Alliant Insurance Services, Inc.

Alliant Insurance Services, Inc. is the nation's fifth-largest insurance broker and consulting firm. Founded in 1925, the company has grown to employ more than 14,000 people across over 100 offices nationwide. It reports year-over-year growth of nearly 30%.

As a majority employee-owned organization, Alliant's structure is designed to give industry leaders autonomy to innovate. The firm's core business involves transforming how organizations approach risk management, positioning it as a catalyst for client growth. Its work spans insurance brokering and consulting.