Bylaw (YC Summer 2026)

TL;DR: Bylaw is a Y Combinator Summer 2026 startup Guarantee your agents use the right evidence before they act., currently active with a team of 3.

Guarantee your agents use the right evidence before they act.

YC ID
32286
YC Batch
Summer 2026
Status
Active
Team size
3
Industry
B2B, Infrastructure
Tags
SaaS, Compliance, Security
YC profile
https://www.ycombinator.com/companies/bylaw

Last verified:

Bylaw is a check that runs before an AI agent writes to your systems. If the agent is about to act on evidence that is wrong, outdated, or don’t agree across sources, we block the action or send it to a human first. We all met our first year at the University of Waterloo studying computer science. We have previously interned at Meta, Optiver, and BitGo, places where making decisions on unverified data could have lethal reprecussions. We kept running into the same failure deploying agents: the agent was allowed to call the tool, but nobody had verified the facts behind the call. Guardrails ask “can this agent use this tool?” Evals catch mistakes after the fact. Neither checks whether chat, docs, CRM, and tool results actually agree at the moment of the write. That’s why the same refund or…

Frequently asked questions

Is Bylaw a YC (Y Combinator) company?

Yes. Bylaw was funded by Y Combinator in the Summer 2026 batch. Guarantee your agents use the right evidence before they act.

What does Bylaw do?

Bylaw is a check that runs before an AI agent writes to your systems. If the agent is about to act on evidence that is wrong, outdated, or don’t agree across sources, we block the action or send it to a human first. We all met our first year at the University of Waterloo studying computer science. We have previously i…

What YC batch was Bylaw in?

Bylaw was part of Y Combinator's Summer 2026 batch.

How big is Bylaw?

Bylaw has a team of 3 people according to Y Combinator's directory.

Is Bylaw still active?

Bylaw is currently listed as Active with a team of 3 in Y Combinator's directory.

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