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PullRequest
PullRequest combines AI and human code reviewers to help developers ship secure code faster.
PullRequest
PullRequest was founded in May 2017 by Lyal Avery, Tyler Mann, and Dan Mateer. The company went through Y Combinator's S17 accelerator program and is headquartered in Austin, Texas with an additional office in San Francisco. Its product, rebranded as HackerOne Code, combines AI-powered scanning with human reviewer validation. The platform integrates with GitHub, GitLab, BitBucket, and Azure DevOps, supporting all major programming languages. Reviewers are contractors based in the US, the UK, New Zealand, Australia, or Canada, and all pass criminal background checks. The AI layer, called Hai, flags high-risk changes for expert review, aiming to eliminate false positives while catching real vulnerabilities. PullRequest has raised venture funding from undisclosed investors. The company's executive team includes Avery, Mann, and Mateer. In 2024, the firm was acquired by HackerOne (per HackerOne, May 2024), further integrating code review into a broader security platform. The firm's structural differentiator is its human-in-the-loop model, where every AI-flagged issue is manually validated by a professional reviewer before being surfaced to developers. This hybrid approach is designed to reduce noise compared to fully automated tools, making security reviews more actionable for engineering teams.
General information
Firm type
other
Year founded
2017
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Austin
Corporate office
Austin, TX, United States
Additional offices
San Francisco, CA, United States
Principals
Lyal Avery
Executive Team
Tyler Mann
Executive Team
Dan Mateer
Executive Team
Sector focus
Frequently asked questions
Who runs investment decisions at PullRequest?
PullRequest is led by an executive team including Lyal Avery, Tyler Mann, and Dan Mateer. Specific investment decision-makers are not publicly disclosed, as the firm is a software company, not an investment vehicle.
How does PullRequest source proprietary deal flow?
PullRequest does not function as an investment firm; it is a technology company offering code review services. Deal flow is not applicable in this context.
Is PullRequest structured as a single family office or does it operate more like a venture firm?
PullRequest is neither a family office nor a venture firm. It is a privately held software company, acquired by HackerOne in 2024 (per HackerOne, May 2024).
Does PullRequest participate in fund commitments or only direct deals?
PullRequest is not an investment entity. It does not participate in fund commitments or direct deals; it provides a code review platform to enterprise customers.
What investment stages does PullRequest typically target?
PullRequest targets development teams across all stages of the software lifecycle, from one-person startups to Fortune 500 companies. This is not an investment stage but a customer segmentation.
Which sectors does PullRequest explicitly avoid?
PullRequest serves any organization that writes software; it does not explicitly avoid any sector. Its reviewers are contractors subject to background checks, and client information is protected by confidentiality agreements.
How is PullRequest related to HackerOne?
PullRequest was acquired by HackerOne in May 2024 and its product has been rebranded as HackerOne Code (per HackerOne, May 2024). The two entities now operate as a combined code security platform.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
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