Location: Brookings and Sioux Falls, S.D.
Assets: $2.1 billion
President and CEO: Kevin Tetzlaff (Brookings bank unit) and Brian Thompson (Sioux Falls bank unit)
Popular with employees: On-site childcare is available at the Brookings location, and the children sometimes come through the office to visit employees, which adds fun to the workday.
Fitness/wellness program: Employees win prizes for participating in a yearlong program that encourages healthy eating habits and exercise.
Community service initiative: Each year First Bank puts about 5% of its profits into a special fund to support organizations that improve the community, whether by helping local youth or promoting the arts and education. Its donations totaled about $1.3 million last year.