| # | Company | Employees |
|---|---|---|
| 1 |
Ascensionhealthcare.ascension.org
A faith-based healthcare organization focused on providing compassionate care to those in need across the US through various services and programs |
66,381 |
| 2 |
Centene Corporationcentene.com
Providing affordable, high-quality healthcare plans for Medicaid, Medicare, and marketplace members, focusing on under-insured and uninsured individuals nationwide. |
36,022 |
| 3 |
BJC Healthbjc.org
One of the largest nonprofit health care organizations in the US, focused on providing a wide range of healthcare services in St Louis and southern Illinois regions |
29,641 |
| 4 |
SSM Healthssmhealth.com
Not-for-profit healthcare system providing hospitals, physician offices, outpatient, virtual care, home care, hospice, pharmacy, insurance, and accountable care services. |
19,955 |
| 5 |
Express Scripts Pharmacy Benefit Servicesevernorth.com
Creation and management of prescription benefit programs aimed at reducing costs for members, health plans, employers, and agencies. |
12,361 |
| 6 |
Washington University School of Medicine in St. Louismedicine.washu.edu
A prestigious medical school renowned for patient care, research, and education, offering top-ranked programs in medicine, science, and healthcare fields |
7,517 |
| 7 |
Evernorth Health Servicesevernorth.com
Provider of adaptable pharmacy, care, and benefit services aiming to advance organizations and individuals through connected solutions |
7,188 |
| 8 |
Barnes-Jewish Hospitalbarnesjewish.org
Flagship hospital of BJC HealthCare offering advanced cancer treatment through the only National Cancer Institute-designated Comprehensive Cancer Center in Missouri. |
6,733 |
| 9 |
Accredo Specialty Pharmacyaccredo.com
specialty pharmacy providing personalized care and medication management for patients with chronic, complex, and rare conditions through expert clinical teams |
3,599 |
| 10 |
St. Louis Children's Hospitalstlouischildrens.org
A leading pediatric teaching hospital offering comprehensive medical care, education, and injury-prevention programs with a team dedicated to children's well-being |
2,635 |
| 11 |
EmpowerMe Wellnessempowerme.com
A healthcare provider in senior living, offering on-site therapy and pharmacy services nationwide, focused on improving the lives of seniors |
1,696 |
| 12 |
SSM Health Saint Louis University Hospitalssmhealth.com
An academic medical center affiliated with Saint Louis University School of Medicine, offering cutting-edge treatments, research, and compassionate care to patients |
1,563 |
| 13 |
St. Anthony's Medical Centermercy.net
A leading medical center providing advanced medical treatment in various specialties and services to communities in Missouri and Illinois Staffed by skilled professionals |
1,542 |
| 14 |
Missouri Baptist Medical Centermissouribaptist.org
A member of BJC HealthCare, providing world-class medical treatments, innovative technology, and career development opportunities in a compassionate environment |
1,486 |
| 15 |
EyeCare Partnerseyecare-partners.com
EyeCare Partners is dedicated to reinventing eye care by uniting optometry and ophthalmology practices to provide high-quality, accessible, and personalized vision health solutions nationwide |
1,457 |
| 16 |
SSM Health St. Louisssmhealth.com
A Catholic, not-for-profit health system known for using quality measures to improve care, with hospitals and facilities in the St Louis region |
1,314 |
| 17 |
BJC HealthCarebjc.org
Nonprofit healthcare organization providing integrated hospital services, focusing on community health, innovation, education, and exceptional patient care across Missouri and Illinois. |
1,279 |
| 18 |
Ascension Technologiesascension.org
A healthcare IT services organization leveraging technology for collaborative solutions, enhancing user experience, and strengthening cybersecurity to support community health |
1,233 |
| 19 |
Cedarhurst Senior Livingcedarhurstliving.com
Experienced operator of senior living communities offering Independent Living, Assisted Living, Personal Care, and Memory Care services across multiple states Mission to create supportive communities |
842 |
| 20 |
BJC Medical Groupbjc.org
A healthcare group with over 600 doctors providing personalized care in St Louis, mid-Missouri, and southern Illinois, backed by top resources and recognized as a top workplace |
836 |
| 21 |
SSM Health Cardinal Glennon Children's Hospitalssmhealth.com
A non-profit Catholic pediatric hospital providing high-quality care to children with complex conditions, located in St Louis, MO |
824 |
| 22 |
