Stilta

What Stilta does

Stilta (Stilta IP AB) is a Stockholm-based, venture-backed startup that builds an agentic AI platform for high-stakes patent work, serving corporate IP teams at Fortune 500 companies and the world's largest IP law firms. The platform runs three domain modules — Infringement Analysis, Invalidity Analysis, and Freedom to Operate (FTO) — against an indexed corpus of 180M+ patents across 100+ jurisdictions, 250M+ scientific publications, and 1T+ archived web pages. Multi-source domain agents decompose patent claims, search patents, scientific literature, file wrappers, and archived web in parallel, and return source-cited, word-for-word defensible claim charts or FTO opinions in a median of ~17 minutes, a task that traditionally costs $15K-$50K and 4-8 weeks of manual search.

The company was founded in late 2025/early 2026 by four ex-McKinsey/QuantumBlack AI engineers (Oskar Block, CEO; Petrus Werner, CTO; Tobias Estreen, Chief Architect; Oscar Adamsson, CPO), accepted into Y Combinator's Winter 2026 batch, and launched in February 2026 with enterprise customers including Roche, Alfa Laval, Maersk, KUKA, and three of the five largest global IP firms. Stilta is also used by a Scandinavian investment bank to run IP portfolio diligence for securitization.

Revenue is generated via enterprise quote-based SaaS subscriptions (multi-year contracts, no public pricing) plus project/case-based engagements, distributed exclusively through a 'Book a Demo' direct sales motion supported by senior IP practitioners as referral channels. The company raised a $10.5M seed round led by Andreessen Horowitz in May 2026 and is expanding go-to-market, engineering, and patent-expert teams across Stockholm and New York, with US/EU data residency and SOC 2 Type II, ISO 27001, GDPR, and EU AI Act-aligned security posture to clear enterprise procurement.

Name

Stilta

Legal name

Stilta IP AB

Website

https://stilta.com

Company type

Private

Founded year

2026

Operating status

Operating

Headcount range

1–10 employees

Short description

Stilta builds an agentic AI platform that automates patent invalidity, infringement, and FTO analyses for Fortune 500 corporate IP teams and top global IP law firms, delivering source-cited defensible answers in minutes.

Ownership category

akta.pro rank

Product category

Legal AI / Patent Intelligence Software

NAICS

Software Publishers (5132), Title Abstract and Settlement Offices (541191)

SIC

Patent Owners & Lessors (6794), Services-Computer Programming Services (7371)

akta.pro industry

PRIMARYBPAHAMAA

Patent Prosecution & Portfolio Management

Business & Public Services/Professional Services (Legal, Accounting, Consulting)/Intellectual Property (IP) & Patent Services

SECONDARYBPAEAPAN

IP Management, Patents & Trademark Software

Business & Public Services/IT & Digital Services (Managed Services, Systems Integration)/Governance, Risk, Compliance (GRC) & Legal Tech

SECONDARYBPAHAMAG

IP Due Diligence & Freedom-to-Operate (FTO) Analysis

Business & Public Services/Professional Services (Legal, Accounting, Consulting)/Intellectual Property (IP) & Patent Services

SECONDARYHDAAAKAA

Model Governance, Risk & Compliance (GRC) Platforms

Hardware, Technology & Telecom/Artificial Intelligence & Machine Learning/AI Security, Privacy & Model Governance

Keywords

• Agentic AI patents
• Patent litigation software
• Prior art search
• Freedom to operate analysis
• Intellectual property automation

Headquarters

HQ city

Stockholm

HQ country

Sweden

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure

Revenue model

1. Enterprise SaaS Subscription: Recurring SaaS revenue from enterprise customers (corporate IP teams and top global IP law firms). Pricing is quote-based / not publicly disclosed; acquired via 'Book a Demo' enterprise sales motion. Customers include Roche, Alfa Laval, Maersk and three of the five largest IP firms globally.
2. Project-Based / Case-Engagement Revenue: Per-engagement revenue from clients who engage Stilta to run targeted infringement and validity analyses (e.g., Scandinavian investment banking group engaged Stilta to evaluate a music & AI patent portfolio spanning US + Europe for potential securitization/sale). Approximately 30 minutes per-patent analysis versus ~20 hours manually.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels7 records

Core offering

Stilta provides an agentic AI platform for high-stakes patent work that automates invalidity, infringement, and freedom-to-operate analyses across patents, scientific literature, and web archives. The system uses specialized domain agents that read full-text patents, decompose claims, and surface defensible, source-cited evidence in a median of approximately 17 minutes, replacing manual prior-art searches that typically take 4-8 weeks and cost $15,000-$50,000 per matter.

