These multinational companies in Maryland operate primarily in hospitality, IT services, and food manufacturing. Notable examples include Marriott International, managing approximately 9,000 hotels worldwide; TEKsystems, a global solutions provider accelerating business transformation; McCormick & Company, a global leader in flavor manufacturing; and T. Rowe Price, a global asset management organization. The companies listed are generally large groups, with several employing tens of thousands of individuals.
A significant concentration of hospitality companies, including Marriott International, Marriott Hotels, Sheraton Hotels & Resorts, The Ritz-Carlton Hotel Company, L.L.C., and Westin Hotels & Resorts, are headquartered in Bethesda. This indicates a strong regional presence for this sector within Maryland.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Marriott Internationalmarriott.com
Management and operation of approximately 9,000 hotels and resorts across more than 30 brands in 141 countries worldwide. |
240,261 | |||
| 2 |
Marriott Hotelsmarriott-hotels.marriott.com
Global full-service hotels and resorts offering consistent guest experiences, functional room designs, international dining, gold standard event spaces, and extensive fitness facilities. |
44,250 | |||
| 3 |
TEKsystemsteksystems.com
Global solutions provider specializing in accelerating business transformation through resolving technology, business, and talent challenges for Fortune 500 organizations |
28,131 | |||
| 4 |
Goodwill Industries Internationalgoodwill.org
nonprofit organization providing education, training, and career services to disadvantaged individuals and people with disabilities for empowerment. |
24,004 | |||
| 5 |
Sheraton Hotels & Resortssheraton.marriott.com
Global hospitality services providing innovative travel connections across hundreds of communities in over seventy countries for both local visitors and international travelers. |
21,082 | |||
| 6 |
The Ritz-Carlton Hotel Company, L.L.C.ritzcarlton.com
Global hospitality provider delivering premium hotel services and community outreach programs guided by a rigorous corporate philosophy and commitment to gold standard excellence. |
18,565 | |||
| 7 |
The Johns Hopkins Universityjhu.edu
Leading research university offering diverse academic programs across multiple campuses, fostering innovation and improving lives through education and discovery. |
18,221 | |||
| 8 |
Infinite Computer Solutionsinfinite.com
Global provider of technology modernization, digital engineering, and AI-driven IT services delivering tailored solutions across multiple industries worldwide. |
14,901 | |||
| 9 |
McCormick & Companymccormickcorporation.com
A global leader in flavor, McCormick manufactures and distributes spices, seasonings, and other flavorful products to the food industry worldwide |
14,000 | |||
| 10 |
Under Armourunderarmour.com
Design and develop innovative performance apparel, footwear, and gear focused on enhancing athletes' training, competition, and recovery experiences. |
13,004 | |||
| 11 |
T. Rowe Pricetroweprice.com
Global asset management organization providing equity, fixed income, and multi-asset solutions through rigorous research and active investing for individuals, advisors, and institutional clients. |
11,000 | |||
| 12 | 10,652 | ||||
| 13 |
United States Department of the Navynavy.mil
This organization is part of the Navy and is involved in activities related to naval operations, defense, and national security |
9,503 | |||
| 14 |
Westin Hotels & Resortswestin.marriott.com
Provides signature wellness programs across over two hundred global locations for travelers to eat, sleep, move, feel, work and play well. |
8,533 | |||
| 15 |
Perdue Farmscorporate.perduefarms.com
A fourth-generation, family-owned US food and agriculture business offering premium protein products through responsible practices and a focus on animal welfare |
8,392 | |||
| 16 |
Catholic Relief Servicescrs.org
An international humanitarian agency providing assistance to people in need in over 100 countries, with high efficiency and transparency |
7,845 | |||
| 17 |
Naval Air Systems Command (NAVAIR)navair.navy.mil
Delivers timely, effective, and sustainable naval aviation capabilities to ensure warfighter dominance and mission success while prioritizing safety and national defense objectives. |
7,687 | |||
| 18 |
Comfort Innchoicehotels.com
