What Fairy Devices does

Fairy Devices Inc., founded in 2007 and headquartered in Tokyo, develops integrated hardware and software for connecting people and machines in industrial and service environments. The company combines proprietary edge AI hardware (THINKLET industrial wearable with 5-channel microphone array and FPV camera; LINKLET livestreaming wearable; Fairy I/O multi-microphone devices including T-01/T-02/T-03 and Tumbler) with its mimi cloud voice AI platform, which provides DNN-based speech recognition, neural machine translation across 10 languages, text-to-speech, speaker recognition, attitude/intention classification, and emotion recognition. The Connected Worker Solution bundles this full stack into an enterprise offering targeting skilled-worker knowledge transfer, remote technical assistance, and AI agent-based workflow checking for noisy industrial environments.

The company monetizes through hardware sales (THINKLET development kit at 99,800-148,000 JPY), subscription and usage-based cloud API fees for mimi, managed enterprise services for Connected Worker Solution deployments, and professional services. Go-to-market combines direct enterprise field sales targeting CXO/VP-level stakeholders at large industrial manufacturers (Daikin, Yanmar), channel partnerships with system integrators (NSSOL reaching 30+ plant sites), developer self-serve through the mimi API console, and technology partner integration (Omron, TIS, Monogokoro, Honda R&D). Deployed across 18 countries, with 2,000+ Connected Worker Solution users across 14 countries as of January 2023 and user count growing approximately 350% year-over-year.

Cumulative funding is approximately 3.1 billion JPY in Series B from strategic CVCs (Daikin, Yanmar Ventures, NTT Techno Cross) plus an earlier ~$4.77M round. The company has earned CES 2022 Innovation Awards in three categories, TIME Best Inventions 2022 recognition, Nikkei NEXT UNICORN 2024 ranking, and 2026 GENIAC-PRIZE 1st place for AI agents. ISO/IEC 27001, 27017, and Privacy Mark certifications position the platform for enterprise and government procurement.

Name

Fairy Devices

Legal name

Fairy Devices株式会社

Website

https://fairydevices.jp

Company type

Private

Founded year

2007

Operating status

Operating

Headcount range

11–50 employees

Short description

Fairy Devices develops integrated wearable hardware and cloud-based voice and multimodal AI for industrial field workers. Its THINKLET, LINKLET, mimi API, and Connected Worker Solution enable remote assistance, tacit knowledge digitization, and AI agent workflow checking for enterprise customers across 18 countries.

Ownership category

akta.pro rank

Product category

Wearable Edge AI Hardware & Voice AI Software

NAICS

Custom Computer Programming Services (541511), Computer Systems Design and Related Services (54151), Computer and Peripheral Equipment Manufacturing (33411), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518)

SIC

Services-Computer Programming Services (7371), Services-Computer Integrated Systems Design (7373), Computer Communications Equipment (3576)

akta.pro primary industry

On-Device Speech & Audio AI (wake word, ASR, enhancement) (HDAAAJAF)

akta.pro secondary industries

Generative AI & LLM Solutions Services (RAG, Agents, Copilots) (BPAEAHAG), Voice Assistants & Voice UI (VUI) (HDAAAFAD), Workplace Automation & Self-Service (RPA for IT, Chatbots, Virtual Agents) (BPAEAIAI), LLMOps & Generative AI Platforms (Prompt/Agent Orchestration, RAG) (HDAEANAD)

Keywords

• Wearable edge AI devices
• Voice AI platform
• Speech recognition APIs
• Connected worker solutions
• Multichannel microphone arrays

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware device sales: Sale of wearable devices including THINKLET, LINKLET, and related hardware. THINKLET development kit priced at 148,000 JPY standalone or 99,800 JPY as part of an AI/DX field verification package. Hardware is sold as one-time purchase with optional rental terms available.
2. Cloud AI API subscription and usage: mimi cloud API service provides speech recognition, translation, and synthesis as subscription or usage-based API calls. Rental fee for FD Devices is charged in monthly units. Cloud services include 4G/LTE SIM options, FPV video analysis tickets, and device replacement guarantees as recurring or per-use items.
3. Connected Worker Solution (CWS): End-to-end enterprise solution from edge device THINKLET to cloud and AI, covering remote working assistance, tacit knowledge digitization, and AI expert development. Provided as a managed service or professional services engagement with enterprise customers like Daikin and Yanmar.
4. Professional services and consulting: Consulting services for full-stack evaluation, design, and implementation of workplace DX solutions. Includes customization of voice AI models, system integration with enterprise databases, and on-site deployment support.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels8 records

Core offering

Fairy Devices develops integrated software and hardware for connecting people and machines, centered on a wearable AI platform. The company sells THINKLET and LINKLET neck-worn wearable devices with multi-channel microphones and cameras, multi-channel microphone hardware (Fairy I/O T-01/T-02/T-03, Tumbler), the mimi cloud AI platform offering speech recognition, 10-language neural machine translation, text-to-speech, and paralinguistic analysis, and the Connected Worker Solution end-to-end enterprise service for remote assistance and tacit knowledge digitization. Customers are primarily large industrial manufacturers, infrastructure operators, government agencies, and developers integrating voice AI via API.

