Stilta Raises $10.5M Seed Round Backed by a16z and YC
A legal tech startup is making waves just months after its launch. Stilta, an AI patent litigation startup, announced Tuesday it has raised a $10.5 million seed round led by Andreessen Horowitz. Other backers include Y Combinator and operators from OpenAI, Legora, and Lovable a roster that signals serious confidence in both the team and the market.
The company was co-founded by Oskar Block, Tobias Estreen, Petrus Werner, and Oscar Adamsson. The idea came to Block and Estreen over dinner with Estreen’s father, a patent attorney who had spent decades doing the same document-heavy work by hand. That conversation sparked a question: what if AI could do it faster and better?
How Stilta Works
Stilta operates like a virtual legal team. A user inputs a patent number alongside relevant content, and a network of AI agents immediately gets to work scanning for conflicting patents, flagging similar intellectual property, and pulling the full filing and court history of the claim. The output is described as litigation-grade, complete with detailed claim charts and citations. Lawyers remain in the driver’s seat, directing the analysis rather than surrendering it.
This Stilta AI patent litigation startup is entering a crowded but hungry market. Competitors like Solve Intelligence and DeepIP are also chasing the IP automation space. But Stilta’s backers and early traction suggest it has found a compelling angle: millions of patents are sitting unexamined on corporate shelves because the cost of reviewing them was too high. Stilta aims to change that math entirely.
As Block put it, the real question is not whether the legal system is ready for AI it is whether companies are ready for what becomes possible once that analytical bottleneck disappears.
