| # | Company | Employees |
|---|---|---|
| 1 |
Cleveland Clinicmy.clevelandclinic.org
A not-for-profit academic medical center in Ohio, offering clinical care, research, and education with multiple facilities worldwide |
49,624 |
| 2 |
Cardinal Healthcardinalhealth.com
Distribution of pharmaceuticals, specialty products, home-health supplies, nuclear pharmacy operations, manufacturing, and providing performance and data solutions globally. |
48,000 |
| 3 |
Bon Secours Mercy Healthbsmhealth.org
Operates 48 hospitals and thousands of providers across seven states and Ireland, focusing on quality, safety, and cost-effective healthcare delivery. |
32,495 |
| 4 |
University Hospitalsuhhospitals.org
Integrated healthcare provider in northern Ohio, offering hospital services, outpatient facilities, physician offices, and leading research programs. |
20,700 |
| 5 |
University Hospitals Connor Integrative Health Networkuhhospitals.org
A healthcare provider offering integrative medicine therapies that address physical, emotional, mental, social, spiritual, and environmental factors for holistic healing and optimal health |
19,900 |
| 6 |
The Ohio State University Wexner Medical Centerwexnermedical.osu.edu
Academic medical center providing personalized patient care, medical education, research innovation, and extensive healthcare services across multiple specialties. |
15,993 |
| 7 |
OhioHealthohiohealth.com
A nationally recognized, not-for-profit health system with 14 hospitals and 200+ care sites, focused on improving health and wellbeing |
15,284 |
| 8 |
Mercy Healthmercy.com
Provides compassionate, high-quality healthcare across Ohio and Kentucky with a large network of employees and numerous care points. |
14,380 |
| 9 |
Nationwide Children's Hospitalnationwidechildrens.org
Provides advanced pediatric medical care, conducts leading research, trains specialists, and offers specialized programs in heart, cancer, and neonatology. |
12,575 |
| 10 |
ProMedicapromedica.org
A not-for-profit health organization offering acute and ambulatory care, insurance, post-acute services, academic programs, and various healthcare facilities and services |
9,864 |
| 11 |
Kettering Healthketteringhealth.org
A faith-based healthcare system providing medical care, outpatient services, and health science education through dedicated providers and medical professionals |
8,249 |
| 12 |
HCR ManorCarearden-courts.com
A not-for-profit integrated healthcare organization providing short-term, long-term care, memory care, home health, hospice services, with a focus on improving health and well-being |
7,697 |
| 13 |
TriHealthtrihealth.com
A comprehensive healthcare provider offering a full range of services, including prevention, wellness, education, and acute care through multiple locations in Cincinnati |
7,070 |
| 14 |
UC Healthuchealth.com
Top clinicians and researchers providing world-class, compassionate healthcare through advanced clinical services, teaching, innovation, and research in Cincinnati. |
6,134 |
| 15 |
Ensemble Health Partnersensemblehp.com
Manages over $29 billion in net patient revenue, partners with health systems to provide financial solutions, maximizes technology, and improves cash collections |
5,836 |
| 16 |
Summa Healthsummahealth.org
Integrated healthcare system in Ohio with hospitals, health centers, health plan, research, and foundations, known for patient care excellence and innovative approaches |
5,630 |
| 17 |
US Acute Care Solutionsusacs.com
A national leader in physician-owned integrated acute care services, providing high-quality care to millions of patients annually at over 500 programs |
5,376 |
| 18 |
The MetroHealth System (Cleveland, OH)metrohealth.org
Healthcare system focusing on community health by addressing social determinants, providing integrated care, and emphasizing disease prevention alongside treatment |
5,352 |
| 19 |
The Christ Hospital Health Networkthechristhospital.com
Regional healthcare system providing integrated, individualized care through extensive physician network, advanced specialties, and patient-focused wellness services in Cincinnati. |
5,300 |
| 20 |
Akron Children'sakronchildrens.org
Largest pediatric healthcare system in Northern Ohio providing compassionate, high-quality care through hospitals, regional centers, and specialty locations. |
5,264 |
| 21 |
Premier Health Partnerspremierhealth.com
Regional healthcare system offering hospital care, emergency services, outpatient clinics, home health, mental health, and substance abuse treatment in Southwest Ohio. |
4,992 |
| 22 |
Mount Carmel Health Systemmountcarmelhealth.com
Four hospitals, emergency centers, surgery centers, outpatient facilities, physician offices, and community outreach providing personalized, people-centered healthcare in central Ohio. |
