The 68 largest companies in Worcester (2026 list)

#	Company	Industry	Headquarters	Employees	Founded
1	UMass Memorial Health ummhealth.org Largest healthcare system in Central Massachusetts offering hospital care, outpatient services, medical training, research, and community health support.	Hospitals and Health Care	🇺🇸 Worcester	10,819	1999
2	UMass Memorial Medical Center ummhealth.org A trusted academic medical center in Central Massachusetts, providing comprehensive and award-winning care through cutting-edge technology and highly trained specialists	Hospitals and Health Care	🇺🇸 Worcester	7,256	n/a
3	UMass Chan Medical School umassmed.edu Trains doctors, scientists, and nurses, conducts groundbreaking research and clinical trials, offers consulting services, and manufactures vaccines and biologics.	Higher Education	🇺🇸 Worcester	6,314	n/a
4	Worcester Polytechnic Institute wpi.edu A prestigious institution offering opportunities for ambitious individuals to succeed, be challenged, and make a difference in the world	Higher Education	🇺🇸 Worcester	3,846	n/a
5	Sanctuary sanctuary.co.uk A not-for-profit housing association providing affordable homes and care in England and Scotland, aiming to build sustainable communities	Non-profit Organizations	🇺🇸 Worcester	3,510	1969
6	Saint-Gobain Abrasives saint-gobain-surfacesolutions.com The company offers powerful and precise abrasives solutions for various markets, focusing on customization, performance, and safety with global presence	Industrial Machinery Manufacturing	🇺🇸 Worcester	3,196	1885
7	College of the Holy Cross holycross.edu A highly selective liberal arts college offering personalized education in the Jesuit, Catholic tradition, emphasizing excellence in teaching, learning, and research	Higher Education	🇺🇸 Worcester	2,812	1843
8	Clark University clarku.edu A small liberal arts-based research university in Massachusetts, Clark University addresses global challenges through interdisciplinary solutions and aims to transform higher education	Higher Education	🇺🇸 Worcester	1,953	1887
9	Worcestershire Acute Hospitals NHS Trust worcsacute.nhs.uk Hospital-based healthcare services across three sites, serving over 600,000 people with outpatient, inpatient, emergency, and diagnostic care.	Hospitals and Health Care	🇺🇸 Worcester	1,700	2000
10	Allan Myers Inc.allanmyers.com Heavy civil construction and materials supply including asphalt and aggregates, serving transportation, water, design-build, and government sectors.	Construction	🇺🇸 Worcester	1,384	1939
11	Seven Hills Foundation sevenhills.org Provide support and services to individuals with disabilities and life challenges across Massachusetts and Rhode Island through extensive programming.	Individual and Family Services	🇺🇸 Worcester	1,381	1951
12	Reliant Medical Group reliantmedicalgroup.org A leading independent medical group in Central Massachusetts with over 500 providers, 2,700 employees, and 20 locations, offering compassionate and collaborative patient care	Hospitals and Health Care	🇺🇸 Worcester	1,356	1929
13	Worcester State University worcester.edu A public institution offering undergraduate and graduate programs in liberal arts, teacher education, business, and health professions, focused on student success and community collaboration	Higher Education	🇺🇸 Worcester	1,339	1874
14	First Source Solution A consumer services company located in Worcester, Massachusetts, focused on providing solutions to meet the needs of their customers	Consumer Services	🇺🇸 Worcester	1,278	n/a
15	Assumption University assumption.edu A Catholic, coeducational institution offering strong academic programs in business and professional studies, promoting a rich Catholic intellectual tradition	Higher Education	🇺🇸 Worcester	1,247	1904
16	Saint Vincent Hospital stvincenthospital.com Advanced healthcare facility in Worcester offering comprehensive services such as heart care, orthopedics, robotic surgery, and women & infants programs in a friendly atmosphere	Hospitals and Health Care	🇺🇸 Worcester	1,203	n/a
17	City of Worcester worcesterma.gov Local government providing city management, elected officials, affordable housing, quality education, cultural activities, and transportation services in central Massachusetts.	Government Administration	🇺🇸 Worcester	1,140	1848
