Fernstone
YC F25New York City, US · Founded 2025 · 2 employees · 2 known investors
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Fernstone is an insurance brokerage that provides risk management services and coverage administration for businesses through a unified platform. The platform enables customers to manage certificates of insurance, claims, policies, and compliance across multiple carriers.
Also known as Sentri · Sentri Security
Founders & leadership· Y Combinator alumni (F25)
Fernstone was founded in 2025 by James Chen and Bryant Le.

Investors · 2
Funding
SEC filings, press & company announcements$1.5M disclosed across 1 round · 2026
- $1.5MPre-SeedJan 2026Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Competitors · 1
by search overlapCompanies competing with Fernstone for the same Google search keywords, organic and paid, via search-intersection analysis.
In the news
Frequently asked questions
- What does Fernstone do?
- Fernstone is an insurance brokerage that provides risk management services and coverage administration for businesses through a unified platform. The platform enables customers to manage certificates of insurance, claims, policies, and compliance across multiple carriers.
- Who founded Fernstone?
- Fernstone was founded by James Chen, Bryant Le in 2025.
- Who are Fernstone's investors?
- Fernstone's investors include Neer Venture Partners, Y Combinator.
- How much funding has Fernstone raised?
- Fernstone has disclosed $1.5M raised across 1 round.
- Where is Fernstone headquartered?
- Fernstone is headquartered in New York City, US.




