Fortune on Monday released its 2021 list of the "100 Best Companies to Work For," and 15 health care companies made the list.

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About the list

Since 1998, Fortune and Great Place to Work have partnered to produce the annual rankings.

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According to Fortune and Great Place to Work, this year's process paid special attention to how employees' experiences varied based on their job role, gender, race/ethnicity, payroll status, and other characteristics. Accordingly, Fortune and Great Place to Work changed the methodology for the list to account for these areas of focus.

Specifically, Fortune analyzed essays from each company on the actions they took in response to the challenges of 2020, and it collected more than 100 data points on employee demographics and HR programs and practices. Fortune then weighted 40% of each company's score on how the company supported their people and communities.

To determine the remaining 60% of the score, Great Place to Work conducted confidential surveys of more than 500,000 employees asking how trustworthy, caring, and fair their companies are in times of crises; how employees' physical, emotional, and financial health were faring; and the company's broader community impact.

Ultimately, Cisco was named as the No. 1 overall company to work for on this year's list.

The health care companies on this year's list

Texas Health Resources, an Advisory Board member, was the highest-ranked health system, at No. 7.

The other hospitals and health systems that ranked among the 100 companies are:

1. Northwell Health* (New Hyde Park, New York);
2. Southern Ohio Medical Center* (Portsmouth, Ohio);
3. Baptist Health South Florida* (Coral Gables, Florida);
4. OhioHealth* (Columbus, Ohio);
5. Atlantic Health System (Morristown, New Jersey);
6. BayCare Health System* (Clearwater, Florida);
7. Scripps Health* (San Diego); and
8. Wellstar Health System* (Marietta, Georgia).

*denotes Advisory Board member

Other health care companies that made the list include:

1. Horizon Therapeutics* (Deerfield, Illinois);
2. Regeneron Pharmaceuticals* (Tarrytown, New York);
3. Genentech* (San Francisco);
4. AbbVie* (Chicago);
5. Stryker* (Kalamazoo, Michigan);
6. Plante Moran* (Southfield, Michigan);
7. Brightview Senior Living (Baltimore); and
8. Merck* (Kenilworth, New Jersey).

*denotes Advisory Board member

(Fortune/Great Place to Work, "100 Best Companies to Work For," accessed 4/12; Fortune/Great Place to Work, "100 Best Companies to Work For" methodology, accessed 4/12)