What Imiron does

Imiron Co., Ltd. is a Tokyo-based deep-technology startup spun off in August 2024 from Japan's National Institute of Informatics (NII), founded by researchers from the JST ERATO MMSD project, including Prof. Ichiro Hasuo (CSO), Dr. Masakazu Adachi (CEO, formerly of Toyota Central R&D Labs and DENSO), and Dr. James Haydon (CTO). The company develops SpecForge, an AI-powered formal specification and analysis platform built on Lilo—a proprietary domain-specific language based on Signal Temporal Logic (STL) and implemented largely in Haskell. SpecForge enables developers to translate natural-language requirements into mathematically rigorous formal specifications, perform satisfiability checking, continuously monitor running systems against specifications, and produce safety argumentation evidence for mission-critical AI-enabled systems. The technology stack includes a formal verification engine, a GA-RSS safety framework derived from NII research, a Visual Studio Code extension, and a Python SDK.

The company's commercial focus is enterprise customers in three primary verticals: autonomous mobility (with a flagship joint project with T2 Inc. targeting Level 4 autonomous driving approval), manufacturing and robotics (AI-powered factory automation, embedded systems), and social infrastructure. Named customers include T2 Inc. and Toyota Motor Corporation. Imiron's go-to-market combines direct enterprise sales with technical pre-sales and post-sale implementation engineering, supplemented by participation in industry events (EdgeTech+, FM 2026, MUFG Startup Summit 2026), a self-serve/PLG motion via the VSCode extension and downloadable releases, and channel acceleration through the Plug and Play Japan Summer 2026 Batch. Revenue derives from quote-based SpecForge software licenses (subscription) together with professional services for consulting, requirements analysis, and implementation/onboarding. The company has raised approximately ¥200 million across a ¥60M seed round (December 2024, Abelia Capital) and a ¥140M pre-Series A round (June 2026, led by DG Daiwa Ventures with Mitsubishi UFJ Capital and THE GOGIN CAPITAL), and has been recognized with the EdgeTech+ AWARD 2025 AI Design Support Excellence Award from JASA.

Name

Imiron

Legal name

Imiron Co., Ltd.

Website

https://imiron.io

Company type

Private

Founded year

2024

Operating status

Operating

Headcount range

1–10 employees

Short description

Imiron is a Tokyo-based deep-tech startup (NII spin-off) that offers SpecForge, an AI-powered formal specification and verification platform using its proprietary Lilo DSL, serving enterprise customers in autonomous mobility, manufacturing, and robotics.

Ownership category

akta.pro rank

Product category

Formal Verification Software

NAICS

Software Publishers (5132), Custom Computer Programming Services (541511)

SIC

Services-Prepackaged Software (7372), Services-Computer Programming Services (7371)

akta.pro primary industry

AI Observability, Monitoring & Evaluation Platforms (Drift, Quality, Safety) (HDAEANAF)

akta.pro secondary industries

Model Transparency, Explainability & Interpretability (XAI) (HDAAAMAB), Enterprise AI Governance, Risk & Compliance Platforms (Model Risk, Audit, Policies) (HDAEANAE), Regulatory Readiness & Audit Automation (e.g., EU AI Act, NIST AI RMF, ISO/IEC 42001) (HDAAAMAE)

Keywords

• Formal verification software
• Specification authoring tools
• Temporal logic systems
• Autonomous driving safety
• AI system verification

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. SpecForge Software Licenses: The company derives revenue from software licenses for the SpecForge platform, which provides AI-powered formal specification and verification tools. Pricing is quote-based for enterprise deployments.
2. Technical Consulting and Pre-Sales Support: Revenue from technical consulting services including pre-sales technical support, requirements analysis, and solution design for enterprise customers implementing formal specification workflows.
3. Implementation and Onboarding Services: Post-sale implementation engineering and onboarding support, including translating natural language specifications to formal specifications using the company's DSL and integrating with customer development ecosystems.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

Imiron develops and sells SpecForge, an AI-powered formal specification and analysis platform that enables developers to create mathematically rigorous system specifications through iterative formalization and analysis. The platform uses the proprietary Lilo domain-specific language based on Signal Temporal Logic (STL) to describe and verify system behavior for mission-critical AI systems including autonomous vehicles, robotics, and manufacturing automation. Imiron also provides related consulting, pre-sales technical support, and post-sale implementation services for enterprise deployments.

Product overview

Imiron offers a unified product platform centered on SpecForge, an AI-powered formal specification and analysis tool. SpecForge is the core product that uses Lilo, a domain-specific language based on Signal Temporal Logic, to help developers create mathematically rigorous system specifications. The platform includes a VSCode extension for IDE integration and a Python SDK for programmatic access. The product portfolio enables specification-driven development for mission-critical systems in autonomous vehicles, robotics, and manufacturing.