18	Fallon Health fallonhealth.org A nonprofit health care organization offering coordinated, integrated care for older adults and individuals with complex health needs through various health insurance products and programs	Insurance	🇺🇸 Worcester	1,113	1977
19	Quinsigamond Community College qcc.edu A community college in Worcester, MA offering diverse educational opportunities, including career programs, transfer options, and cultural enrichment for over 50 years	Higher Education	🇺🇸 Worcester	1,022	1963
20	Eaton Corporation eaton.com Designs and manufactures data center airflow management solutions, monitoring consoles, furniture, and workbench systems for high-tech environments Trusted by major tech companies and government agencies	IT Services and IT Consulting	🇺🇸 Worcester	917	n/a
21	Polar Beverages polarbeverages.com A leading independent bottling company in the US, producing own brands like Polar Seltzer, as well as partnering for private-label manufacturing and distribution	Food and Beverage Services	🇺🇸 Worcester	755	1882
22	Nouria nouria.com A multi-generational family convenience store operator, fuel distributor, and car wash operator with 160+ locations, focusing on customer experience and community-inspired offerings	Retail	🇺🇸 Worcester	751	1989
23	Masis Staffing Solutions masisstaffing.com A family-oriented staffing firm that specializes in talent management, providing custom solutions for hiring needs, payroll services, and procurement	Staffing and Recruiting	🇺🇸 Worcester	636	2013
24	Coghlin Companies coghlincompanies.com Coghlin Companies offers Time to Market Services for commercializing industrial equipment and medical devices, including engineering, manufacturing, and global fulfillment	Manufacturing	🇺🇸 Worcester	593	1885
25	VNA Care (VNA of Boston, VNA Care Network, VNA Hospice and Palliative Care, Private Duty Care)vnacare.org Provides comprehensive home health, hospice, palliative, and private care services, including a hospice residence, to over 29,000 patients annually across Massachusetts.	Hospitals and Health Care	🇺🇸 Worcester	585	1886
26	Community Healthlink Inc communityhealthlink.org Promoting mental and physical health, dignity, and recovery for individuals and families in Central Massachusetts through evidence-based practices and innovative healthcare approaches	Hospitals and Health Care	🇺🇸 Worcester	524	1977
27	Open Sky Community Services openskycs.org Provider of services and supports for individuals with mental health challenges, developmental disabilities, brain injury, substance use disorders, and other complex needs in Central Massachusetts	Mental Health Care	🇺🇸 Worcester	501	1973
28	Imperial Distributors, Inc.imperialdist.com A leader in supermarket non-food distribution and merchandising across the Northeast, South Atlantic, and Midwest states, with a focus on performance excellence	Wholesale	🇺🇸 Worcester	495	1939
29	Ascentria Care Alliance ascentria.org A leading New England organization empowering individuals and families to overcome challenges and thrive through a variety of human-centered services and programs	Individual and Family Services	🇺🇸 Worcester	428	1872
30	Edward M. Kennedy Community Health Center kennedychc.org Provides comprehensive, integrated primary and urgent care, dental, optometry, behavioral health, and social services to communities in Central Massachusetts.	Hospitals and Health Care	🇺🇸 Worcester	328	1972
31	YOU, Inc.youinc.org Leading child welfare and behavioral health organization in Central Massachusetts offering programs for at-risk youth and families to promote strong family units and bright futures	Mental Health Care	🇺🇸 Worcester	244	1971
32	Worcester Art Museum worcesterart.org The art museum engages diverse audiences with transformative programs and exhibitions, showcasing a collection ranging from ancient to contemporary works	Museums, Historical Sites, and Zoos	🇺🇸 Worcester	190	1898
33	Army & Roche, LLC The company, which is now closed, provided services or products before shutting down	Law Practice	🇺🇸 Worcester	187	1974
34	Easterseals Massachusetts easterseals.com A non-profit organization in Massachusetts dedicated to empowering individuals with disabilities to reach their full potential through various programs and services	Individual and Family Services	🇺🇸 Worcester	184	1944
