/Companies

Haystack

YC S24

New York City, US · Founded 2024 · 2 employees · 4 known investors

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Haystack is a GitHub-integrated system that evaluates AI-generated pull requests by analyzing code context, diffs, agent reasoning, and test results to determine whether changes can be merged, require fixes, or need human review. It helps engineering teams manage high volumes of AI-generated code changes while maintaining quality standards and focusing human review effort on complex decisions.

Also known as Haystack Software Inc. · Haystack Software

Founders & leadership· Y Combinator alumni (S24)

Haystack was founded in 2024 by Jake Yatvitskiy and Akshay Subramaniam.

JYJake Yatvitskiy
Jake YatvitskiyCTOJake Yatvitskiy is a cofounder of Haystack Software with a background in AI and cloud infrastructure, including prior experience in AWS's High-Performance Computing division. He holds a Master's degree in Machine Learning from Columbia University.
ASAkshay Subramaniam
Akshay SubramaniamCEOAkshay Subramaniam is co-founder of Haystack Software and formerly a software engineer at Figma where he contributed to product launches including multi-edit functionality, Find and Replace, and FigJam accessibility features.

Investors · 4

Founder mafia

2 people who came through Haystack went on to found or lead other companies.

Related companies · 8

Deepsetdeepset builds tools for developing custom LLM agents and applications, and created Haystack, an open-source Python framework used as an enterprise standard for AI agents and applications. It offers enterprise products and expertise built on its open-source foundation to help organizations adopt AI.
CodeParrot AICodeParrot AI provides AI-powered software that converts visual designs from Figma files and screenshots into executable code, targeting developers who need to translate UI mockups into working implementations.
CodeVizCodeViz is a collaborative diagramming tool that helps software teams visualize code architecture, speed up PR reviews, and maintain living documentation of codebases across multiple programming languages.
Haystack NewsHaystack is a personalized news streaming service that lets users customize a newscast by choosing categories, sources, and topics, with live coverage, curated channels, and an interactive news ticker called Newsline offering local news, weather, stock data, and top stories. It aggregates on-demand and live-streaming national and local news, and helps local news stations distribute and monetize their content across TV platforms like Apple, Roku, Fire TV, and Samsung.
PartyMaitai provides software that corrects AI model outputs in real-time and automatically retrains models based on their errors, enabling enterprise customers to deploy more reliable AI applications that improve over time.
Haystack TeamHaystack provides a customizable digital headquarters platform for organizations, featuring no-code tools to build branded internal communication and collaboration spaces.
CoastsCoasts is a local-first, open source tool that enables parallel development environments by spawning isolated runtimes for AI coding agents working with git worktrees. It integrates with any agentic coding solution and supports hybrid local-remote runtime setups.
GuruGuru offers AI-powered team hubs and employee portals that keep company knowledge current by automatically surfacing verified, cited information for internal teams. It provides role-based access controls, Knowledge Agents that verify content accuracy, and answers delivered across Slack, Teams, and the browser.

Companies working in the same space as Haystack.

Legal entities · 1

corporate structure
Haystack Software Inc.

Frequently asked questions

What does Haystack do?
Haystack is a GitHub-integrated system that evaluates AI-generated pull requests by analyzing code context, diffs, agent reasoning, and test results to determine whether changes can be merged, require fixes, or need human review. It helps engineering teams manage high volumes of AI-generated code changes while maintaining quality standards and focusing human review effort on complex decisions.
Who founded Haystack?
Haystack was founded by Jake Yatvitskiy, Akshay Subramaniam in 2024.
Who are Haystack's investors?
Haystack's investors include Y Combinator, AltaIR Capital, Day One Ventures, Vestel Ventures.
Where is Haystack headquartered?
Haystack is headquartered in New York City, US.