| # | Company | Employees |
|---|---|---|
| 1 |
McDonald'scorporate.mcdonalds.com
global fast-food restaurant chain operating over 37,000 locations worldwide, serving popular menu items and employing 1.9 million people |
261,219 |
| 2 |
Walgreens Boots Alliancewalgreens.com
Integrated healthcare and retail company operating thousands of pharmacy locations, providing medicines, health services, beauty products, and digital convenience globally. |
141,576 |
| 3 |
Abbottabbott.com
A global healthcare leader offering life-changing technologies in diagnostics, medical devices, nutrition, and generic medicines, with over 115,000 colleagues serving in 160+ countries |
140,778 |
| 4 | 104,899 | |
| 5 |
Walgreenswalgreens.com
A leading retail pharmacy offering health and beauty products, with a focus on providing pharmacy services and a seamless omnichannel experience for customers |
90,723 |
| 6 | 84,541 | |
| 7 |
Mondelฤz Internationalmondelezinternational.com
Global multinational manufacturing and marketing iconic snacks, biscuits, chocolate, candy, and gum brands including Oreo and Cadbury to empower people to snack right. |
79,000 |
| 8 |
United Airlinesunited.com
Leading airline with over 90,000 employees focused on customer service, sustainability, and teamwork, currently hiring 15,000 new team members in 2023 |
75,520 |
| 9 |
AbbVieabbvie.com
Global biopharmaceutical company focused on creating impactful medicines for complex health issues in immunology, oncology, neuroscience, eye care, aesthetics, and other unmet needs |
61,015 |
| 10 |
GE HealthCaregehealthcare.com
Global medical technology and digital solutions innovator leveraging intelligent devices, data analytics, and artificial intelligence to drive precision health and improve patient outcomes worldwide |
60,041 |
| 11 |
John Deeredeere.com
A global leader in cutting-edge products and technology for agriculture and construction, pushing boundaries for productivity and sustainability worldwide |
55,618 |
| 12 |
Allstateallstate.com
This company advocates for peace of mind, builds diverse teams, develops careers, and empowers people and communities through innovation and advocacy |
55,012 |
| 13 |
Cushman & Wakefieldcushmanwakefield.com
Global commercial real estate services provider with 52,000 professionals focused on advancing client, colleague, and community outcomes worldwide. |
53,000 |
| 14 |
Gallaghergallagher.com
Global insurance brokerage offering risk management, consulting, employee benefits, claims management, and retirement services to protect assets and support clients. |
52,767 |
| 15 |
CommonSpirit Healthcommonspirit.careers
Building a healthier future for all through integrated health services, delivering patient encounters via clinics, care sites, hospitals, home-based services, and virtual care. |
48,074 |
| 16 |
YMCA of the USAymca.org
National resource office supporting independent YMCAs across the US by providing leadership, guidance, and resources to strengthen communities and promote youth development, health, and well-being |
46,444 |
| 17 | 42,789 | |
| 18 | 41,201 | |
| 19 |
Ulta Beautyulta.com
National retailer offering cosmetics, fragrance, skincare, and hair products from five hundred brands plus in-store salon services including hair, skin, and makeup. |
40,136 |
| 20 |
Baxter International Inc.baxter.com
Development and delivery of innovative medical technologies and solutions to support clinicians and improve patient health worldwide. |
39,170 |
| 21 |
Kraft Heinzkraftheinz.com
Producer of high-quality food and beverage products including condiments, dairy, meals, beverages, and nutrition items marketed worldwide. |
39,000 |
| 22 |
Chicago Public Schoolscps.edu
Provides education to over 340,000 students across more than 600 schools, focusing on college, career, and life readiness. |
38,314 |
| 23 |
Northern Trustnortherntrust.com
Global provider of innovative wealth management, asset servicing, and investment solutions for institutions, families, and individuals through diverse technology and financial expertise. |
30,965 |
| 24 |
NielsenIQnielseniq.com
A leading consumer intelligence company offering comprehensive consumer insights, advanced analytics, and global retail data to drive growth opportunities |
29,989 |
| 25 | 29,010 | |
| 26 |
Motorola Solutionsmotorolasolutions.com
The company builds and connects technologies to enhance public safety collaboration for safer communities, schools, hospitals, and businesses worldwide |
28,153 |
| 27 |
The Y (YMCA)ymca.org
We empower individuals regardless of age, income, or background to reach their full potential, improve well-being, and inspire action in communities |
27,727 |
| 28 | 27,213 | |
| 29 |
US Foodsusfoods.com
