇸 Chicago | 9,411 |  |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.

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Source: https://www.tamtam.ai/l/multinational-companies-chicago