nimble solutionsnimblercm.com
National Medical Billing Services provides sophisticated revenue cycle management for surgical practices, offering consultation, trust, industry insights, and analytics for maximizing revenue |
662 |
| 23 |
The Resource Group, Spend Management Solutionstheresourcegroup.com
Specializing in non-payroll spend management, The Resource Group focuses on sustainable processes, change management, sourcing, analytics, and process improvement to lower healthcare costs |
603 |
| 24 |
Bethesda Health Groupbethesdahealth.org
A St Louis-based organization specializing in premier senior care and services for over a century, dedicated to successful aging through compassion and innovation |
451 |
| 25 |
Christian Hospital and Northwest HealthCarechristianhospital.org
Health care organization providing top-quality medical care in St Louis, with expert staff, advanced technology, and a focus on emergency medicine, surgery, and specialty services |
433 |
| 26 |
himagine solutions inc.omegahms.com
A global healthcare management services provider offering outsourced revenue cycle management solutions, medical coding, billing, clinical communication, and payer administrative services |
430 |
| 27 |
Allegro Living, LLCallegroliving.com
Allegro creates vibrant senior living communities with personalized amenities and activities, focusing on inspired experiences, honesty, compassion, and excellence |
406 |
| 28 |
Ascension Livingascensionliving.org
A leading not-for-profit senior living provider with 50+ communities in 12 states, dedicated to compassionate care and innovation in healthcare |
371 |
| 29 |
EverTrueevertrueliving.org
Nonprofit organization empowering older adults to live fully with faith-centered support, continuing a 165-year legacy of service and innovation. |
363 |
| 30 |
Solaritysolarityhealth.com
Revolutionizing healthcare delivery by intelligently analyzing patient data from any source to facilitate faster and more informed clinical decisions |
330 |
| 31 |
Total Access Urgent Caretotalaccessurgentcare.com
Provides walk-in medical services, including X-rays, CT scans, EKGs, lab tests, IVs, suturing, and fracture care, every day from 8 AM to 8 PM. |
323 |
| 32 |
Express Scripts Pharmacyexpress-scripts.com
A dedicated pharmacy that delivers prescriptions to your door, offering 24/7 pharmacist availability and prioritizing your wellbeing |
284 |
| 33 |
Cooperative Home Carecooperativehomecare.com
Family-owned home care company offering comprehensive services, ensuring clients qualify for all care options and meeting diverse needs with core values |
253 |
| 34 |
Signature Medical Groupsignaturemedicalgroup.com
A leading multi-specialty medical group in Missouri and Kansas, offering a full range of medical and surgical specialties with over 135 highly respected physicians |
193 |
| 35 |
Advantage Nursing Services - Pediatric Home Careadvantage-nursing.com
Specializing in pediatric homecare, this company provides skilled nursing services to medically fragile children in the bi-state area, accepting private insurances and state Medicaid programs |
181 |
| 36 |
Reliant Care Management Company, LLCreliantcaremgmt.com
Specializing in long term healthcare provision, we assist independent healthcare facilities in Missouri and Illinois to deliver exceptional care services |
172 |
| 37 |
SteadyMDsteadymd.com
This company provides telehealth solutions for various healthcare organizations, offering a clinician workforce, operations, licensing, legal guidance, and technology expertise |
172 |
| 38 |
SLUCare Physician Groupssmhealth.com
Academic medical practice affiliated with Saint Louis University, employing over 600 healthcare providers across 50 specialties, known for research and innovation |
166 |
| 39 |
Betty Jean Kerr People's Health Centersphcenters.org
Provider of culturally sensitive quality health care with dignity, respect, and compassion High-performance organization with competent professionals committed to customer service principles |
159 |
| 40 |
Veterans Home Care LLCveteranshomecare.com
Family-owned company offering VetAssist Program for wartime veterans/surviving spouses to access VA benefits and home care Also provides technology for virtual care options |
145 |
| 41 |
Algonquin Nurses Home Health Carealgonquinnursesstl.com
Providing professional home health care services in St Louis since 1987 Family-owned with well-trained staff delivering top-notch care in the region |
32 |
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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 9, 2026.
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