Leading foodservice distributor partnering with restaurants & operators to provide innovative food offerings, e-commerce solutions, & technology to help businesses succeed |
24,825 |
| 30 |
ALDI USAcareers.aldi.us
A leading grocer offering quality products at low prices, known for industry-leading wages, benefits, and recognition as a top employer |
24,796 |
| 31 |
University of Illinois Urbana-Champaignillinois.edu
Leading public university with strong focus on education, research, global student opportunities, faculty innovation, and significant economic and community impact. |
24,692 |
| 32 | 22,635 | |
| 33 |
Discover Financial Servicesdiscover.com
Provider of lending products and payment services enabling merchants, fintech companies, and consumers to access financial solutions and global card acceptance. |
21,937 |
| 34 | 21,907 | |
| 35 | 21,618 | |
| 36 |
Health Care Service Corporationhcsc.com
Provides health coverage for employers, individuals, and families, including Medicare and Medicaid plans, plus related health care products and services. |
21,090 |
| 37 |
Exelonexeloncorp.com
A leading utility company providing reliable and affordable energy to over 10 million customers in urban areas across multiple states, with a commitment to sustainability and community support |
20,291 |
| 38 |
RSM US LLPrsmus.com
Provider of assurance, tax, and consulting services focused on middle market clients with a global presence and professional development culture. |
19,700 |
| 39 |
Ace Hardware Corporationacehardware.com
A global hardware retail cooperative with 5,500 stores in 70 countries, offering distribution services and emphasizing community engagement |
18,988 |
| 40 |
Medlinemedline.com
Provides medical-surgical products and supply chain solutions to healthcare providers globally, improving their clinical, financial, and operational outcomes. |
18,809 |
| 41 | 18,732 | |
| 42 |
ITWcareers.itw.com
Global multi-industrial manufacturing leader driving solid growth with innovative solutions, emphasizing decentralized culture |
18,709 |
| 43 |
University of Chicagouchicago.edu
A prestigious academic institution encouraging scholars and students to think critically, explore various disciplines, and challenge conventional ideas for global enrichment |
18,526 |
| 44 |
University of Illinois Chicagouic.edu
A large university in Chicago with 33,000 students, 12,000 employees, 16 colleges, and a public medical center |
17,943 |
| 45 |
Hyatt Regencyregency.hyatt.com
Hyatt Regency hotels offer seamless connections for business and leisure travelers in over 30 countries, ensuring enthusiastic service and attention to detail |
17,551 |
| 46 |
Motorola Mobility (a Lenovo Company)motorola.com
Innovative smartphones and accessories are created by a global team, fostering collaboration, creativity, and a commitment to consumer-centric mobile technology innovation |
17,456 |
| 47 |
TransUniontransunion.com
Global information and insights company enabling trust and confident transactions by providing actionable, data-driven pictures of individuals for businesses and consumers worldwide |
17,036 |
| 48 |
Northwestern Universitynorthwestern.edu
Premier research university offering innovative teaching, pioneering research, and diverse, collaborative environments across multiple campuses near Chicago and Qatar. |
16,997 |
| 49 |
Endeavor Healthendeavorhealth.org
Endeavor Health is a healthcare system in Illinois, uniting multiple hospitals to provide personalized patient experiences and world-class care |
16,454 |
| 50 |
Northwestern Medicinenm.org
Academic medical center combining research, teaching, and patient care with a large workforce across numerous regional locations and top-ranked hospitals. |
16,181 |
| 51 |
HUB Internationalhubinternational.com
Advises businesses and individuals on insurance, risk management, employee benefits, retirement, and wealth management with tailored solutions. |
16,129 |
| 52 | 14,810 | |
| 53 |
UL Solutionsul.com
Global provider of safety testing, certification, inspection, auditing, and advisory services ensuring product security, sustainability, and market trust. |
14,487 |
| 54 |
Nalco Water, An Ecolab Companyecolab.com
A global leader in water and process management solutions, leveraging connected chemistry and digital innovation to optimize sustainability and business outcomes |
12,751 |
| 55 |
Thoughtworksthoughtworks.com
A global technology consultancy specializing in strategy, design, and engineering to drive digital innovation, fostering diverse talent and a strong cultivation culture |
12,735 |
| 56 |
Rush University Medical Centerrush.edu
Academic medical center with hospital, health center, university offering medical, nursing education, research, residency programs, and community outreach services. |
