Founded: 1991 Employees: 89 2009 revenue: $20.5 million CEO: Paul Millman chroma.com
Manufactures optical filters for use in laboratory equipment.
Chroma fills a third of its job openings from within. To prepare employees for their additional responsibilities, the company sends them on 12-week leadership development programs. Board and steering-committee meetings are open to anyone. The company covers 100 percent of health insurance premiums for both employees and dependents.