Alliant Insurance Services
Insurance Agencies and BrokeragesCalifornia, United States5001-10000 Employees
Alliant Insurance Services is among the largest U.S. insurance brokerage and consulting firms, with headquarters in Irvine, California. It serves a broad client base across multiple industry sectors, providing brokerage and advisory services designed to help clients navigate varied market conditions. Built on teamwork and collaboration for a century, the company emphasizes investing in its people and sustaining long-term client partnerships. Recent developments illustrate continued expansion of its advisory capabilities, including the launch of Retirement & Wealth at Alliant to integrate retirement planning with individual wealth advisory services. In 2026, the firm also added leaders to its Employee Benefits Group, reflecting growth in its benefits consulting and related services.