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The 55 largest healthcare providers in Houston

Tamtam tracks 55 healthcare providers headquartered in Houston. This list ranks all of them by number of employees on LinkedIn, led by UT MD Anderson, Houston Methodist and Memorial Hermann Health System. Their median headcount is 588. Half of them were founded in 1982 or later.

馃嚭馃嚫 Houston55 companiesUpdated Nov 2, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
UT MD Andersonmdanderson.org

A leading cancer center focused on patient care, research, education, and prevention, with top rankings in cancer care and a mission to #EndCancer

Hospitals and Health Care 馃嚭馃嚫 Houston 23,100 1944
2
Houston Methodisthoustonmethodist.org

Comprehensive health system with hospitals, research institute, residency programs, outpatient and emergency care centers serving Greater Houston area.

Hospitals and Health Care 馃嚭馃嚫 Houston 22,002 n/a
3
Memorial Hermann Health Systemmemorialhermann.org

Nonprofit health system in Greater Houston area providing patient-centered care with clinical expertise, innovation, and cutting-edge technology for improving health

Hospitals and Health Care 馃嚭馃嚫 Houston 20,118 n/a
4
Baylor College of Medicinebcm.edu

Health sciences university in Texas Medical Center, conducting research, educating medical professionals, and providing healthcare locally and globally

Higher Education 馃嚭馃嚫 Houston 13,584 1900
5
Texas Children's Hospitaltexaschildrenspeople.org

Comprehensive pediatric care, groundbreaking research, family-centered women's health services, and a supportive work environment focused on community health.

Hospitals and Health Care 馃嚭馃嚫 Houston 13,069 1954
6
UTHealth Houstonuth.edu

A leading health science center in Texas, offering a range of accredited programs and faculty practices for patient care in Houston

Hospitals and Health Care 馃嚭馃嚫 Houston 9,157 1972
7
U.S. Physical Therapy, Inc.usph.com

A publicly held company with hundreds of outpatient therapy clinics in 41 states, offering care for orthopedic and neurologic disorders through unique partnerships

Wellness and Fitness Services 馃嚭馃嚫 Houston 4,246 1990
8
HCA Houston Healthcarehcahoustonhealthcare.com

A leading healthcare provider in the greater Houston area, offering a comprehensive network of hospitals, surgery centers, emergency centers, and diagnostic facilities

Hospitals and Health Care 馃嚭馃嚫 Houston 3,934 n/a
9
PT Recruitersptrecruiters.com

A network of nearly 700 private practice clinics nationwide, each maintaining its own unique culture and brand

Wellness and Fitness Services 馃嚭馃嚫 Houston 3,351 n/a
10
St. Luke's Healthstlukeshealth.org

A healthcare system offering top-tier medical programs and facilities, affiliated with prestigious institutions and recognized for nursing excellence

Hospitals and Health Care 馃嚭馃嚫 Houston 2,776 n/a
11
Belmont Village Senior Livingbelmontvillage.com

Integrated developer, owner, and operator of over 30 independent, assisted living, and memory care communities for older adults across the US and Mexico

Hospitals and Health Care 馃嚭馃嚫 Houston 1,831 1997
12
The Harris Center for Mental Health and IDDtheharriscenter.org

This organization provides mental health and intellectual/developmental disability services in Harris County through various programs, including services to individuals in the county jail

Hospitals and Health Care 馃嚭馃嚫 Houston 1,824 1965
13
St. Joseph Medical Centersjmctx.org

A hospital in Houston staffed by 600 board certified physicians and over 1,500 medical professionals, located on the edge of downtown

Hospitals and Health Care 馃嚭馃嚫 Houston 1,288 1887
14
Legacy Community Healthlegacycommunityhealth.org

Comprehensive healthcare system in Texas Gulf Coast region providing primary care, pediatrics, OB/GYN, behavioral health, dental, vision, specialty care, and pharmacy services

Hospitals and Health Care 馃嚭馃嚫 Houston 1,089 1981
15
Empower Pharmacyempowerpharmacy.com

Delivers personalized, high-quality compounded medications, customizing dosages, eliminating allergens, and creating multi-drug combinations, serving healthcare providers and individual patients nationwide and internationally.

