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Cobblestone (YC W23) — Delinquency reduction and automation software for institutional…

We're building software to help institutional landlords reduce delinquency starting with fraud reduction.

Cobblestone is a Y Combinator company in the Winter 2023 batch. Its directory entry describes it as: Delinquency reduction and automation software for institutional…. The founders listed are Jack Mastrangelo (Founder), Jason Scharff (Founder) (Y Combinator directory entry, September 8, 2024).

6 more companies from YC Winter 2023 ↓

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Cobblestone

New accelerator entry · 2024-09-08 · the record

Winter 2023
batch
3
people
Early
stage
United States of America
region
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What the record says

BatchWinter 2023
Announced2024-09-08
StageEarly
StatusAcquired
Team size3
IndustryReal Estate and Construction
Sub-industryReal Estate and Construction
SectorsFintech, Real Estate, B2B
RegionsUnited States of America, America / Canada
BasedNew York City, NY, USA
HiringNo
Sitehttps://getcobblestone.com
Founded2023
YC group partnerJared Friedman
Previously known asAppDoma

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Also in YC Winter 2023

Same batch, Real Estate and Construction first.

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Example from a real report (our sample on Target): “Target eliminated approximately 1,800 corporate positions, with around 1,000 employees receiving layoff notices and the remainder accounted for by eliminating open roles.” Source: NBC News

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In their words

We're building software to help institutional landlords reduce delinquency starting with fraud reduction.

Want the whole picture on Cobblestone?

Example from a real report (our sample on Target): “Target eliminated approximately 1,800 corporate positions, with around 1,000 employees receiving layoff notices and the remainder accounted for by eliminating open roles.” Source: NBC News

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

What the Full Report on Cobblestone 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

    7 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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If you're behind Cobblestone: acceptance into a YC batch is one of the few weeks a young company gets looked up by people who matter — investors, other founders, press. FoxPlug turns the commits, deploys, and releases you're already making into that story automatically, so anyone who looks finds something current. GetFoxChat puts a guide on your own site so the people YC's own page just sent you don't read one line and leave.

Sourced from the company's Y Combinator directory entry, from the company's own site, read directly on 2026-09-27 (getcobblestone.com), and from Hacker News, where 1 thread met the matching rule stated beside the count.

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Fintech startups Real estate and proptech startups

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Cobblestone: Accepted into Y Combinator Winter 2023
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Permanent URL: https://mentionfox.com/funding/yc-cobblestone
Last updated 2026-10-20
Primary record: Y Combinator directory entry
Cobblestone (YC W23) — Delinquency reduction and automation software for institutional…. MentionFox, 2026-10-20. https://mentionfox.com/funding/yc-cobblestone