Mercy Health System (Janesville, Wis.). Over the last 25 years, Mercy Health System has grown from a standalone hospital to an integrated health system with 70 facilities serving communities throughout southern Wisconsin and northern Illinois. The health system sees more than 1.2 million patients annually and has about 4,000 employees. Mercy Health offers its employees a range of benefits, including tuition reimbursement, scholarship programs, wellness programs, off-site fitness center discounts and career mentoring. In 2016, the National Association of Female Executives named Mercy Health System one of its "Top 10 Nonprofit Companies for Executive Women."