Differentiator

Problem solved

Functional benefit

Brands

• LINKLET: User-friendly wearable device specialized for livestreaming and video-calling, with mobile network and Wi-Fi connectivity enabling hands-free use for outdoor activities, remote working, and tele-education.
• THINKLET
• mimi
• Connected Worker Solution
• Fairy I/O

Products and services

• mimi Voice AI Platform Cloud-based voice AI platform providing automatic speech recognition, 10-language neural machine translation powered by NICT technology, text-to-speech synthesis, speaker recognition, attitude/intention recognition, emotion recognition, automatic language identification, and noise detection. Available via cloud API (console.mimi.fd.ai) and edge deployment. Used by developers, system integrators, and enterprises embedding voice AI into their products and services.
• THINKLET Industrial Wearable Device Neck-worn industrial wearable device with camera, 5-channel microphone array, 4G LTE/Wi-Fi connectivity, and on-device AI chip. Designed for industrial field workers requiring remote technical assistance, tacit knowledge transfer, and AI-ready work recording in noisy environments. Used by Daikin air conditioning service engineers and Yanmar energy system service engineers including Antarctic Syowa Base deployments.
• LINKLET Remote Assistance Wearable User-friendly wearable livestreaming and video-calling device with LTE/Wi-Fi connectivity, 4K first-person view video, hands-free design, and patent-protected technology. Integrates natively with Microsoft Teams and Zoom. Targets remote assistance, retail concierge, tele-education, and outdoor activities. Includes LINKLET service providing user behavior analytics via Datadog and authentication via Auth0.
• Connected Worker Solution (CWS) End-to-end enterprise solution covering THINKLET edge device through cloud and AI, providing remote assistance for industrial field workers, tacit knowledge digitization, and AI expert development. Delivered as a managed service or professional services engagement to enterprise customers including Daikin Industries and Yanmar Energy Systems. Stage 1: remote assistance with data accumulation; Stage 2: AI copilot; Stage 3: AI as team member.
• Tumbler Multi-Microphone Hardware Layout-free multi-microphone hardware device with built-in voice AI processing. Combined with mimi cloud API to provide world-class voice API and voice implementation solutions for smart speakers, meeting transcription (e.g., TIS COET Record Meeting with 16-channel separation), and voice UI applications.
• THINKLET Development Kit AI/DX Field Verification Assurance Pack All-in-one THINKLET development kit package including THINKLET device, developer console, CWS API, 4G/LTE Fairy SIM (1 year), FPV video analysis ticket, and device replacement ticket for AI/DX field verification. Priced at ¥99,800 (¥109,780 tax-inclusive). Enables enterprise developers to evaluate and prototype Connected Worker Solution deployments.
• FPV Video Analytics Plan AI analysis service for first-person view (FPV) videos captured by THINKLET, converting worker actions and situations into structured data. Used for work evidence recording, process analysis, assembly work records, and training/quality evaluation. Offered as ticket-based usage.
• AI Agent for Air Conditioning Service Jointly developed with Daikin Industries, this AI agent captures first-person view video from THINKLET to automatically check air conditioning inspection/repair workflow completeness and notify results to the service engineer's smartphone. Achieved 91% detection accuracy in training facilities and 76% in field conditions. Winner of GENIAC-PRIZE 1st place and AI Agent Award.
• StellarWindow Planetarium Software Tablet planetarium software developed in 2008 using NASA data, sold globally primarily in Japan and Europe. The company's initial consumer product prior to pivoting toward industrial wearable AI.
• Ghost Play Violin-Playing Robot Violin-playing robot using electromagnetic linear actuators. Research product with paper published at NIME 2022. Demonstrates the company's actuator and robotics research heritage.

Quantifiable outcome

• AI detection accuracy of 91% in training facilities and 76% in field conditions for air conditioning service workflow checking (GENIAC-PRIZE project with Daikin)
• +4 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration9 records

AI capability14 records

Feature12 records

Partnerships

Seven partnerships are on record, tiered flagship, core and minor.