12,484 |
| 57 |
OSF HealthCareosfhealthcare.org
Integrated health system with hospitals, home care, nursing colleges, digital health services, philanthropic foundation, and healthcare innovation investments. |
12,433 |
| 58 |
Molson Coors Beverage Companymolsoncoors.com
Global producer of beer, energy drinks, and canned cocktails including brands like Miller Lite and Blue Moon while promoting responsible alcohol consumption. |
12,299 |
| 59 |
Morningstarmorningstar.com
Independent investment insights, data, and research for various global markets including managed products, private capital, debt securities, and comprehensive asset management services. |
12,028 |
| 60 |
Levy Restaurantslevyrestaurants.com
Providing exceptional dining experiences with passionate hospitality across restaurants, stadiums, hotels, and special events worldwide, emphasizing personal pride and quality. |
11,972 |
| 61 |
State Farm Agentsfbecomeanagent.com
Company dedicated to helping people manage risks, recover from unexpected events, and achieve their dreams through a network of trusted agents |
11,949 |
| 62 |
Baker McKenziebakermckenzie.com
Provide practical legal advice combining local knowledge and international expertise to help businesses succeed across global markets. |
11,895 |
| 63 |
Hospital Sisters Health Systemhshs.org
Multi-institutional health system providing integrated, patient-centered care through hospitals, clinics, and physician partners in Illinois and Wisconsin. |
11,854 |
| 64 |
Zebra Technologieszebra.com
Improving workflows through innovative technology solutions, connecting frontline workers and optimizing visibility with scanning, track-and-trace, and automation tools |
11,698 |
| 65 |
Advocate Health Careadvocatehealth.com
Integrated nonprofit health system providing clinical innovation, specialized care, extensive research, education, and community benefits across multiple U.S. states. |
11,676 |
| 66 | 11,608 | |
| 67 |
Grant Thornton (US)grantthornton.com
Provides independent audit, tax, and advisory services through a global network, focusing on quality, trust, and strong client relationships. |
11,518 |
| 68 |
Bankers Lifecareersatbankerslife.com
The company provides insurance and investment solutions for middle-income Americans near or in retirement, with a focus on health and financial security |
11,377 |
| 69 |
Jewel-Oscojewelosco.com
A customer-focused grocery store chain in Chicagoland area, providing quality products, friendly service, and great value since 1899 Operating 188 stores |
11,264 |
| 70 | 11,182 | |
| 71 |
Encoreencoreglobal.com
Global leader in event technology and production services, specializing in creating engaging experiences for hybrid, virtual, and in-person events worldwide Operating in 17+ countries |
10,625 |
| 72 |
Baker Tilly USbakertilly.com
A leading advisory CPA firm with a coast-to-coast and global presence, part of Baker Tilly International network with 43,000 professionals |
10,594 |
| 73 |
Grouponjob-boards.eu.greenhouse.io
An experiences marketplace offering local deals, live events, and travel options, helping people discover new experiences while assisting businesses in growing |
10,452 |
| 74 |
Help at Homehelpathome.com
Providing person-centered home care services for seniors and individuals with disabilities, creating meaningful moments and driving high-quality outcomes in multiple states |
10,421 |
| 75 |
Internationalinternational.com
Manufacture durable trucks, engines, and buses with aftermarket parts, focusing on uptime, productivity, and sustainable mobility solutions. |
10,420 |
| 76 |
Claire'sclaires.com
Retail and wholesale provider of fashion accessories and jewelry, inspiring self-expression and unique style across North America and internationally. |
9,895 |
| 77 |
Sears Storessears.com
Integrated retailer offering home merchandise, apparel, automotive products, and extensive home services through physical and digital retail formats. |
9,765 |
| 78 |
Aspen Dentalcareers.aspendental.com
Provides dental care and supports healthcare brands through a parent company, aiming for broader access and improved patient well-being nationwide. |
9,615 |
| 79 | 9,411 | |
| 80 |
Brunswick Corporationbrunswick.com
Global leader in marine recreation offering propulsion systems, boats, marine technology, parts, accessories, and related services worldwide. |
9,409 |
| 81 |
Zurich North Americazurichna.com
Provider of insurance solutions and services to businesses and individuals across various industries, including Fortune 500 companies. |
9,359 |
| 82 |
Komatsu North Americakomatsu.com
This company specializes in providing technologies, equipment, and services for construction, mining, forklift, industrial, and forestry markets worldwide to enhance safety and promote productivity |