Product overview

Stilta offers a single unified agentic AI platform for high-stakes patent work, architected as a core platform (the Stilta Platform) plus three domain-specific modules — Infringement Analysis, Invalidity Analysis, and Freedom to Operate (FTO). The platform orchestrates domain agents that reason across 180M+ patents, 250M+ scientific publications, and 1T+ archived web pages, while each module addresses a specific litigation posture (asserting infringement, defending against assertions, or clearing a commercialization path). Customers engage one or more modules against the same underlying indexed corpus and source-cited evidence pipeline, with the platform returning defensible claim charts, FTO opinions, or infringement reads in a median of ~17 minutes.

Differentiator

Problem solved

Functional benefit

Products and services

• Stilta Platform Agentic AI platform for high-stakes patent work that runs invalidity, infringement, and freedom-to-operate analyses across patents, scientific literature, and web archives, returning source-cited defensible answers in a median of ~17 minutes.
• Infringement Analysis Agentic module that identifies who is using a customer's patents at single-patent or full-portfolio scale by mapping product features, technical documentation, and public disclosures element-by-element against the customer's claims.
• Invalidity Analysis Agentic module for defending against infringement letters, testing specific prior-art hypotheses, and assessing patent legal strength by searching 180M+ patents, 250M+ scientific publications, and archived web pages to return steerable, element-mapped results.
• Freedom to Operate (FTO) Agentic module that decomposes a product or planned launch into patentable features and surfaces patents that may be infringed, ranked by risk with traceable per-feature source-backed evidence.

Quantifiable outcome

• 71% petition recall on PTAB IPR benchmark (N=40), +31pp vs commercial patent search tools and +49pp vs general LLMs
• +5 more outcomes

Named customers10 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability3 records

Feature8 records

Partnerships

Two partnerships are on record, tiered core.

• Microsoft for StartupscoreStrategic or Co-development PartnerMicrosoft is listed as a backer on stilta.com and Stilta is part of the Microsoft for Startups program; Microsoft also participated implicitly via the founders-and-operators-of-unicorns backer cohort in the $10.5M round.
• NVIDIA Inception ProgramcoreStrategic or Co-development PartnerStilta is a member of the NVIDIA Inception Program, providing access to NVIDIA's AI/accelerated-computing ecosystem; NVIDIA logo shown among Stilta backers.

Scale indicators10 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• Clarivate (Derwent / IPfolio): Clarivate owns Derwent, the leading patent analytics and prior-art database, and IPfolio, an enterprise IP management platform. It is the most direct incumbent competitor for the patent-specific intelligence workflows Stilta targets and has multi-decade corporate IP team relationships.
• Anaqua: Anaqua is a leading IP management and analytics software platform for corporate IP teams and law firms. It is a system-of-record competitor in IP portfolio management and a credible distribution channel or acquisition target relevant to Stilta's enterprise IP team customer segment.
• Thomson Reuters (CoCounsel / Westlaw): Thomson Reuters operates Westlaw, the dominant legal research platform, and CoCounsel, a generative AI legal assistant. It is the most entrenched incumbent in patent and legal research and competes with Stilta for both budget allocation and the underlying patent/full-text corpus.
• Harvey: Harvey is a leading enterprise legal AI platform serving global law firms and corporate legal teams with general-purpose AI workflows across practice areas. It is comparable to Stilta as a direct competitor for IP-practitioner mindshare and budget, though its patent-specific depth is shallower than Stilta's purpose-built agentic stack.
• LexisNexis (Protégé / Lexis+): LexisNexis provides Lexis+ AI and Protégé legal AI tools alongside its patent and scientific literature databases. It competes with Stilta as an incumbent legal-research and AI platform with deep enterprise law-firm penetration and comparable document corpus assets.

Emerging players

• Casetext: Casetext (now part of Thomson Reuters) built CoCounsel, an early legal AI assistant adopted by Am Law firms. Its trajectory illustrates both the speed of legal AI adoption at top firms and the consolidation risk Stilta faces as incumbents absorb patent-specific capabilities.
• Spellbook: Spellbook is an AI assistant for transactional and litigation lawyers that drafts, reviews, and reasons over legal documents. It competes for the same corporate legal and law-firm budget pool as Stilta and is a credible adjacent competitor that could expand into patent workflows from its general-practice base.

Direct peers

• Patsnap: Patsnap is a patent analytics and intelligence platform using AI to surface prior art, competitive intelligence, and IP trends. It is one of the closest direct competitors to Stilta in agentic patent search and analytics, with overlapping customer base in corporate IP teams and law firms.
• Legora: Legora is a Swedish-founded legal AI platform that participated in Stilta's seed round and shares Nordic DNA plus a multi-practice legal AI thesis. While broader in scope today than patent litigation, Legora is the closest geographically and architecturally comparable peer and a credible future entrant into patent-specific workflows.

Others

• RWS (Patents / IP services): RWS is a leading patent translation, filing, and IP services provider serving the same enterprise IP teams and law firms as Stilta. It is an adjacent services peer rather than a direct AI competitor, but its enterprise relationships make it a potential channel or strategic partner for Stilta.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/stilta11516
• LinkedInlinkedin.com/company/stilta

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds2 records

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Stilta