Illinois is home to a variety of healthcare companies exploring diverse areas such as pharmaceuticals, medical devices, and patient services. From global giants to innovative startups, they ensure the health and wellness of communities with their cutting-edge offerings. These firms contribute significantly to the state's economy, while constantly pushing for advancements in treatments, patient care, and technology. As the healthcare landscape evolves, these companies are at the forefront, exploring effective measures for chronic disease management, wellness promotion, and digital healthcare solutions.


Top 23 healthcare companies in Illinois

1. Abbott

  • Website: abbott.com
  • Headquarters: Abbott Park, Illinois, United States
  • Founded: 1944
  • Headcount: 10001+
  • LinkedIn

Abbott is a global healthcare company that offers a wide range of pharmaceuticals, medical devices, and other products. They focus on developing innovative technologies to improve the health and well-being of people around the world.


2. AbbVie

  • Website: abbvie.com
  • Headquarters: North Chicago, Illinois, United States
  • Founded: 2013
  • Headcount: 10001+
  • LinkedIn

AbbVie is a global pharmaceutical company that strives to meet patient needs at each step of their health journey. They offer patient assistance programs and products that help people access their prescribed therapies in over 175 countries. AbbVie is committed to making a lasting impact and finding answers that make life better for patients and the world.


3. Blue Cross and Blue Shield of Illinois, Montana, New Mexico, Oklahoma & Texas

  • Website: hcsc.com
  • Headquarters: Chicago, Illinois, United States
  • Founded: 1936
  • Headcount: 10001+
  • LinkedIn

Health Care Service Corporation (HCSC) offers a wide variety of health and life insurance products and related services. They are the largest customer-owned health insurance company in the United States.


4. Blue Cross Blue Shield Association

  • Website: bcbs.com
  • Headquarters: Chicago, Illinois, United States
  • Founded: 1910
  • Headcount: 1001-5000
  • LinkedIn

BlueCross Blue Shield is an insurance company that provides health coverage to individuals, families, and businesses. They offer a wide range of health insurance plans and benefits, including medical, dental, and vision coverage.


5. Astellas Pharma US

  • Website: astellas.com
  • Headquarters: Northbrook, Illinois, United States
  • Founded: 2005
  • Headcount: 1001-5000
  • Latest funding type: Grant
  • LinkedIn

Astellas is a global pharmaceutical company dedicated to improving the health of people around the world. They offer innovative solutions and therapies in various therapeutic areas, with a focus on oncology, urology, neuroscience, and immunology.


6. Carle Health

  • Website: carle.org
  • Headquarters: Urbana, Illinois, United States
  • Founded: 1946
  • Headcount: 5001-10000
  • LinkedIn

Carle.org is an integrated health solution that offers a wide range of healthcare services. They provide medical care, surgical procedures, and specialized treatments for various conditions. With a focus on improving quality care for patients, Carle.org also guides medical students at the Carle Illinois College of Medicine, inspiring the next generation of physicians. They prioritize community health initiatives and offer support services for patients and their families.


7. Biolife Plasma Services

Biolifeplasma.com is a company that specializes in plasma collection and processing. They offer plasma donation services to individuals in various locations. With state-of-the-art facilities and highly trained staff, they ensure the safe and efficient collection of plasma for medical purposes.


8. Oak Street Health

  • Website: oakstreethealth.com
  • Headquarters: Chicago, Illinois, United States
  • Founded: 2012
  • Headcount: 1001-5000
  • Latest funding type: Acquired
  • LinkedIn

Oak Street Health is a healthcare company that specializes in providing quality care for Medicare and Medicare Advantage patients. They offer a wide range of medical services and accept various insurance plans. Their centers have community rooms for Medicare education events and social activities to keep patients engaged. Additionally, some centers have pharmacies and transportation services. Oak Street Health focuses on personalized care and ensuring patients have a positive experience with their doctors.


9. AIM Specialty Health

AIM Specialty Health is the leading specialty benefits management partner for healthcare organizations. They promote appropriate, safe, and affordable healthcare by improving the quality of care and reducing costs for complex tests and treatments.


10. WellNow Urgent Care

  • Website: wellnow.com
  • Headquarters: Chicago, Illinois, United States
  • Founded: 2012
  • Headcount: 1001-5000
  • LinkedIn

WellNow is an urgent care provider that offers a range of medical services including virtual care, allergy treatment, occupational medicine, injury care, physicals, and additional on-site programs. With multiple centers across various locations, WellNow aims to provide convenient and accessible healthcare services.


