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SubImage (YC W25) — The Open-Core security graph

SubImage builds maps of your infrastructure to give you visibility on what assets you have and how they relate to each other. This enables any security team to deeply understand their environments and reduce risk.

SubImage is a Y Combinator company in the Winter 2025 batch. Its directory entry describes it as: The Open-Core Security Graph. The founders listed are Alex Chantavy (Founder/CEO), Kunaal Sikka (Founder/President) (Y Combinator directory entry, January 13, 2025).

6 more companies from YC Winter 2025 ↓

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SubImage

New accelerator entry · 2025-01-13 · the record

Winter 2025
batch
4
people
Early
stage
United States of America
region
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What the record says

BatchWinter 2025
Announced2025-01-13
StageEarly
StatusActive
Team size4
IndustryB2B
Sub-industryB2B -> Security
RegionsUnited States of America, America / Canada
BasedSan Francisco, CA, USA
HiringYes
Sitehttps://subimage.io
Founded2024
YC group partnerGustaf Alstromer
Launches posted on YC1
Open roles listed1

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More on SubImage and the records around it.

Also in YC Winter 2025

Same batch, B2B first.

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In their words

SubImage builds maps of your infrastructure to give you visibility on what assets you have and how they relate to each other. This enables any security team to deeply understand their environments and reduce risk. SubImage is a managed offering built around the Cartography open-source project, and is founded by members of Cartography's original team.

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Example from a real report (our sample on Target): “In March 2026, Target announced a planned incremental $1 billion operating investment” Source: Target Corporation (press release)

A Full Report on SubImage: verified, sourced, every claim cited, ready in a few minutes. See pricing.

What the Full Report on SubImage covers

  1. The Short Answer

  2. Which Company This Is

  3. What They Do, And How The Money Works

  4. Who Runs It, And How To Reach Them

  5. The Money: Funding, Valuation, Runway

  6. Who Pays Them, And Who They Are Up Against

  7. Warning Bells

  8. Sources

    12 cited sources found

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First screen of a real sample Full Report on EchoStar: the verdict, 17 sections, 63 cited sources, built 2026-10-21A real finished report, first screen. Opens in a new tab.

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Sourced from the company's Y Combinator directory entry, from the company's own site, read directly on 2026-09-27 (subimage.io), and from Hacker News, where 5 threads met the matching rule stated beside the count.

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SubImage: Accepted into Y Combinator Winter 2025
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Permanent URL: https://mentionfox.com/funding/yc-subimage
Last updated 2026-10-20
Primary record: Y Combinator directory entry
SubImage (YC W25) — The Open-Core security graph. MentionFox, 2026-10-20. https://mentionfox.com/funding/yc-subimage