Differentiator

Problem solved

Functional benefit

Brands

• SpecForge: An AI-powered platform for developers to forge rigorous and precise system specifications through an iterative process of formalization and analysis, based on the Lilo domain-specific language designed for specifying temporal systems.

Products and services

• SpecForge AI-powered formal specification and analysis platform based on Lilo DSL (domain-specific language) for temporal systems. Enables developers to forge rigorous system specifications through iterative formalization and analysis using Signal Temporal Logic (STL). Designed for engineers and architects of mission-critical AI systems in autonomous vehicles, robotics, and manufacturing.
• Lilo Domain-specific expression-based temporal specification language designed for specifying hybrid systems. Used as the foundation for SpecForge's formal specification authoring capabilities.
• SpecForge VSCode Extension Visual Studio Code extension providing syntax highlighting, type-checking, warnings, and spec satisfiability checking for Lilo specifications. Enables developers to write, analyze, and verify formal specifications directly within the IDE.
• SpecForge Python SDK

Named customers2 records

Segments5 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability5 records

Feature7 records

Partnerships

Three partnerships are on record, tiered flagship, core and foundational.

• Plug and Play JapanflagshipGTM or Marketing Partner · 10 June 2026Selected for Summer 2026 Batch of Plug and Play Japan's accelerator program. Provides access to global innovation platform and network of 550+ corporate partners. Program aims to accelerate enterprise PoCs for mission-critical AI system verification platforms through global innovation ecosystem.
• T2 Inc.coreStrategic or Co-development Partner · 1 August 2025Joint verification project for formal safety argumentation aimed at obtaining Level 4 autonomous driving approval for autonomous trucks. Project started August 2025. T2 provides autonomous driving routes and scenarios; Imiron provides formal safety proof framework using GA-RSS mathematical safety argumentation. This is Japan's first practical application of logical proof for autonomous driving safety.
• National Institute of Informatics (NII)foundationalStrategic or Co-development Partner · 20 August 2024Imiron is a spin-off from NII, based on JST START program results. Founded by researchers from NII including Prof. Ichiro Hasuo. Company leverages advanced research in formal methods and temporal logic from NII.

Scale indicators6 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Runtime Verification Inc. Runtime Verification builds formal verification tools for smart contracts, autonomous systems, and aerospace, with academic roots from the University of Illinois. Directly comparable to Imiron in applying temporal logic and formal methods to runtime safety monitoring of mission-critical systems, with similar research-to-startup origin.
• AdaCore: AdaCore provides Ada/SPARK programming language tools for high-assurance and safety-critical software with formal verification capabilities (SPARK Pro). Directly comparable as a formal verification tooling vendor serving aerospace, automotive, and embedded systems with proven enterprise customer base.
• Edge Case Research: Edge Case Research delivers safety and reliability solutions for autonomous systems, including formal hazard analysis and safety case development. Comparable in providing formal argumentation for autonomous system safety, though with more focus on safety case consulting than tooling.
• Galois Inc. Galois applies formal methods and verification to safety-critical and high-assurance systems for defense, aerospace, and autonomous systems. Directly comparable to Imiron as both specialize in applying formal verification to mission-critical software, with similar research-driven engineering culture.
• Foretellix: Foretellix provides scenario-driven verification and validation for autonomous vehicles using measurable coverage and formal specification languages. Closely aligned with Imiron's mission of mathematically proving autonomous driving safety and serving similar automotive OEM and autonomous mobility customers.
• Apex.AI: Apex.AI develops safety-certified autonomous driving software stack including Apex.OS and safety frameworks. Comparable to Imiron as both serve autonomous driving safety needs with rigorous software development methodologies, though Apex focuses on full OS/middleware rather than specification tooling.

Broad incumbents

• ANSYS: ANSYS provides simulation, digital twin, and verification tools across automotive, aerospace, and industrial markets including Ansys SCADE for safety-critical embedded software. Comparable to Imiron's mission of verifying complex system behavior, though serving a much broader engineering simulation market.
• NVIDIA (DRIVE / Halos): NVIDIA DRIVE and Halos provide autonomous driving compute platforms with safety frameworks including formal verification components. Comparable in addressing autonomous driving safety assurance, but as part of a broader AI compute platform rather than a standalone specification tool.
• Real-Time Innovations (RTI): RTI provides Connext DDS for real-time autonomous systems with safety certifications for automotive and medical applications. Comparable in serving autonomous system safety needs across automotive, medical, and industrial domains, though focused on real-time middleware rather than formal specification.
• MathWorks: MathWorks provides MATLAB and Simulink, the dominant platform for model-based design and verification in automotive, aerospace, and embedded systems. Broadly comparable to SpecForge as it enables simulation, code generation, and formal verification workflows for safety-critical systems, but with significantly broader scope and market presence.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• GitHubgithub.com/imiron-io/specforge-examples

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds2 records

Investors4 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 Imiron