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Grace Cimaszewski
FounderCTO at Crosslayer Labs
New York, New York, United States
FoundedCrosslayer Labs · YC
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About
Grace Cimaszewski holds a PhD from Princeton and has conducted security research on TLS certificate security, contributing to standards adopted by the CA/Browser Forum. She previously held research positions at Google and Corelight Labs before founding Crosslayer Labs with fellow researchers.
CTO at Crosslayer LabsYC W26
Intro paths
Grace went through Y Combinator (Winter 2026) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Tyler Bosmeny, General Partner at Y Combinator — the partner who ran Crosslayer Labs's batch and knows the company first-hand. YC profile ↗
In turn, Grace can intro founders to Crosslayer Labs's investors below.
Crosslayer Labs's investors · 12
Co-founders at Crosslayer Labs
Frequently asked questions
- Who is Grace Cimaszewski?
- Grace Cimaszewski holds a PhD from Princeton and has conducted security research on TLS certificate security, contributing to standards adopted by the CA/Browser Forum. She previously held research positions at Google and Corelight Labs before founding Crosslayer Labs with fellow researchers.
- Where does Grace Cimaszewski work?
- Grace Cimaszewski is CTO of Crosslayer Labs.
- What companies did Grace Cimaszewski found?
- Grace Cimaszewski founded Crosslayer Labs.
Founder mafias
Y Combinator mafia10,594
Also came through, then founded or led a company.
Google mafia1,712
Also came through, then founded or led a company.
Cornell mafia681
Also came through, then founded or led a company.
Goldman Sachs mafia651
Also came through, then founded or led a company.
Capital One mafia136
Also came through, then founded or led a company.
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