4,778 |
| 23 |
Aultman Health Foundationaultman.org
Leading provider of healthcare services in Stark County since 1892, offering high-quality care, educational opportunities, wellness programs, and community support |
3,276 |
| 24 |
Home Helpers Home Carehomehelpershomecare.com
Providing comprehensive in-home care services for seniors and those in need, including companion care, personal care, and Alzheimer's and dementia care |
3,135 |
| 25 |
Cleveland Clinic Akron Generalmy.clevelandclinic.org
A nonprofit healthcare organization providing medical, rehabilitation, wellness, and community health services ranked as one of the top hospitals in Ohio |
2,783 |
| 26 |
Dayton Children's Hospitalchildrensdayton.org
Specialized pediatric hospital providing children in a 20-county area with comprehensive medical care through a dedicated team of physicians and staff |
2,751 |
| 27 |
Miami Valley Hospitalpremierhealth.com
A leading regional healthcare provider offering maternity, emergency, air ambulance services, transplant units, oncology, cardiology, rehabilitation, and surgical services Visit website for more information |
2,637 |
| 28 |
CommuniCare Health Servicescommunicarehealth.com
Provider of nursing, rehabilitation, and assisted living services in multiple states, focusing on creating caring communities where residents are treated like family |
2,493 |
| 29 |
Sotera Health Companysoterahealth.com
A global health company leveraging over 500 years of combined expertise in scientific safety across medical, pharma, tissue, and food industries |
2,370 |
| 30 |
Adena Health Systemadena.org
Healthcare organization in Ohio providing a wide range of specialty services with a focus on compassion, integrity, and excellence in caring for communities |
2,159 |
| 31 |
AMIRIPROJECTyahoo.com
Empowering young African-American males with knowledge, skills, mentoring, and networking opportunities to pursue careers in healthcare and lead healthy lifestyles |
2,147 |
| 32 |
Saber Healthcare Groupsaberhealth.com
Skilled nursing and rehabilitation services provider focused on delivering individualized care, innovative healthcare technology, and compassionate professionals across multiple states |
2,131 |
| 33 |
Genesis Healthcare Systemgenesishcs.org
Integrated healthcare delivery system in Southeastern Ohio offering not-for-profit hospital services, specialized centers, physician network, and various outpatient care centers and affiliates |
2,059 |
| 34 |
Ohio State University Comprehensive Cancer Center-James Cancer Hospital & Solove Research Institutecancer.osu.edu
Leading cancer research center and hospital focused on integrating research, education, and patient care to advance prevention, detection, and treatment Ranked among top in the nation |
1,970 |
| 35 |
Blanchard Valley Health Systembvhealthsystem.org
A comprehensive health system in northwest Ohio offering a full continuum of care, employing over 3,000 associates and serving an eight county area |
1,658 |
| 36 |
Quantum Healthquantum-health.com
Providing compassionate healthcare navigation with AI-driven guidance, improving member outcomes, controlling costs, and enhancing provider engagement for organizations. |
1,586 |
| 37 |
Southwest General Health Centerswgeneral.com
A non-profit hospital offering a wide range of medical services, state-of-the-art technology, and support programs with a commitment to excellence and compassion |
1,402 |
| 38 |
Southern Ohio Medical Centersomc.org
A 248-bed hospital in Portsmouth, Ohio, providing emergency, surgical, and a wide range of healthcare services with a focus on safety, quality, and customer service |
1,294 |
| 39 |
Licking Memorial Health Systemslmhealth.org
A not-for-profit healthcare organization offering a range of quality patient care services, specialized medical services, and fundraising for future medical care improvement |
1,276 |
| 40 |
Holzer Health Systemholzer.org
A healthcare system with a rich history, providing comprehensive services and advanced technology in south central Ohio, West Virginia, and Kentucky |
1,191 |
| 41 |
Fairfield Medical Centerfmchealth.org
A vibrant healthcare organization providing exceptional care, dedicated to creating a positive impact on the community through personal growth and unparalleled employee support |
1,187 |
| 42 |
Otterbein SeniorLifeotterbein.org
With over 100 years of experience, we provide a range of senior living services guided by values such as respect, commitment, and quality |
1,154 |
| 43 |
CORA Physical Therapycareers.coraphysicaltherapy.com
Providing outpatient physical rehabilitation services with transparent communication and ethical practices to ensure excellent care for patients and employees |
1,151 |