35	Abby Kelley Foster Charter Public School akfcs.org This educational institution in Worcester serves a diverse student body of 1,426 K-12 students with a staff of 200+, offering extracurricular and academic opportunities	Primary and Secondary Education	🇺🇸 Worcester	182	1998
36	Omni Services, Inc.omniservices.com A leading distributor of hoses and accessories in the Northeast, prioritizing customer needs while focusing on efficiency, technology, and global opportunities	Wholesale	🇺🇸 Worcester	181	1976
37	Community Legal Aid communitylegal.org Non-profit organization providing free civil legal services to low-income and elderly residents in Central and Western Massachusetts, ensuring fairness in the justice system	Legal Services	🇺🇸 Worcester	179	1951
38	Mirick miricklaw.com New England's leading legal team providing professional excellence, client service, and value in diverse industries such as finance, healthcare, and technology	Law Practice	🇺🇸 Worcester	178	1916
39	Webster First Federal Credit Union websterfirst.com A large credit union based in Massachusetts with 15 branches in multiple counties, focused on empowering members to live their best financial lives	Banking	🇺🇸 Worcester	174	1928
40	NHS Herefordshire and Worcestershire herefordshireandworcestershire.icb.nhs.uk Statutory organization managing NHS budget, developing health plans, and arranging services for Herefordshire and Worcestershire population	Hospitals and Health Care	🇺🇸 Worcester	162	n/a
41	DCU Center dcucenter.com A leading arena and convention center in New England, managed by ASM Global for hosting events, meetings, entertainment, and sports like hockey	Events Services	🇺🇸 Worcester	159	1982
42	YMCA of Central Massachusetts ymcaofcm.org Offering a wide range of services including gyms, pools, preschool, summer camp, and high school programming for all ages and interests Join online today!	Non-profit Organizations	🇺🇸 Worcester	154	n/a
43	Worcester Telegram & Gazette telegram.com A leading provider of news and sports coverage in Central Massachusetts, delivering up-to-date and comprehensive information to the community	Newspaper Publishing	🇺🇸 Worcester	153	1866
44	CHOICES 4choices.org This company creates a safe and supportive recovery community for adolescents with addiction and co-occurring disorders to reclaim their lives	Non-profit Organizations	🇺🇸 Worcester	149	n/a
45	The King’s School, Worcester ksw.org.uk A thriving community of schools providing an inspiring education for children aged two to eighteen, with traditional values and modern teaching methods	Primary and Secondary Education	🇺🇸 Worcester	145	1541
46	Cornerstone Energy Services Inc.cornerstoneenergyinc.com Provides engineering, survey, and land services for energy infrastructure projects, focusing on safety, client advocacy, integrity, and quality results	Utilities	🇺🇸 Worcester	88	2012
47	Saint-Gobain Ceramics - SGP linkedin.com The company designs and manufactures advanced ceramic materials for various industries worldwide, offering tailored solutions to meet tough application requirements	Glass, Ceramics and Concrete Manufacturing	🇺🇸 Worcester	82	n/a
48	SJL Insurance Services sjlins.co.uk UK-based commercial insurance broker offering high-quality services to national and international clients, with expertise in specialist products for various market groups	Insurance	🇺🇸 Worcester	79	2001
49	Sullivan Insurance Group sullivangroup.com Insurance and risk management services provider for individuals and small to mid-sized businesses, offering tailored coverage options and expert counsel since 1957	Insurance	🇺🇸 Worcester	69	1957
50	Daymark Energy Advisors daymarkea.com An economics and engineering consulting firm specializing in serving the North American energy industries by navigating evolving technologies, regulations, and markets	Business Consulting and Services	🇺🇸 Worcester	59	1980
51	Dolphin Computer Access yourdolphin.com A global leader in developing assistive technology for individuals with visual impairments, offering software solutions for work, education, and independence	Software Development	🇺🇸 Worcester	54	1986