Pharmaceutical Manufacturing 馃嚭馃嚫 Houston 1,050 2009
16
Veterans Evaluation Servicesves.com

Provides medical disability exams for veterans and service members, supporting the US Department of Veterans Affairs with high-quality, timely, and accurate services

Hospitals and Health Care 馃嚭馃嚫 Houston 1,005 2011
17
TIRR Memorial Hermannmemorialhermann.org

A leading rehabilitation hospital offering interdisciplinary services for individuals with disabling injuries or illnesses, focused on improving outcomes and maximizing independence through research and advocacy

Hospitals and Health Care 馃嚭馃嚫 Houston 919 1959
18
UT Physiciansutphysicians.com

Leading clinical practice associated with a renowned medical school, offering patient care, education, innovation, and a variety of specialties in Houston

Hospitals and Health Care 馃嚭馃嚫 Houston 875 1995
19
The University of Texas MD Anderson Cancer Centermdanderson.org

A world-renowned cancer center dedicated to patient care, research, education, and prevention with a mission to eliminate cancer through integrated programs

Hospitals and Health Care 馃嚭馃嚫 Houston 872 1941
20
Doctor Office

Hospital & healthcare company located in Houston, Texas, providing medical services and care to patients in the local community

Hospitals and Health Care 馃嚭馃嚫 Houston 840 n/a
21
UT MD ANDERSON CANCER CENTERmdanderson.org

A healthcare organization based in Houston, Texas, focused on cancer treatment and research at their facility on HOLCOMBE BLVD

Hospitals and Health Care 馃嚭馃嚫 Houston 834 n/a
22
Harris County Public Healthpublichealth.harriscountytx.gov

A public health department serving 47 million residents in Harris County, promoting wellness, safety, and diversity through various community-focused initiatives and services

Government Administration 馃嚭馃嚫 Houston 752 n/a
23
PsychPluspsychplus.com

Revolutionizing mental healthcare with accessible, affordable therapy and psychiatry services Offering virtual and in-person care for a variety of mental health conditions

Mental Health Care 馃嚭馃嚫 Houston 629 2019
24
Baylor Geneticsbaylorgenetics.com

A genetics company based in Houston's Texas Medical Center, providing services to clients in 50 states and 16 countries

Biotechnology Research 馃嚭馃嚫 Houston 622 1978
25
Success On The Spectrumsuccessonthespectrum.com

A national franchise providing high quality ABA Therapy to children with Autism Spectrum Disorder, focused on reducing problem behaviors and improving life skills

Mental Health Care 馃嚭馃嚫 Houston 617 2015
26
The Woman's Hospital of Texaswomanshospital.com

Specializing in women's and children's healthcare, our hospital offers expert care in various fields such as breast health, gynecology, obstetrics, and pediatrics

Hospitals and Health Care 馃嚭馃嚫 Houston 609 n/a
27
Children's Memorial Hermann Hospitalmemorialhermann.org

Specialized medical center focusing on prenatal care, diagnostics, and interventions for fetal health and development, offering expert care to expectant parents

Medical Practices 馃嚭馃嚫 Houston 596 n/a
28
Nova Medical Centersconcentra.com

Occupational healthcare provider offering drug testing, physicals, work-injury care, and physical therapy for on-the-job injuries to exceed patient and client expectations

Hospitals and Health Care 馃嚭馃嚫 Houston 588 1992
29
Gulf Coast Bloodgiveblood.org

This nonprofit organization provides a safe and sustainable supply of blood and related services to over 170 healthcare institutions in Texas

Hospitals and Health Care 馃嚭馃嚫 Houston 587 1975
30
DM Clinical Researchdmclinicalresearch.com

A network of clinical trial sites in Houston, Texas connecting research organizations to individuals for medical advancement through physician-conducted studies

Biotechnology Research 馃嚭馃嚫 Houston 561 2006
31
The University of Texas Health Science Center at Houston (UTHealth) School of Dentistrydentistry.uth.edu

A leading dental school offering education, patient care, and research programs in dentistry including DDS, BSDH, MSDH, and specialized degrees

Higher Education 馃嚭馃嚫 Houston 521 1905
32
The Menninger Clinicmenningerclinic.org

A world leader in psychiatric treatment and research, offering comprehensive programs for adults, adolescents, and children with mental illness and addiction

Mental Health Care 馃嚭馃嚫 Houston 495 1925
33
RMIrmiglobalsolutions.com

A solutions partner providing support in complex environments, managing risk through medical, security, and technical services

Professional Services 馃嚭馃嚫 Houston 443 2003
34
Cenikor Foundationcenikor.org

Non-profit substance abuse treatment center providing a full continuum of care for adults and adolescents in Texas and Louisiana Offers sliding scale fees and accepts insurance

Non-profit Organizations 馃嚭馃嚫 Houston 419 1967
35
LifeGiftlifegift.org

Organ procurement organization providing hope by partnering with hospitals to facilitate organ and tissue transplants for patients in need

Hospitals and Health Care 馃嚭馃嚫 Houston 395 1987
36
Houston Eye Associateshoustoneye.com

A leading team of ophthalmologists and optometrists providing comprehensive eye care, specialized treatments, and vision correction services in Houston for over 50 years

Medical Practices 馃嚭馃嚫 Houston 389 1971
37
Texas Medical Centertmc.edu

A leading medical city pioneering patient care, research, education, and prevention with a focus on advancing life sciences and innovation