| 44 |
Firelands Healthfirelands.com
A comprehensive healthcare provider offering a 287-bed medical center, behavioral health services, rehabilitation, and a physician group |
1,092 |
| 45 |
Avita Health Systemavitahealth.org
A nonprofit health care system in North Central Ohio with hospitals, clinics, and providers dedicated to improving patient experience and community wellbeing |
1,066 |
| 46 |
Health Carouselhealthcarousel.com
A total talent management company providing healthcare staffing solutions to ensure US patients have access to qualified professionals when needed |
984 |
| 47 |
Legacy Health Serviceslhshealth.com
Established provider of high-quality care with experienced professionals in Ohio, offering a range of facilities and services for over fifty years Contact for more information |
962 |
| 48 |
Trinity Health Systemtrinityhealth.com
A healthcare system committed to improving health, advancing social justice, and providing comprehensive services to the community with compassion and excellence |
956 |
| 49 |
Lake Healthuhhospitals.org
Healthcare provider in Northeast Ohio now part of a larger health system with numerous hospitals, health centers, and physician offices |
927 |
| 50 |
Heartland Hospice Servicesgentivahs.com
Heartland Hospice Services provides hospital and health care services in Lima, Ohio, focusing on compassionate end-of-life care for patients |
922 |
| 51 |
Lima Memorial Health Systemlimamemorial.org
A leading health care system in west central Ohio offering a wide range of high-quality medical services and specialized care |
889 |
| 52 |
Ohio Livingohioliving.org
A leading not-for-profit organization providing senior living, healthcare, hospice, and charitable services to over 10 million Ohio residents |
884 |
| 53 |
agilon healthagilonhealth.com
agilon health empowers primary-care physicians to focus on overall patient health, creating a value-based care system that supports long-term practice viability |
856 |
| 54 |
Central Ohio Primary Carecopcp.com
A leading primary care provider in Central Ohio, focused on offering the best patient care through innovative practices and services |
844 |
| 55 |
Quadax, Inc.quadax.com
A trusted healthcare partner offering revenue cycle optimization solutions through business analytics and superior service to enhance reimbursement of care |
749 |
| 56 |
Mercy Medical Center, Canton, Ohiocantonmercy.org
Faith-based medical center with 476-bed hospital and multiple outpatient locations, part of Cleveland Clinic health system, with strong safety ratings |
744 |
| 57 |
Mercy Health (Youngstown)mercy.com
Integrated health system in Ohio's Mahoning Valley, offering nationally ranked care across physician offices, hospitals, home care, long-term care, and hospice services |
737 |
| 58 |
Knox Community Hospitalkch.org
A not-for-profit hospital in Mount Vernon, Ohio, committed to improving patient service, technology, and facilities for the community's benefit |
710 |
| 59 |
Alternate Solutions Health Networkashealthnet.com
Specializing in post-acute care solutions, we partner with health systems to improve quality outcomes and financial performance through centralized operations and innovative software |
710 |
| 60 |
Carespring Health Care Managementcarespring.com
The company provides professional, personal, and positive nursing care through experienced therapists and compassionate caregivers, focusing on individualized treatment plans for positive outcomes |
684 |
| 61 |
Unify Healthcare Servicesunifyrcm.com
A modern medical billing company specializing in revenue cycle management, claim denial prevention, and comprehensive billing solutions for healthcare facilities |
683 |
| 62 |
Hospice of the Western Reservehospicewr.org
Provider of hospice and palliative care services, along with bereavement support, throughout Northern Ohio regardless of ability to pay |
679 |
| 63 |
Health Allianceuchealth.com
UC Health provides world-class medical care in Cincinnati, backed by top clinicians and researchers from the University of Cincinnati College of Medicine |
672 |
| 64 |
The Toledo Clinictoledoclinic.com
A large multi-specialty physician group in Toledo offering a wide range of medical services including radiology, laboratory, pharmacy, and outpatient surgery |
668 |
| 65 |
Arden Courtsarden-courts.com
Specialized memory care that focuses on providing a safe and nurturing environment, tailored to meet the physical, mental, and social needs of individuals with Alzheimer's or dementia |
662 |
| 66 |
Fisher-Titus Medical Centerfishertitus.org
An independent not-for-profit community health system in Ohio, providing high-quality medical care, digital technology, and personalized services to residents |
656 |
| 67 |
