AHA's logo for Best Nonprofits to Work For 2016The American Heart Association is among the 100 Best Workplaces for Millennials and the 20 Best Workplaces for Baby Boomers, according to Fortune rankings released Tuesday.

The awards “demonstrate once again that the AHA is a welcoming place where we are all committed not only to saving lives, but to supporting and nurturing personal development and growth and the wealth of ideas, life experiences and strengths of our wonderfully diverse and talented staff,” wrote AHA CEO Nancy Brown in an email to staff.

The organization ranked No. 13 for baby boomers and No. 95 for millennials.

To calculate the lists, employees from more than 600 companies provided anonymous input that was scored and compared to a standard for organizations of the same size. Nearly 34,000 baby boomers and more than 88,000 millennial employees were surveyed nationwide. Employees offered feedback about topics such as advancement opportunities, pride in their work and the ability to invest in their lives outside work.

In April, Fortune named AHA one of the Best Workplaces in Health Care.