Hospitals and Health Care 馃嚭馃嚫 Houston 384 1945
38
Nexus Health Systemsnexushealthsystems.com

Specialized hospitals and treatment centers for individuals with complex medical, developmental, behavioral, and mental health issues, guiding patients towards recovery and improved quality of life

Hospitals and Health Care 馃嚭馃嚫 Houston 383 1992
39
Next Level Medicalnextlevelurgentcare.com

Providing urgent medical care for non-life-threatening conditions to all ages in Houston, Austin, San Antonio, and Beaumont areas 7 days a week

Hospitals and Health Care 馃嚭馃嚫 Houston 375 2013
40
DePelchindepelchin.org

We work to improve the mental health and physical well-being of vulnerable children and families in Texas through various programs and services

Individual and Family Services 馃嚭馃嚫 Houston 350 1892
41
HOUSTON METHODIST WILLOWBROOK HOSPITALhoustonmethodist.org

A full-service acute-care hospital in Northwest Houston providing high-quality health care across various specialties in a warm environment

Hospitals and Health Care 馃嚭馃嚫 Houston 346 2000
42
Oncology Consultantsoncologyconsultants.com

A leading adult oncology and hematology practice in Houston, TX specializing in state-of-the-art cancer treatment in a compassionate environment Expanding services in the metropolitan area

Hospitals and Health Care 馃嚭馃嚫 Houston 341 1982
43
Houston Health Departmenthoustonhealth.org

Public health department in Houston, working with the community to promote and protect health, social well-being of residents, and environmental quality

Government Administration 馃嚭馃嚫 Houston 336 n/a
44
The Texas Heart Institute at Baylor College of Medicinetexasheart.org

A non-profit organization focused on advancing cardiovascular health through patient care, research, education, and outreach initiatives led by renowned physicians and scientists

Research Services 馃嚭馃嚫 Houston 334 1962
45
Texas Orthopedic Hospitalwwwprod104-texasorthopedic-sitecore-cloud.dpxmedcity.net

Specialized orthopedic hospital providing high-quality care, with a focus on wellness, mobility, and quick recovery Affiliated with a leading healthcare provider

Hospitals and Health Care 馃嚭馃嚫 Houston 325 n/a
46
Newborn Intensive Care Specialist (NICS)newborndoc.com

Specialty healthcare organization providing top-quality services for ill, premature, or well babies, with a dedicated team of doctors and nurse practitioners

Medical Practices 馃嚭馃嚫 Houston 320 2000
47
IN-HOME ATTENDANT SERVICES, LTD.inhometexas.com

A company based in Houston, Texas, providing in-home attendant services at 2990 Richmond Ave, Suite 325

Home Health Care Services 馃嚭馃嚫 Houston 278 1996
48
The Aspenwood Companytheaspenwoodcompany.com

A boutique manager of premium senior living communities in Texas, Arkansas, North Carolina, and Tennessee

Hospitality 馃嚭馃嚫 Houston 196 n/a
49
University of Houston College of Optometryopt.uh.edu

The company leads in optometry, vision science, and clinical care, with a mission to enhance vision for life with excellence and compassion

Hospitals and Health Care 馃嚭馃嚫 Houston 186 n/a
50
Capitol Imaging Servicescapitolimagingservices.com

A leading outpatient imaging provider in southeast Louisiana, offering innovative services, advanced technology, and high-quality imaging at more affordable prices

Hospitals and Health Care 馃嚭馃嚫 Houston 185 1973
51
ZT Corporateztcorporate.com

A private equity firm established in 1997 with investments in healthcare services and automotive dealerships, driving value creation through collaboration and operational support

Financial Services 馃嚭馃嚫 Houston 120 1997
52
New Teeth Dental Solutionsnewteethtexas.com

A private dental practice committed to providing safe, high-quality care using modern technology, digital imaging, and sterilization practices for lifelong oral health

Hospitals and Health Care 馃嚭馃嚫 Houston 15 1980
53
The MendCentermendcenter.org

The MendCenter provides compassionate care, support, and advocacy for individuals with chronic mental illness, offering specialized treatment plans and innovative services

Mental Health Care 馃嚭馃嚫 Houston 11 2013
54
BayChoice Bariatricsbaychoicebariatrics.com

Weight loss surgery center specializing in personalized care, state-of-the-art procedures, and support to help clients achieve their weight loss goals

Wellness and Fitness Services 馃嚭馃嚫 Houston 3 n/a
55
Holcombe Dental Associatesholcombedental.com

Dedicated dental care provider focused on building relationships with patients, offering quality treatment options for optimal dental health

Medical Practices 馃嚭馃嚫 Houston 2 2002

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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 Nov 2, 2026.

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