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Jestor (YC S21) — Saving OPS from SLOPS. jestor builds internal systems that last

Stop vibecoding internal tools nobody can maintain. Get apps, tables, forms, dashboards, and AI automations built for your process, on infrastructure that already handles permissions, data, and integrations.

Jestor is a Y Combinator company in the Summer 2021 batch. Its directory entry describes it as: Saving OPS from SLOPS. Jestor builds internal systems that last. The founder listed is Bruno Bannach (Founder) (Y Combinator directory entry, July 17, 2021).

6 more companies from YC Summer 2021 ↓

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Jestor

New accelerator entry · 2021-07-17 · the record

Summer 2021
batch
12
people
Early
stage
United States of America
region
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What the record says

BatchSummer 2021
Announced2021-07-17
StageEarly
StatusActive
Team size12
IndustryB2B
Sub-industryB2B -> Productivity
SectorsB2B, Productivity, Operations, AI
RegionsUnited States of America, America / Canada, Remote, Partly Remote
BasedSan Francisco, CA, USA
HiringNo
Sitehttps://jestor.com
Previously known asjestor

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Also in YC Summer 2021

Same batch, B2B first.

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In their words

Stop vibecoding internal tools nobody can maintain. Get apps, tables, forms, dashboards, and AI automations built for your process, on infrastructure that already handles permissions, data, and integrations. Your team just opens the app. Unlimited users, pause anytime.

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Example from a real report (our sample on Target): “The Q2 2026 earnings report, published August 19, 2026, showed adjusted EPS of $2.46 against an expected $2.33” Source: CNBC

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  5. The Money: Funding, Valuation, Runway

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Jestor: Accepted into Y Combinator Summer 2021
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Permanent URL: https://mentionfox.com/funding/yc-jestor
Last updated 2026-10-20
Primary record: Y Combinator directory entry
Jestor (YC S21) — Saving OPS from SLOPS. jestor builds internal systems that last. MentionFox, 2026-10-20. https://mentionfox.com/funding/yc-jestor