Skip to main content

Stilta

Category: AI in Legal

Agentic AI platform for patent litigation that automates prior art searches, invalidity/infringement analysis, and IP portfolio management using a swarm of specialized AI agents. Stilta was founded in 2025. The company is led by Oskar Block. Based in Stockholm, Sweden. Team size: 1-10. Total funding raised: $10.5M. Latest round: Seed. Key investors include Andreessen Horowitz (a16z); Y Combinator; Operators/founders from OpenAI, Sana, Legora, Lovable, Listen Labs.

Founded
2025
Headquarters
Stockholm, Sweden
Team size
1-10
Total funding
$10.5M

Value proposition

Agentic AI that automates the analytical bottleneck of patent litigation — running search and analysis at a scale manual methods cannot match, with every output source-backed, referenced, and auditable for litigation-grade trust.

Products and solutions

Agentic AI platform for patent invalidity, infringement, and freedom-to-operate (FTO) analysis; prior art search across 180M+ patents, 250M scientific publications, and 1T+ web archives; automated claim chart generation with color-coded citation strength; multi-agent parallel analysis for anticipation and obviousness theories; portfolio monitoring and valuation

Unique value

First agentic AI platform purpose-built for patent litigation (not just drafting), delivering litigation-grade claim charts with pinpoint citations, ~3x recall vs general LLMs, and interactive agent-driven analysis that works alongside practitioners rather than replacing them.

Target customer

Corporate in-house IP teams (pharma, industrials, high-tech) and IP law firms focused on litigation — ~2/3 corporate, ~1/3 law firms; split ~50/50 US/Europe

Industries served

Legal (Intellectual Property / Patent Litigation); Pharmaceuticals; Industrials; High-Tech; Logistics

Technology advantage

Agentic AI swarm architecture: specialized agents work in parallel and converge on analysis — reasoning like a room of human specialists but at machine scale. Searches 180M patents + 250M publications + 1T web pages simultaneously. 3x recall over general-purpose LLMs on invalidity tasks. Every output traceable to pinpoint citations with source PDFs.

How they differentiate

Multi-agent AI architecture that dispatches specialized agents to search patents, scientific literature, web archives, and USPTO prosecution history in parallel — achieving ~3x recall vs general LLMs (ChatGPT, Claude, Perplexity) on invalidity tasks. Every output is source-cited, referenced, and auditable with interactive claim charts. Built specifically for litigation-grade work (invalidity, infringement, FTO) rather than drafting, by four former McKinsey/QuantumBlack AI engineers.

Main competitors

Patlytics; Solve Intelligence; DeepIP

Key partnerships

Y Combinator (Winter 2026 batch); Internet Archive / Wayback Machine integration for web archive search; USPTO prosecution history data integration

Notable customers

Roche; Alfa Laval; Maersk; three of the world's five largest IP firms (as customers or active pilots)

Major milestones

Founded December 2025 by four former McKinsey/QuantumBlack engineers; Accepted into Y Combinator Winter 2026 batch; Product launched February 2026; Closed $10.5M seed round led by Andreessen Horowitz (May 2026); Signed Roche, Alfa Laval, and Maersk as enterprise customers; Signed three of the world's five largest IP firms as customers or active pilots

Market positioning

AI-native agentic platform specifically targeting patent litigation (invalidity, infringement, FTO) — differentiated from patent-drafting tools by its focus on litigation-grade, source-backed, auditable analysis using a multi-agent architecture. Competes directly with Patlytics ($65M raised) and Solve Intelligence ($52M+ raised) in the rapidly growing AI-for-patent space.

Geographic focus

US and Europe (~50/50 split)

About Oskar Block

Ex-McKinsey & Company (QuantumBlack); Ex-Goldman Sachs; Bootstrapped two startups to +$1M ARR (first startup built ML models for sports betting at age 18); Ex-Einride (autonomous trucking). Y Combinator W26.

Official website: