About StayWell

About The StayWell Company LLC

The StayWell Company LLC (“STAYWELL”) is a portfolio company of Vestar Capital Partners, who has a significant minority stake in STAYWELL. Healthcare Services & Solutions, LLC, a wholly owned subsidiary of Merck & Co., Inc., Kenilworth, New Jersey, U.S.A. (“Merck”), has a majority stake in STAYWELL. STAYWELL operates as an independent entity.

STAYWELL is passionate about helping people engage in their health and live well. Our business is led by a mission-driven team with a unique blend of population health and wellness, patient education and health communications and engagement expertise, and some of the industry’s most credible and widely published behavior change theorists. For information on STAYWELL executive or senior management team, please visit StayWell Leadership Team.


STAYWELL is a health engagement company that helps its clients engage and educate people to improve health and business results. STAYWELL brings decades of experience working across the health care industry to design solutions that address its clients’ evolving needs. We fuse expertise in health engagement and the science of behavior change with an integrated portfolio of solutions and robust content assets to effectively engage people to make positive health care decisions.

STAYWELL programs have received numerous top industry honors, including the C. Everett Koop National Health Award and the Web Health Award for health engagement programs. STAYWELL also has received URAC and NCQA accreditation for several of its programs. STAYWELL is headquartered in Yardley, Pennsylvania, and also has major locations in Utah (Murray), NC (Greensboro), GA (Atlanta), CA (San Francisco), and MN (St. Paul). To learn more, please visit www.staywell.com

About Vestar Capital Partners

Vestar Capital Partners has a significant "minority" stake in STAYWELL. Vestar Capital Partners is a leading middle-market private equity firm specializing in management buyouts, recapitalizations and growth equity investments. Headquartered in New York, with offices in Denver and Boston, Vestar invests in companies with valuations from $100 million to $1 billion. Since its founding in 1988, Vestar has maintained a prudent, long-term approach to investing that has served us well throughout numerous business and economic cycles.  Vestar has completed 80+ investments in companies – as well as more than 200 add-on acquisitions – with a total value of approximately $50 billion. For more information, please visit www.vestarcapital.com

About Healthcare Services & Solutions, LLC

Healthcare Services & Solutions, LLC (HSS) has a "majority" stake in STAYWELL. HSS was created as a subsidiary of Merck & Co., Inc., Kenilworth, NJ, USA, that operates separately from the pharmaceutical business as an independent entity. This enables HSS to build on a rich legacy and explore new opportunities in human healthcare while leveraging the company's corporate capabilities in the healthcare industry, science, regulatory affairs and outcomes research. Doing so allows HSS to develop and commercialize global value-added services and solutions with an evidence-based approach – HSS works with the same rigor that is applied to developing and testing medicines and vaccines. For more information, please visit www.healthcareservicesandsolutions.com

About Merck

For 125 years, Merck has been a global health care leader working to help the world be well. Merck is known as MSD outside the United States and Canada. Through Merck prescription medicines, vaccines, biologic therapies, and animal health products, the company works with customers and operates in more than 140 countries to deliver innovative health solutions. Merck also demonstrate our commitment to increasing access to health care through far-reaching policies, programs, and partnerships. For more information, please visit www.merck.com.

Forward-looking statement of Merck & Co., Inc., Kenilworth, N.J., USA

Information on Merck & Co., Inc., Kenilworth, N.J., USA (the “company”) includes “forward-looking statements” within the meaning of the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995. These statements are based upon the current beliefs and expectations of the company’s management and are subject to significant risks and uncertainties. If underlying assumptions prove inaccurate or risks or uncertainties materialize, actual results may differ materially from those set forth in the forward-looking statements.

Risks and uncertainties include but are not limited to, general industry conditions and competition; general economic factors, including interest rate and currency exchange rate fluctuations; the impact of pharmaceutical industry regulation and health care legislation in the United States and internationally; global trends toward health care cost containment; technological advances, new products and patents attained by competitors; challenges inherent in new product development, including obtaining regulatory approval; the company’s ability to accurately predict future market conditions; manufacturing difficulties or delays; financial instability of international economies and sovereign risk; dependence on the effectiveness of the companies’ patents and other protections for innovative products; and the exposure to litigation, including patent litigation, and/or regulatory actions.

The company undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events or otherwise. Additional factors that could cause results to differ materially from those described in the forward-looking statements can be found in the company’s 2015 Annual Report on Form 10-K and the company’s other filings with the Securities and Exchange Commission (SEC) available at the SEC’s Internet site (www.sec.gov).

About StayWell Consumer Health Library

StayWell Consumer Health Library (also known as CHL or StayWell Solutions® Online) provides the following services:

  • A library of diseases and conditions

  • A library of clinical lab tests and clinical procedures

  • A database of information about tests and immunizations recommended by age group and gender

  • A drug reference library covering prescription and over-the-counter drugs

  • A database of consumer-oriented health and wellness articles

  • A database on nutritional facts and values of commonly used foods

  • A database of commonly used herbs, vitamins and supplements

  • A healthy recipes database

  • Daily health news

  • Healthy Living modules including information on blood pressure, smoking, stress and weight

  • Health Center modules including information on asthma, diabetes, heart health, and pregnancy and childbirth

  • Your Family content modules directed to men, women, parents, and older adults

  • Multimedia library on various health topics

  • Interactive tools including calculators, risk assessments, quizzes, symptom checker and care guides

To discover the wide range of products and services STAYWELL provides, visit www.staywell.com.

General Inquiries or Information

Please email us at help@staywell.com or call 800-203-7902 and select Option #4 for additional information about STAYWELL and its products.



800 Township Line Road

Yardley, PA 19067

Tel: 267-685-2800



Reviewed and Approved by the Quality Oversight Committee: October 2018

Revised: October 2018

Date Last Reviewed: 10/4/2018

© 2000-2022 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.