• Daikin Industries (ダイキン工業)flagshipStrategic or Co-development Partner · 6 June 2023Flagship strategic partnership for joint development and deployment of Connected Worker Solutions in air conditioning service. Includes joint AI agent development for tacit knowledge digitization (GENIAC-PRIZE 1st place winner), co-marketing (Japan Open Innovation Award総務大臣賞), and financial investment in Series B round. Collaboration spans global air conditioning installation and maintenance operations.
• NTT Techno Cross (NTTテクノクロス)coreTechnology or Integration · 6 June 2023NTT Techno Cross co-developed directional sound collection functionality for THINKLET wearable device, invested in Series B round, and collaborates on media processing technologies. Provides integration expertise for enterprise deployments.
• Yanmar Energy Systems (ヤンマーエネルギーシステム)coreStrategic or Co-development PartnerYanmar Energy Systems deployed THINKLET for remote technical assistance for service engineers maintaining generators and air conditioning equipment. Deployment started July 2021. Collaboration enables remote support from headquarters to field engineers, preventing knowledge silos and ensuring quality maintenance even for complex cases.
• NSSOL / 日鉄ソリューションズcoreChannel Partner/ Reseller/ DistributorNSSOL partnered to integrate THINKLET as a certified device in their IoX workplace safety solutions (安全見守りくん and ARPATIO). NSSOL serves large plant operators in steel, metal, chemical, power, and paper industries with 30+ sites and tens of thousands of users. Partnership enables NSSOL to offer comprehensive workplace DX combining their safety monitoring with Fairy Devices' wearable devices.
• Omron Social Solutions (オムロン ソーシアルソリューションズ)coreTechnology or IntegrationOmron Social Solutions developed station guidance robots using mimi API and T-02 multi-channel microphone hardware. The robots provide multilingual voice dialogue with passengers in noisy station environments. Automatic language identification enables seamless language switching without manual selection. Partnership enables industry-first multilingual voice interaction in public spaces.
• NICT (国立研究開発法人情報通信研究機構)coreStrategic or Co-development PartnerNICT (National Institute of Information and Communications Technology) provides neural machine translation technology powering mimi translation API across 10 languages. Long-standing research partnership enabling Fairy Devices to commercialize NICT's research成果. Also collaborated on automatic language identification technology and participated in METI multilingual translation R&D program.
• Tokyo University / Matsuo LabminorStrategic or Co-development PartnerCPO Yoshifumi Seki co-founded Gunosy while in Matsuo Lab at Tokyo University. Academic collaboration on machine learning, web mining, and NLP research. IPA未踏 projects co-developed with university researchers. Paper publications at top venues (KDD, RecSys, Interspeech, ICASSP).

Scale indicators7 records

Recent moves7 records

Expansion highlights7 records

Direct peers

• RealWear: Industrial-grade wearable headsets for hands-free remote assistance in field service, manufacturing, and inspection — directly overlapping Fairy Devices' THINKLET/Connected Worker Solution use cases with broader global enterprise penetration.
• Vuzix: Wearable AR smart glasses for industrial and enterprise applications, including remote assistance and field worker enablement — a direct hardware competitor in the industrial wearables category.

Broad incumbents

• Zebra Technologies: Enterprise mobility, barcode, RFID, and wearable computer solutions for industrial and logistics workers — broader incumbent providing device + software stacks to similar enterprise verticals.
• Honeywell Voice Solutions: Industrial voice-directed workflow solutions (Vocollect / VoiceLink) for warehouse, manufacturing, and field operations — established incumbent in worker-directed voice technology.
• Cerence: AI-powered voice, gesture, and conversational experiences primarily for automotive but expanding into enterprise/industrial — comparable embedded voice AI architecture.
• Nuance Communications (Microsoft): Enterprise speech recognition, conversational AI, and clinical documentation — broader incumbent with deep enterprise healthcare/contact-center penetration and now part of Microsoft.

Emerging players

• SoundHound AI: Conversational and voice AI platform with speech recognition, TTS, and enterprise agent capabilities — competes with mimi cloud API and overlapping vertical language coverage.
• Scythe Robotics: Autonomous commercial landscaping robots combining edge perception with field deployment — comparable in integrating edge AI hardware with vertical-specific software stacks for outdoor/field work.

Regional players

• Omron Corporation: Industrial automation, robotics, and social solutions — already a Fairy Devices integration partner (station guidance robots with mimi API); also a broader competitor in industrial AI/automation in Japan.
• Preferred Networks: Japanese deep-learning platform company focused on industrial AI, robotics, and edge computing — comparable in Japan-centric industrial AI positioning with much larger funding base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@fairydevicesinc.official5032
• LinkedInlinkedin.com/company/fairydevices

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Funding overview

Funding rounds2 records

Investors11 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 Fairy Devices