52	Hazelton Mountford Ltd hazeltonmountford.co.uk Specializing in business insurance in the UK, we help protect organizations from risks, advise on coverage, and ensure proper protection levels	Insurance	🇺🇸 Worcester	48	2008
53	ckSmithSuperior cksmithsuperior.com A reliable supplier of residential and commercial fuel such as heating oil, gasoline, propane, and more, offering automatic delivery and emergency services	Oil and Gas	🇺🇸 Worcester	41	1893
54	Boys & Girls Club of Worcester bgcworcester.org This company aims to help youth, especially those facing challenges, become responsible citizens and leaders through supportive relationships and mentorship	Non-profit Organizations	🇺🇸 Worcester	40	1889
55	PULSAR®pulsaruk.com Innovative collection of high performance apparel in the UK, specializing in high visibility, flame retardant, and electric arc protective clothing Visit website for more information	Retail Apparel and Fashion	🇺🇸 Worcester	38	1979
56	World Energy Services worldenergyes.com A leader in delivering comprehensive energy efficiency services, renewable technology, and electric vehicle charging solutions to help clients save money and reduce carbon emissions	Facilities Services	🇺🇸 Worcester	36	2011
57	Herlihy Insurance Group herlihygroup.com A third-generation independent insurance and financial services agency serving over 7000 clients in Massachusetts, offering customized solutions for individuals and businesses	Insurance	🇺🇸 Worcester	29	1927
58	ETB Autocentres etbtyres.co.uk Automotive fast-fit retailer providing tyres, exhausts, batteries, vehicle servicing, MOT's, and other fast-fit services	Retail	🇺🇸 Worcester	20	1980
59	Malvern Medical Developments Ltd malmed.co.uk A leading company specializing in designing, developing, and manufacturing innovative medical devices in collaboration with global companies, establishments, and consultants	Medical Equipment Manufacturing	🇺🇸 Worcester	11	1988
60	CORE Remodeling Services, Inc coreremodelingservices.com Specializing in home renovations, CORE Remodeling Services, Inc offers kitchen, bathroom, basement remodeling, deck building, window/door replacements in Worcester County & Metro West	Construction	🇺🇸 Worcester	8	2012
61	Commonwealth Airways iflycca.com An airline company focused on providing frequent, affordable nonstop flights to local airports through cooperative partnerships, with a sustainable and comfortable passenger experience	Airlines and Aviation	🇺🇸 Worcester	8	2021
62	Acoustic Java acousticjava.com A small-batch coffee roaster and café in Worcester, MA, focusing on locally-grown, organic food and sustainable specialty coffee and tea	Food and Beverage Services	🇺🇸 Worcester	8	2007
63	BB&R Design Build bbrdesignbuild.com Premium remodeling services in eastern and central Massachusetts, offering integrated design advice, customized material selections, and superior construction craftsmanship led by experienced professionals	Construction	🇺🇸 Worcester	5	2004
64	Multiscale Systems multiscalesystems.com Innovative industrial solutions utilizing high-performance materials and advanced manufacturing techniques	Engineering Services	🇺🇸 Worcester	5	2018
65	Grid Management A real estate management company with a proven track record specializing in multifamily, commercial, retail, and mixed-use properties	Real Estate	🇺🇸 Worcester	4	2014
66	Commonwealth Electric comelectrical.com Specializing in commercial energy efficiency solutions, we offer expertise in lighting, mechanical, refrigeration, and more to help businesses go green and reduce costs	Appliances, Electrical, and Electronics Manufacturing	🇺🇸 Worcester	3	n/a
67	Comportz Technologies comportz.com Providing businesses with top IT solutions to support, maintain, and evolve their technology in a constantly changing world	IT Services and IT Consulting	🇺🇸 Worcester	2	2008
68	Omnisole omnisole.com Specializing in innovative renewable energy solutions using the latest technology for a cleaner and more sustainable future	Oil and Gas	🇺🇸 Worcester	2	n/a

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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 Oct 24, 2026.

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 Illinois 4,175
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 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