Altercare Integrated Health Servicesaltercareonline.com
A family-owned healthcare company providing rehabilitation, post-acute care, assisted living, and Alzheimer's/dementia care services with a focus on quality and dedication |
655 |
| 68 |
Fairview Hospitalmy.clevelandclinic.org
Faith-based community hospital with 517 beds, offering comprehensive healthcare services including Level II Trauma Center, Cancer Center, Heart Center, and Surgery |
647 |
| 69 |
Western Reserve Hospitalwesternreservehospital.org
Physician-owned hospital in Northeast Ohio offering high quality healthcare services, empowering physicians to drive delivery and prioritize patient satisfaction |
617 |
| 70 |
Rainbow Babies and Children's Hospitaluhhospitals.org
Specialized hospital focused on providing healthcare services to babies and children, with a commitment to excellence and compassionate care |
606 |
| 71 |
UToledo Healthhealth.utoledo.edu
public research university providing diverse services, flexible work schedules, professional growth opportunities, and a healthy work-life balance |
602 |
| 72 |
St Ritas Medical Center
A hospital and health care company located in Delphos, Ohio, providing medical services and care to patients in the United States |
588 |
| 73 |
Hospice of Northwest Ohiohospicenwo.org
The company provides specialized hospice care for terminally ill patients and their families in Northwest Ohio and Southeast Michigan |
586 |
| 74 |
Orthopedic ONEorthopedicone.com
A leading orthopedic surgery practice in Ohio with 60 experts offering comprehensive care, advanced diagnostics, surgery, and rehabilitation at multiple convenient locations |
585 |
| 75 |
Edgeparkedgepark.com
A nationwide provider of home medical supplies offering a wide range of products, comprehensive insurance coverage, and easy ordering for patients and parents |
576 |
| 76 |
National Registry of Emergency Medical Techniciansnremt.org
Established in 1970, this national certification agency sets standards, trains, monitors, and vets emergency medical personnel, certifying over 2 million EMS providers nationwide |
558 |
| 77 |
Montefioremenorahpark.org
Providing comprehensive and excellent care to Cleveland's aging Jewish and general community since 1882, supporting individuals and families |
543 |
| 78 |
VRIvricares.com
A company providing remote patient monitoring services to save lives and help individuals maintain their independence, with a focus on caregiver support |
534 |
| 79 |
Homewatch CareGivershomewatchcaregivers.com
Providing personalized and caring services to support families in their time of need |
526 |
| 80 |
Kingston HealthCarekingstonhealthcare.com
Provider of senior living communities across the US, offering independent living, assisted living, skilled nursing, rehabilitation, and memory care services with a focus on employee well-being and growth |
518 |
| 81 |
CompuNet Clinical Laboratoriescompunetlab.com
Clinical diagnostic laboratory offering 2,000+ lab tests with no doctor's referral needed, fast results, affordable options, and patient-first approach |
513 |
| 82 |
Wood County Hospitalwoodcountyhospital.org
A community-focused hospital, providing 24/7 care to Wood and Henry County residents with a tradition of support and trust since 1951 |
513 |
| 83 |
Ashtabula Regional Medical Centerarmchealth.org
A private, not-for-profit hospital in Ashtabula County, Ohio, offering multi-specialty care to residents of Northeastern Ohio for over 108 years |
508 |
| 84 |
Memorial Health System - Ohiomhsystem.org
A not-for-profit healthcare system in Marietta, Ohio, providing comprehensive services through hospitals, emergency departments, outpatient sites, physicians, home health, and hospice care |
508 |
| 85 |
CareStarcarestar.com
Providing case management, online education courses, and IT services for individuals with long term chronic disabilities and their caregivers since 1988 |
504 |
| 86 |
Wilson Healthwilsonhealth.org
Providing a wide range of healthcare services, including access to physicians and strong community partnerships, to improve the overall health and well-being of individuals |
501 |
| 87 |
MEDLABthemedlab.com
A premier clinical laboratory with CAP and CLIA accreditation, specializing in long term care services with a vast network and over six million tests annually |
498 |
| 88 |
Foundations Health Solutionsfoundationshealth.net
A compassionate long-term care provider in Ohio, dedicated to superior resident outcomes by focusing on staff, resident, and family needs |
472 |
| 89 |
UC Health West Chester Hospitalwestchesterhospital.uchealth.com
A member of UC Health, this hospital in West Chester is committed to providing excellent and compassionate healthcare to the community |
464 |
| 90 |
UASIuasisolutions.com
