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Stilta

Agentic AI for intellectual property

Stilta builds agentic AI software for intellectual property, starting with patent litigation. Whether challenging or enforcing a patent, leading IP law firms and in-house IP teams use Stilta for source-backed, auditable analysis. Innovation drives the world's most important breakthroughs, but the tools that protect it haven't kept pace. Patent attorneys do high-stakes work with a process still built on manual document review and disconnected point solutions. Generative AI helps with drafting, but it doesn't deliver the trust and transparency that legal-grade work demands - no sources, no traceability, no audit trail. Stilta takes a different approach. We use agentic AI to run search and analysis at a scale manual methods can't match, with every output source-backed, referenced, and auditable. Until recently, this wasn't technically possible. We're four engineers from McKinsey/QuantumBlack who built and deployed AI systems at some of the world's largest organizations. With Stilta, we're equipping the people who protect the world's most valuable ideas with tools that match the stakes.
Active Founders
Oskar Block
Oskar Block
Founder
Oskar is the CEO of Stilta. He started his first company building ML models for sports betting at 18, and later bootstrapped another to +$1M ARR and +25,000 monthly active users. Previously at McKinsey, Goldman Sachs, and two Swedish unicorns.
Oscar Adamsson
Oscar Adamsson
Founder
Oscar is CPO and co-founder of Stilta. Before Stilta, he built products at a unicorn, was a founder himself, and worked with 50+ CEOs at McKinsey to shape Sweden's innovation agenda. He has a background as a competitive mathematician, with degrees in business and AI from Chalmers and other top Swedish universities, plus coursework at UC Berkeley and Bocconi.
Tobias Estreen
Tobias Estreen
Founder
Tobias is co-founder of Stilta. Previously at QuantumBlack (McKinsey & Company), he led teams developing agentic AI systems for global clients. He is a second-time founder with a background in physics and machine learning from KTH and KU Leuven, bringing deep technical expertise and a track record of building AI systems for complex, high-stakes environments.
Petrus Werner
Petrus Werner
Co-founder & CTO
Founder and CTO of Stilta. Prior to Stilta, he built and deployed AI systems across European organisations at QuantumBlack (AI by McKinsey & Company) and Amazon Web Services.
Company Launches
Stilta: Cursor for Patent Practitioners
See original launch post

TL;DR: Innovation is moving faster than ever, but the tools to protect it aren’t keeping up. We’re building Cursor for patent practitioners, reducing manual research and analysis while unlocking new opportunities.

Know any patent practitioners? Let’s connect: founders@stilta.com

🎥 Watch our launch video

Problem

Missing the right patent, or getting the analysis wrong, can cost billions. That’s why patent practitioners spend a large share of their time reading technical documents and building arguments. LLMs can generate text, but patent work has non-negotiables that most tools still don’t meet.

  • Research is manual: practitioners spend hours searching and analyzing to find the few patents that matter
  • Tools produce static reports: most solutions generate a final document or flat lists instead of interactive, argument-led analysis that adapts
  • Context gets lost: teams lack flexible end-to-end tools, resulting in a fragmented and clunky software stack
  • AI isn’t trusted without evidence: in patent work, outputs must be traceable to specific references with clear rationale

Solution

We've built Cursor for patent practitioners, using agentic AI to improve how high-stakes patent work is done end-to-end. Our agentic approach works alongside you, iterating on analysis rather than producing one-time reports. Specialized agents with deep domain and skills expertise handle complex patent analysis while building context from your documents and prior work. This enables deeper and more granular analysis that was not previously technically feasible.

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Whether you're searching for prior art, analyzing portfolios, or monitoring for infringement, you get interactive litigation analysis you can build on - not flat lists. We're already live with leading firms in both Europe and the US.

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Why this matters

Innovation is key to solving the world’s biggest challenges, but protecting innovation is still slowed down by manual, fragmented workflows. Patent practitioners should be able to move at the pace of innovation, so great ideas turn into durable competitive advantage.

Who we are

We’re four engineers and previous founders who met at McKinsey/QuantumBlack and spent the last few years building and deploying AI for large organizations. We saw first hand how the IP world has one of the largest gaps between available tools and what's needed - the perfect match for what we've built our expertise to solve.

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  • Tobias previously led AI projects at QuantumBlack and Netlight (and once turned down a pro League of Legends contract).
  • Petrus is a builder who’s spent the past 5 years scaling AI systems at QuantumBlack and AWS.
  • Oskar founded and bootstrapped two startups to +$1M ARR in parallel to working at McKinsey & Goldman Sachs.
  • Oscar competed nationally in Math, lead product development at unicorns, and worked with +50 CEOs at McKinsey.

Our ask

If you know patent practitioners who'd benefit from faster, better, and more interactive research, we'd love an intro.

Visit our website | Contact us | Book a demo

YC Photos
Stilta
Founded:2026
Batch:Winter 2026
Team Size:4
Status:
Active
Primary Partner:Gustaf Alstromer