Alliant Insurance Services Climbs to #4 on U.S. Brokers List
Event summary
- Alliant moved up to #4 on Business Insurance’s list of the 100 Largest U.S. Brokers, with $5.7B in revenue and $55B in premiums for 2025.
- The company also retained its #1 spot on the Largest Privately Owned Brokers list.
- CEO Greg Zimmer attributed the rise to specialized solutions at scale and entrepreneurial talent retention.
The big picture
Alliant’s ascent reflects a broader trend of privately owned brokers gaining market share through specialized services and entrepreneurial talent models. The company’s employee-owned structure may provide an edge in attracting top-tier brokerage professionals, but scaling further will require balancing autonomy with centralized growth strategies.
What we're watching
- Scale Dynamics
- How Alliant’s $5.7B revenue and $55B in premiums will influence its competitive positioning against larger publicly traded brokers.
- Talent Retention
- Whether the company can sustain its high producer retention rate amid industry-wide talent wars.
- Expansion Strategy
- The pace at which Alliant will integrate new capabilities to navigate complex risk environments for clients.
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