This company offers modern, welcoming hotels with amenities to help guests feel refreshed and ready to take on the day, focusing on owner success and growth |
6,996 | |||
| 19 |
Actalentactalentservices.com
Actalent specializes in providing scalable talent solutions and services globally, focusing on engineering, sciences, and professional development to drive value for clients |
6,572 | |||
| 20 |
Senior Helpersseniorhelpers.com
Provider of in-home senior assistance with specialized training in Alzheimer's, Dementia, and Parkinson's care Recognized as a great place to work |
6,175 | |||
| 21 |
Merklemerkle.com
A leading CXM company specializing in delivering personalized customer experiences through data, technology, analytics, and marketing strategies for Fortune 1000 companies |
5,624 | |||
| 22 |
ESAB Corporationesabcorporation.com
A global leader in innovative solutions for fabrication and specialty gas control markets, focusing on continuous improvement and empowering associates worldwide |
5,556 | |||
| 23 |
W. R. Gracegrace.com
Supplies catalysts, engineered materials, process technologies, fine chemicals. Industries enhance modern life. Manufactures renewable fuels, pharmaceuticals, food packaging better, faster, smarter. |
4,244 | |||
| 24 |
Jhpiegojhpiego.org
International non-profit health organization, affiliated with Johns Hopkins University, focuses on gynecology and obstetrics, providing education and training for better health outcomes. |
4,139 | |||
| 25 |
ISS | Institutional Shareholder Servicesiss-stoxx.com
A global provider of data, analytics, and insights for investors and companies, specializing in corporate governance, responsible investment solutions, and market intelligence |
4,014 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 26 |
Piedmont Airlinespiedmont-airlines.com
An airline with a long history of providing scheduled service to over 70 cities in the eastern US and Canada Operating the ERJ-145 aircraft |
3,883 | |||
| 27 | 3,785 | ||||
| 28 |
Abt Globalabtglobal.com
Global leader in research, evaluation, and program implementation addressing health, education, environment, agriculture, housing, and data collection challenges worldwide. |
3,748 | |||
| 29 | 3,623 | ||||
| 30 |
Allegis Groupallegisgroup.com
Providing comprehensive talent solutions worldwide through specialized companies, connecting people with opportunities and solving workforce challenges for business success. |
3,570 | |||
| 31 |
Precision Medicine Groupprecisionmedicinegrp.com
A company founded in 2012 focused on improving the drug development process through technology, data, human expertise, and strategic acquisitions |
3,553 | |||
| 32 |
Hugheshughes.com
Provides broadband equipment, services, and network operations to millions of consumers, businesses, and governments worldwide via satellite and multi-transport technologies. |
3,209 | |||
| 33 |
Aloft Hotelsaloft-hotels.marriott.com
Aloft hotels offer unique, contemporary spaces with vibrant social scenes and innovative programming for the next generation of global travelers |
3,090 | |||
| 34 |
Renaissance Hotelsmarriott.com
Luxury hotel chain focused on unique design, neighborhood experiences, and local immersion, encouraging guests to discover hidden gems at each location |
3,031 | |||
| 35 |
Allegis Global Solutionsallegisglobalsolutions.com
Global workforce solutions provider specializing in workforce design, management, consulting, and procurement to transform organizations and enhance competitive advantage. |
3,021 | |||
| 36 |
Aston Carterastoncarter.com
Providing specialized talent solutions in accounting, finance, HR, procurement, and supply chain to global clients including Fortune 500 companies. |
2,699 | |||
| 37 |
AC Hotels by Marriottac-hotels.marriott.com
AC Hotels by Marriott offers stylish, modern accommodations with a focus on essentials, European-inspired breakfast, flexible dining options, and a unique urban experience for travelers worldwide |
2,570 | |||
| 38 |
Comfort Suiteschoicehotels.com
This company offers modern and comfortable hotel accommodations with over 1,600 properties in the US and 2,100 internationally, focusing on enabling owner success |
2,550 | |||
| 39 |
The Cleaning Authoritythecleaningauthority.com
A valuable home cleaning franchise opportunity for forward-thinking entrepreneurs to invest in themselves and build a rewarding business for the future |
2,492 | |||
| 40 |
Prometricprometric.com
