Top 10 ranking: No. 5 for retention, No. 6 for benefits, No. 1 for diversity There are health benefits galore at this Tampa, Fla.-based employer, which is part of the National Cancer Institute's elite group of Comprehensive Cancer Centers. Perks include on-site child care, medical benefits, dental insurance, life insurance, long-term disability insurance, prepaid tuition assistance, a pension plan, flexible work hours (including four 10-hour days and work-from-home options), a 403(b) plan and parental leave. There's also a new on-site health care clinic with free services for employees. The clinic can prescribe medications, and it provides evaluation and treatment of minor illnesses and offers monitoring and counseling services to employees with chronic conditions. Plus, all recommended cancer screenings, regardless of where they are performed, are fully covered by the Moffitt health plan. Other health-related perks include over-the-counter medications at no cost, free flu shots for employees and their adult dependents and support for employees who are trying to quit smoking. Training techies: The Moffitt Cancer Center employs a full-time technology training staff and works with off-site training organizations. Some employees attend a national CIO boot camp to help them develop skills they'd need to become CIOs, and others receive special mentoring and coaching assistance and participate in a formal leadership development program for management and nonmanagement staffers.