11. DuPage Medical Group

Duly Health and Care is a healthcare company based in Downers Grove, Illinois. They offer a range of services including medical care, virtual visits, insurance acceptance, patient resources, and educational events. Their focus is on providing high-quality healthcare services to their customers.


12. Palos Health

  • Website: paloshealth.com
  • Headquarters: Palos Heights, Illinois, United States
  • Founded: 1972
  • Headcount: 1001-5000
  • LinkedIn

Palos Health is a company that offers healthcare services to patients in the Palos Heights area. They provide a wide range of medical treatments and procedures, including surgery, diagnostic testing, and emergency care.


13. RML Specialty Hospital

RML Specialty Hospital provides quality and compassionate care to patients suffering from prolonged, severe illnesses. They offer specialized services such as COVID-Care, organ transplant support, stroke rehabilitation, ventilator weaning, and wound management.


14. CGH Medical Center

  • Website: cghmc.com
  • Headquarters: Sterling, Illinois, United States
  • Founded: 1909
  • Headcount: 1001-5000
  • LinkedIn

CGH Medical Center is a healthcare organization that provides a wide range of medical services to the community. They offer cardiology, cardiac rehabilitation, cancer care, chiropractic care, dermatology, and many other specialty services. CGH Medical Center is committed to providing high-quality patient care and improving the health of the community.


15. IlliniCare Health

Aetna Better Health is a company that offers health plans and services to improve overall wellness and everyday life. They aim to be a trusted health partner in the local communities they serve.


16. Clinical Investigation Specialists (CIS)

Clinical Investigation Services (CIS) is a robust clinical research center that conducts Phases I-IV clinical studies for the fields of pharmaceutical and biotechnology. With over 30 years of experience, CIS is dedicated to a healthier tomorrow, offering patients the opportunity to play a role in their healthcare, access new research treatments, and contribute to medical research.


17. Clarus Therapeutics

  • Website: clarustherapeutics.com
  • Headquarters: Northbrook, Illinois, United States
  • Founded: 2004
  • Headcount: 11-50
  • Latest funding type: Post Ipo Equity
  • LinkedIn

Clarus Therapeutics is a pharmaceutical company focused on developing and providing innovative therapies to address unmet medical needs. They specialize in androgen replacement and metabolic therapies, aiming to improve the treatment journey for patients. With a comprehensive and breakthrough approach, they are dedicated to championing patient health and creating positive health experiences.


18. Passport Health Illinois and Wisconsin

Passport Health provides travel health services and vaccinations for international travelers. Their services include routine vaccinations, travel insurance, physician referral program, and an online store. They are experts in COVID-19 restrictions and vaccination requirements for various destinations.


19. Prenosis

  • Website: prenosis.com
  • Headquarters: Chicago, Illinois, United States
  • Founded: 2014
  • Headcount: 11-50
  • Latest funding type: Series Unknown
  • LinkedIn

Prenosis is a medical technology company that utilizes advanced machine learning algorithms to decode a patient's individual immune profile and predict future outcomes based on a database of historical patient data. They provide physicians with real-time information to improve outcomes and reduce hospital costs.


20. Chicago Research Center, INC

Chicago Research Center is an independent clinical research center specializing in phase I-IV clinical trials for the pharmaceutical and biotechnology industries in sleep, general medicine, pain, memory, and mood disorders.


21. The Reimbursement Group

  • Website: trgltd.com
  • Headquarters: Chicago, Illinois, United States
  • Founded: 2007
  • Headcount: 11-50
  • LinkedIn

TRGLTD is a reimbursement management company that provides tactical and strategic services for new technology biologics and medical devices. They specialize in recognizing barriers to adoption, supporting valuation of a new product, and developing the necessary framework for expedited payor adoption.


22. LabTemps - Scientific Staffing - a Messina Group Company

  • Website: labtemps.com
  • Headquarters: Chicago, Illinois, United States
  • Founded: 1989
  • Headcount: 51-200
  • LinkedIn

LabTemps is a staffing and recruiting firm specializing in providing highly vetted scientific professionals to clients in a variety of industries nationwide.


23. Planet Pharma

Planet Pharma is a global consulting firm specializing in providing solutions to the pharmaceutical, biotechnology, and medical device industries. They offer a range of services including executive search, career services, and consulting. With a focus on excellence, they provide expertise and support to their clients to help drive success in the rapidly evolving healthcare industry.


Want to find more healthcare companies?


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