Legal

Stilta

Website
Founded 2026Origin source ↗Checked 2026-09-15

Overview

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.

Company description As recorded 2026-11-08
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Customers & use cases

Backed by a16z, NVIDIA and Y Combinator, Stilta is used by leading IP firms and in-house IP teams at global enterprises

Source-reported As recorded 2026-10-27

Founders & team

Previously Patrona

Company history As recorded 2026-11-08

Oskar Block

Founder/CEO

Oskar is the CEO of Stilta. He started his first company building ML models for sports betting when he was 18, and later bootstrapped another to +$1M in revenue and +25,000 monthly active users. Previously at McKinsey, Goldman Sachs, and two Swedish unicorns.

LinkedIn X
Founder profile As recorded 2026-09-15

Oscar Adamsson

Founder/CPO

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.

LinkedIn
Founder profile As recorded 2026-09-15

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.

LinkedIn X
Founder profile As recorded 2026-09-15

Petrus Werner

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.

LinkedIn
Founder profile As recorded 2026-09-15
4team members reported
Source-reported As recorded 2026-09-15

Founded 2026 · Source

News & product activity

Sources & observations

Y Combinator

Profile depthenriched profile
Website observationwebsite reachable
Last website check2026-11-11
Location · source statedStockholm, Stockholm County, Sweden
Pricing evidenceNo pricing page confirmed
Maturity: Operating · 3 of 6 areas documented

Source-based assessment · automated evidence rules

The company website explicitly reports customer or user adoption. This is a source-based assessment of a company claim; scale and revenue are not independently verified.

Company website: home Checked 2026-10-27

Trusted by 100+ IP teams

Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.

Stage definitions
independent websitesource corroborationreachable websitedescriptive evidenceclassified market and modelsourced peoplesourced founding yearrecent publishing observed
startup.observe Directory coverage · Sources & method