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SubImage

YC W25

San Francisco, US · Founded 2024 · 4 employees · Hiring · 4 known investors

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SubImage maps cloud, SaaS, and on-prem infrastructure into a single graph to show security teams what is exposed, misconfigured, and needs fixing first. It offers a managed CNAPP built on the open-source Cartography security graph, connecting via a read-only agentless API and integrating with SIEM, SOAR, and ticketing systems.

Cloud ComputingCybersecurityEnterprise SoftwareSaaSUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (W25)

SubImage was founded in 2024 by Alex Chantavy and Kunaal Sikka.

ACAlex Chantavy
Alex ChantavyCo-founder & CEOPreviously, he was a staff engineer at Lyft where he developed an open source security graph tool, and a security engineer on Microsoft's Red Team focused on cloud security. He has also held positions in security and infrastructure roles at the NSA.
KSKunaal Sikka
Kunaal SikkaCo-founder & PresidentHe previously worked as a Member of Technical Staff at Anthropic and as a Staff Engineer at Lyft, where he built security infrastructure including SIEM, insider threat detection, and vulnerability management systems. He holds a degree in computer science from the University of Washington.

Investors · 4

FundersClublisted by FundersClubSan Francisco · $290K

How we know: a partner's Signal profile · funding news · Y Combinator's founder network · Not right? Tell us

Transpose Platform Managementlisted by Transpose Platform ManagementSan Francisco

How we know: Transpose Platform Management's portfolio page · Y Combinator's founder network · Not right? Tell us

Y Combinatorlisted by Y CombinatorSan Francisco · $500K

How we know: the Y Combinator directory · funding news · open dataset · 5k.vc investor directory · Not right? Tell us

Aliaksandr Hudzilinreported

How we know: Y Combinator's founder network · Not right? Tell us

Funding

SEC filings, press & company announcements

$4.2M disclosed across 1 of 3 rounds · 2025

Source: company announcements and press reports — follow each round's link for the claim.

Images

SubImage photo

Related companies · 1

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Companies working in the same space as SubImage.

Legal entities · 1

corporate structure
SubImage Inc.

In the news

SubImage Raises $4.2 Million in Seed Roundthesaasnews.com · Nov 2025SubImage Raises $4.2M to Map the Cloud and Secure Everythingfinance.yahoo.com · Nov 2025We've raised $4.2Msubimage.io · Oct 2025SubImage: Software that maps your infrastructureycombinator.com · Feb 2025

Frequently asked questions

What does SubImage do?
SubImage maps cloud, SaaS, and on-prem infrastructure into a single graph to show security teams what is exposed, misconfigured, and needs fixing first. It offers a managed CNAPP built on the open-source Cartography security graph, connecting via a read-only agentless API and integrating with SIEM, SOAR, and ticketing systems.
Who founded SubImage?
SubImage was founded by Alex Chantavy, Kunaal Sikka in 2024.
Who are SubImage's investors?
SubImage's investors include FundersClub, Transpose Platform Management, Y Combinator, Aliaksandr Hudzilin.
How much funding has SubImage raised?
SubImage has disclosed $4.2M raised across 1 of its 3 known rounds.
Where is SubImage headquartered?
SubImage is headquartered in San Francisco, US.