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Stacksi (YC W21) — Automated answers to security questionnaires

Stacksi helps companies automate the process of answering enterprise security questionnaires so they can close deals faster and save their best engineers’ time for more strategic projects. Salespeople, CTOs, and CEOs of fast-growing enterprise startups can upload security questionnaires into our system.

Stacksi is a Y Combinator company in the Winter 2021 batch. Its directory entry describes it as: Automated Answers to Security Questionnaires. The founder listed is Emre Murray Mangir (Founder) (Y Combinator directory entry, March 1, 2021).

6 more companies from YC Winter 2021 ↓

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Stacksi

New accelerator entry · 2021-03-01 · the record

Winter 2021
batch
4
people
Early
stage
United States of America
region
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What the record says

BatchWinter 2021
Announced2021-03-01
StageEarly
StatusAcquired
Team size4
IndustryB2B
Sub-industryB2B -> Security
SectorsCompliance, Cybersecurity
RegionsUnited States of America, America / Canada, Remote, Fully Remote
BasedLos Angeles, CA, USA; Remote
HiringNo
Sitehttps://www.stacksi.com

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Also in YC Winter 2021

Same batch, B2B first.

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In their words

Stacksi helps companies automate the process of answering enterprise security questionnaires so they can close deals faster and save their best engineers’ time for more strategic projects. Salespeople, CTOs, and CEOs of fast-growing enterprise startups can upload security questionnaires into our system. If the company already has written security policies, they can upload those documents, too. From there, Stacksi parses their documents, identifies gaps in their security policies vs. standards, and helps them establish a successful security program. Ultimately, we will help them 1) automate completion of security questionnaires, 2) quickly get through enterprise security audits and 3) improve their security posture.

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Stacksi: Accepted into Y Combinator Winter 2021
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Permanent URL: https://mentionfox.com/funding/yc-stacksi
Last updated 2026-10-20
Primary record: Y Combinator directory entry
Stacksi (YC W21) — Automated answers to security questionnaires. MentionFox, 2026-10-20. https://mentionfox.com/funding/yc-stacksi