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Marsh Risk Broker Sierra Zwarg Recognized as a 2026 Cyber Power Broker

Topics: Cyber

Sierra Zwarg, VP, Cyber Advisor, Marsh Risk

Sierra Zwarg
VP, Cyber Advisor
Marsh, San Francisco

Empathy is at the core of Sierra Zwarg’s brokering philosophy. For her, it isn’t enough to achieve what  most would consider a “good” result on pricing; it’s about ensuring the client acquires the most substantial protections possible. In the case of one health system, Zwarg was put in a challenging position when the incumbent insurer’s options were either a 25% premium increase and 50% retention increase, or 21% premium increase and 100% retention increase. Zwarg negotiated better pricing by highlighting underwriting strengths and the carrier’s long relationship with the client.

Yet even then, she wasn’t satisfied: Zwarg restructured the program by reducing the incumbent’s limits and building excess with alternative markets to improve the renewal terms. Taking things a step further, she weeded through the coverage details and found minor changes that gave the underwriter the ability to provide more premium relief as potential options for the client. She then negotiated coverage enhancements with a new market being added to the program for no additional premium. Health care and technology industries typically rank highest in terms of frequency of cyber losses, and client Agilon Health faced a substantial premium increase at renewal.

“Sierra improved the efficiency and clarity of our claims process by eliminating the quota share structure, a meaningful operational benefit,” said Amy Strauss, senior corporate counsel, employment & litigation.

All 2026 Power Broker Winners

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What is a Power Broker?

A Risk & Insurance Power Broker® is an individual who stands out among their peers for the exceptional client work they have delivered over the past year. While brokers play many key roles in the insurance industry and risk profession, a Power Broker® award recognizes problem solving, customer service and industry knowledge.

Our goal is to broadly recognize and promote outstanding risk management and customer service among the brokerage community.

Who selects the winners?

Power Brokers are selected by risk managers based on the strength of the testimonials they provide to a team of 15 Risk & Insurance editors and writers.

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