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Erinys launch: what they're building and where to launch next

FoxPlug writes launch posts from what a startup ships and matches it to the launch communities that fit it. This page shows what Erinys is building and where it could launch next; if it is your startup, start free below.

What they're building

We help lawyers start and scale AI-native law firms.

Batch
Y Combinator Summer 2026
Industry
B2B
Team size
3
Based
San Francisco, CA, USA

Founders

erinys.ai ↗

See their funding details ↗

Erinys on the record

What they shipped

  • From its YC profile: Erinys provides the technology, intake, back office, and client acquisition needed to launch and scale an AI-native law firm. Lawyers own their firms and make every legal decision; Erinys handles everything around them. (source)
  • Its own site describes it as: "Erinys launches and operates AI-native law firms for lawyers ready to build something of their own." (source)

Who is behind it

  • Sasha Zyuzin, Founder/CEO: Founder at Erinys (YC S26). Presented vulnerability discovery research at Black Hat USA 2025 and spoke at the SANS OSINT Summit 2025. Undergraduate researcher at UMD working across IPv6 botnet detection, malware analysis, and hardware security. Previously taught an OSINT course at UMD and led the university's 1800+ member cybersecurity club. (source)
  • Jason Guo, Founder: Founder at Erinys (YC S26). Has experience in very diverse parts of the tech stack, from industrial PLCs to kernel exploitation. In-progress computer engineering degree in the University of Maryland. (source)
  • Matthew Pallan, Founder/CTO: Founder at Erinys (YC S26). Before Erinys, Matthew led greenfield development at multiple organizations, directing engineering across several product groups. He's a deep technical builder across domains, having engineered sub-290ns trading systems for HFT firms and worked in cybersecurity spanning exploitation and security systems. (source)

Timeline

  1. 2026: founded, per its YC profile. (source)

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Where else to launch Erinys

  • Product Hunt ↗
    Self-promotion allowedFree
  • Indie Hackers Forum ↗
    Self-promotion allowed
    Audience: IndieHackers; bootstrapped solo founders sharing revenue and behind-the-scenes
  • Hacker News (Show HN) ↗
    Self-promotion allowed, within the community's rules
    Audience: Hacker News readers; engineers, technical founders, infra-curious people
  • Demand Curve ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group
  • No Code Founders ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group
  • OnlineGeniuses ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group
  • Product Makers ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group
  • ProductLed ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group

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Featured on FoxPlug: Erinys