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Fernstone

Active

AI-native insurance brokerage.

Fall 2025Founded 20252 peopleNew York City, NY, USA

About

Fernstone is an AI-native insurance brokerage: we combine AI with licensed brokers to obtain complex insurance faster, and at better terms. Today, we manage risk for 100+ businesses in construction, security, and the trades.

Founders ยท 2

James Chen
James ChenCo-founder
BCG

Building Fernstone. Previously created and led the Enterprise function at Traba (Series A), growing it from 0 to 25% of company revenue. Ex BCG and UChicago. Former debate champion, ranked #1 in the USA out of 10,000 teams.

Bryant Le
Bryant LeCo-Founder
Google

Building Fernstone. Former Engineering @ Google and SentiLink (Series B, a16z). Previously Vanderbilt Applied Math / CS.

Launch

Launched on Y Combinator ยท Oct 2025
View launch post โ†—

Find better insurance coverage for your business faster.

Fernstone combines AI with licensed brokers-in-the-loop to automate the insurance quote process, speeding up finding and binding coverage for complex business risks and issuing COIs. They announce early customers and their team as experienced brokers and engineers seeking faster, more effective brokerage.

Formerly โ€œSentri Securityโ€, โ€œSentriโ€

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