Global provider of secure test development and delivery solutions supporting test-takers worldwide to advance their careers through accessible testing services |
2,467 | |||
| 41 |
Health Primehpiinc.com
Physician-owned company providing practice management solutions to help physicians focus on patients by minimizing paperwork and embracing evolving healthcare technology |
2,415 | |||
| 42 |
Crisis24crisis24.com
Integrated risk management, crisis response, consulting, and global protective solutions firm, providing specialized services, security, and technology powered by AI worldwide |
2,363 | |||
| 43 |
Tenabletenable.com
Exposes and closes cybersecurity gaps, unifies security visibility, insight, and action across the attack surface for organizations globally. |
2,361 | |||
| 44 |
SEVENTH DAY ADVENTIST CHURCHadventist.org
A religious denomination based in Silver Spring, MD, focused on Seventh-day Adventist beliefs and practices |
2,337 | |||
| 45 |
University of Maryland School of Medicinemedschool.umaryland.edu
Leading biomedical research institution with top-tier faculty and extensive global reach, dedicated to advancing innovative research in virology, genomics, and global health |
2,179 | |||
| 46 |
Markenmarken.com
Experts orchestrate millions of temperature-controlled shipments annually for drug supply, advanced therapies, and medical devices, prioritizing patient needs and quality. |
2,175 | |||
| 47 |
Precision For Medicineprecisionformedicine.com
A global precision medicine clinical research organization improving therapeutics development with integrated clinical operations, laboratory expertise, and advanced data sciences |
2,060 | |||
| 48 |
ADRA Internationaladra.org
ADRA provides unconditional assistance to families worldwide by offering essentials, livelihood support, health care, education, disaster relief, and empowerment programs |
2,018 | |||
| 49 |
Choice Hotels Internationalchoicehotels.com
Global lodging franchisor managing 22 brands across upscale and midscale segments, supporting thousands of hotels and offering a rewards program for travelers. |
2,000 | |||
| 50 |
Apex Tool Group, LLCapextoolgroup.com
Global company promoting diversity, inclusion, and respect to create a positive, safe, and inspiring work environment for associates. |
1,971 | |||
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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 Nov 11, 2026.
More company lists in Maryland
- The largest companies in Maryland 1,688
- IT Services and IT Consulting companies in Maryland 189
- IT services companies in Maryland 179
- Professional services firms in Maryland 176
- Education providers in Maryland 151
- Hospitals and Health Care companies in Maryland 114
- Consulting firms in Maryland 112
- Companies with in-house R&D in Maryland 107
- Healthcare providers in Maryland 105
- Critical infrastructure operators in Maryland 94
- Retail chains in Maryland 91
- Public sector organisations in Maryland 91
- Financial services firms in Maryland 88
- Aerospace and defence companies in Maryland 80
- Construction companies in Maryland 80
- Manufacturers in Maryland 75
- Financial Services companies in Maryland 65
- Government Administration companies in Maryland 61
- Higher Education companies in Maryland 54
- Hardware manufacturers in Maryland 53
- Research institutes in Maryland 52
- SaaS companies in Maryland 52
- Companies with a mobile app in Maryland 49
- AI companies in Maryland 48
The same list elsewhere in United States
- Multinational companies in the United States 16,197
- Multinational companies in California 2,592
- Multinational companies in New York State 2,216
- Multinational companies in Texas 1,418
- Multinational companies in Florida 897
- Multinational companies in Illinois 831
- Multinational companies in Massachusetts 637
- Multinational companies in New Jersey 624
- Multinational companies in Georgia 521
- Multinational companies in Pennsylvania 472
- Multinational companies in Michigan 468
- Multinational companies in Alabama 416
- Multinational companies in Virginia 396
- Multinational companies in Ohio 390
- Multinational companies in North Carolina 358
- Multinational companies in Washington State 288
- Multinational companies in Colorado 228
- Multinational companies in New York 1,836
- Multinational companies in San Francisco 446
- Multinational companies in Houston 402
- Multinational companies in Chicago 366
- Multinational companies in Miami 289
- Multinational companies in Atlanta 252
- Multinational companies in Boston 241