Erinys
New accelerator entry · 2026-08-09 · the record
In their words
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.
What the record says
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.
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. He scored a perfect 180 on the LSAT and studied Computer Science and Real Estate at the University of Maryland.
Founders, titles and bios as the company published them. Photographs are our own copies of the ones on that record, so they do not break when the original link expires.
Against the 209 companies on file from Summer 2026. Median team 2, largest 30.
The nearest companies on file from the same batch, side by side with this one.
| Company | Batch | Sectors | Listed |
|---|---|---|---|
| Frontier Computing | Summer 2026 | Artificial Intelligence, Hard Tech, Hardware | 2026-08-31 |
| Ethos Space Resources | Summer 2026 | Hard Tech, Exascale Computing, Energy | 2026-08-23 |
| Spectre Intelligence | Summer 2026 | Biotech, Investing, Trading | 2026-08-22 |
| Edgerun | Summer 2026 | Robotics, Defense | 2026-08-21 |
| Allia Health | Summer 2026 | Artificial Intelligence, Healthcare, Mental Health | 2026-08-19 |
| Erinys (this page) | Summer 2026 | Artificial Intelligence, Legal, LegalTech | 2026-08-09 |
Click a column heading to sort. Comparison is against records held here, not against every company that exists.
The full profile
The rest of this profile is open on any paid or trial plan
It costs no credits. It is a plan check and nothing else.
- Source Check — verify Sasha Zyuzin's other claims against the registers that hold them.
- INVEST — compare this company against the peers above, on the numbers.
- RECRUIT — see who is already on the team.
- Press Requests — connect with Sasha Zyuzin for a story.
You land back on this company when you are in.
Not ready to upgrade? Keep this one in view instead.
Watchlist ErinysYou get an alert in MentionFox the next time this company shows up.
Is this you?
If you're behind Erinys: acceptance into a YC batch is one of the few weeks a young company gets looked up by people who matter — investors, other founders, press. FoxPlug turns the commits, deploys, and releases you're already making into that story automatically, so anyone who looks finds something current. FoxChat puts a guide on your own site so the people YC's own page just sent you don't read one line and leave.
Sourced from the company's Y Combinator directory entry. Figures are read directly from the source record; names have not been matched against other people.