Leader in healthcare revenue cycle consulting offering coding, compliance review, education, management, and revenue integrity services with focus on quality and innovation |
459 |
| 91 |
ExactCareexactcarepharmacy.com
ExactCare provides comprehensive pharmacy services to patients with complex medical needs, focusing on improving adherence and enabling safer medication regimens for better health outcomes |
446 |
| 92 |
Menorah Parkmenorahpark.org
A non-profit organization in Northeast Ohio offering high-quality care and wellness services for seniors, with customizable options to fit different lifestyles and needs |
446 |
| 93 |
Crystal Clinic Orthopaedic Centercrystalclinic.com
A nationally renowned orthopaedic center known for exceptional care and innovative surgical technology, specializing in joint replacement and spinal surgery |
439 |
| 94 |
Zales The Diamond Storezales.com
Leading American jewelry retailer offering a wide range of fine jewelry including rings, necklaces, earrings, bracelets, and watches since 1924 |
439 |
| 95 |
Concordance Healthcare Solutionsconcordancehealthcare.com
Healthcare distributor providing products, equipment, and supply chain solutions to various healthcare facilities & businesses across the continuum |
431 |
| 96 |
Mary Rutan Healthmaryrutan.org
A community-focused hospital in Logan County providing quality healthcare services for nearly 100 years, committed to meeting the needs of patients and their families |
429 |
| 97 |
Medical Service Companymedicalserviceco.com
Provider of home medical equipment, oxygen, and health care services ensuring patient comfort and quality of life through compassionate support and superior customer service |
423 |
| 98 |
Ohio's Hospiceohioshospice.org
Not-for-profit hospice partnership in Ohio dedicated to providing compassionate care, enhancing dignity, and reducing suffering in community-based settings |
419 |
| 99 |
Sprenger Health Care Systemssprengerhealthcare.com
Sprenger Health Care Systems provides personalized care by continuously growing and innovating to meet community needs, building on a legacy of quality care |
415 |
| 100 |
Equitas Healthequitashealth.com
A nonprofit healthcare system offering LGBTQ+, HIV/AIDS services in multiple states with patient-centered medical, pharmacy, mental health & community health initiatives |
410 |
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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.
More company lists in Ohio
- The largest companies in Ohio 2,618
- Manufacturers in Ohio 197
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- Financial services firms in Ohio 114
- Education providers in Ohio 112
- Higher Education companies in Ohio 109
- IT Services and IT Consulting companies in Ohio 109
- Critical infrastructure operators in Ohio 105
- Machinery Manufacturing companies in Ohio 94
- Healthcare providers in Ohio 90
- Construction companies in Ohio 89
- Contract manufacturers in Ohio 88
- Financial Services companies in Ohio 83
- Motor Vehicle Manufacturing companies in Ohio 81
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- Retail companies in Ohio 73
- Insurance companies in Ohio 72
- Public sector organisations in Ohio 70
- Real Estate companies in Ohio 67
- Manufacturing companies in Ohio 66
- Education Administration Programs companies in Ohio 64
- SaaS companies in Ohio 64
- Automotive manufacturers and suppliers in Ohio 58
The same list elsewhere in United States
- Hospitals and Health Care companies in the United States 5,419
- Hospitals and Health Care companies in California 519
- Hospitals and Health Care companies in Texas 410
- Hospitals and Health Care companies in New York State 392
- Hospitals and Health Care companies in Florida 346
- Hospitals and Health Care companies in Illinois 274
- Hospitals and Health Care companies in Pennsylvania 238
- Hospitals and Health Care companies in Massachusetts 193
- Hospitals and Health Care companies in Tennessee 189
- Hospitals and Health Care companies in North Carolina 156
- Hospitals and Health Care companies in New Jersey 143
- Hospitals and Health Care companies in Georgia 142
- Hospitals and Health Care companies in Michigan 142
- Hospitals and Health Care companies in Virginia 120
- Hospitals and Health Care companies in Missouri 118
- Hospitals and Health Care companies in Minnesota 117
- Hospitals and Health Care companies in Indiana 116
- Hospitals and Health Care companies in Maryland 113
- Hospitals and Health Care companies in Colorado 111
- Hospitals and Health Care companies in Arizona 105
- Hospitals and Health Care companies in Washington State 104
- Hospitals and Health Care companies in Wisconsin 94
- Hospitals and Health Care companies in New York 119
- Hospitals and Health Care companies in Chicago 96