9,252 |
| 83 |
Pampered Chefpamperedchef.com
Development and sales of unique, high-quality kitchen tools, cookware, and pantry products through independent consultants and ecommerce. |
9,039 |
| 84 |
Rotary Internationalrotary.org
Global network of leaders and volunteers uniting to create lasting positive change in communities worldwide through service and engagement. |
8,787 |
| 85 |
Kirkland & Elliskirkland.com
Providing top-tier legal services in corporate transactions, litigation, investigations, and asset management with global reach and innovative approach. |
8,683 |
| 86 |
YASH Technologiesyash.com
Consulting-led digital transformation partner offering technology, advisory, and outsourcing services to optimize client performance and revenue growth globally. |
8,670 |
| 87 |
LKQ Corporationlkqcorp.com
Largest provider of alternative collision, recycled, and remanufactured auto parts, plus specialty aftermarket equipment and accessories across multiple countries. |
8,450 |
| 88 |
Afni, Inc.afni.com
Global contact center team providing prompt customer service on various devices Offering channel strategies and solutions to build profitable customer relationships |
8,044 |
| 89 | 7,968 | |
| 90 |
Conagra Brandsconagrabrands.com
Diverse team managing iconic and emerging food brands with a focus on innovation, integrity, and consistent business results. |
7,846 |
| 91 |
Transdev North Americatransdevna.com
Provides safe, reliable, and innovative transportation services including bus, rail, paratransit, autonomous vehicles, and maintenance across 45 US states. |
7,841 |
| 92 |
Camping Worldcampingworld.com
A nationwide retailer offering RVs, accessories, services, and expert advice to enhance RV and outdoor experiences since 1966 |
7,755 |
| 93 |
COUNTRY Financialยฎcountryfinancial.com
The company provides insurance and financial services across 19 states, helping clients protect assets and plan for the future |
7,668 |
| 94 |
Reyes Holdingsreyesholdings.com
Global food and beverage products distribution, including beer, spirits, quick-service restaurant supplies, and Coca-Cola brands, serving 200+ locations worldwide. |
7,649 |
| 95 |
Kearneykearney.com
Global consulting firm with a focus on people, strategic operations, and building the future through teamwork and hands-on expertise in over 40 countries |
7,559 |
| 96 |
CNA Insurancecna.com
Provides commercial property and casualty insurance products and services for businesses and professionals across the U.S., Canada, and Europe. |
7,473 |
| 97 |
Northwestern Memorial Hospitalnmh.org
A collaboration between healthcare and university partners, Northwestern Medicine aims to transform healthcare through research, teaching, and patient care excellence |
7,371 |
| 98 |
Loyola University Chicagoluc.edu
Private Jesuit Catholic university offering diverse undergraduate, graduate, and professional programs across multiple campuses including Chicago and Rome. |
7,315 |
| 99 |
Select Rehabilitationselectrehab.com
A leading provider of therapy services nationwide, employing thousands of licensed professionals in various clinical settings to improve patient outcomes and quality of life |
7,304 |
| 100 |
Ann & Robert H. Lurie Children's Hospital of Chicagoluriechildrens.org
Largest pediatric healthcare provider in the region, teaching partner of Northwestern University, nationally ranked in all pediatric specialties. |
7,202 |
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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 Oct 24, 2026.
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The same list elsewhere in United States
- The largest companies in the United States 91,669
- The largest companies in California 12,813
- The largest companies in New York State 10,485
- The largest companies in Texas 8,086
- The largest companies in Florida 4,945
- The largest companies in Pennsylvania 3,110
- The largest companies in Massachusetts 3,093
- The largest companies in Georgia 2,632
- The largest companies in Ohio 2,618
- The largest companies in New Jersey 2,569
- The largest companies in Virginia 2,503
- The largest companies in Michigan 2,346
- The largest companies in North Carolina 2,174
- The largest companies in Alabama 1,806
- The largest companies in Washington State 1,785
- The largest companies in Colorado 1,774
- The largest companies in Minnesota 1,700
- The largest companies in Maryland 1,527
- The largest companies in Wisconsin 1,482
- The largest companies in Arizona 1,449
- The largest companies in New York 6,920
- The largest companies in San Francisco 2,030
- The largest companies in Houston 1,791
- The largest companies in Chicago 1,668