Mesmer is the agentic factory for engineering organizations: everything around the coding agents that decides whether they make a team faster or only noisier. Gates that decide what reaches production, lanes that give every PR the review it deserves and no more, agents that test before a human looks, keep the codebase legible to other agents, and trace an incident back to the decision that caused it.

Our engineers decide which of these a team needs, implement them in the customer's repositories, and keep improving them as the field moves. Nothing we build stays trapped in one account: it runs on Mesmer, pointed at their repos, so every customer makes the next one cheaper.

We do it because every CTO we talk to is tired of chasing the frontier, of internal AI experiments that flame out, of initiatives that never turn into a way of working. Their default move is to pull their best engineers off the product and point them at "AI". That is who we replace.

The company was founded by repeat founders and CTOs. We are live with thousands of engineers across hundreds of teams, SOC 2 Type II, and backed by a $5M seed from YC, GFC, Rebel Fund, Pioneer Fund, Kaya, Flex, Liquid 2, 468 Capital and Singularity Capital. In one customer org of more than 100 engineers, five months produced a 150% productivity lift and 8.5x agent output.