Honyaku

What Honyaku does

Honyaku Corporation (株式会社ホンヤク社) is a privately held Japanese language services company headquartered in Tokyo, founded in 1972 and currently employing 51–100 internal staff alongside a network of approximately 1,500 registered freelance translators, interpreters, checkers, and DTP operators. It sells an integrated portfolio of professional language services to enterprise clients across verticals including IT/semiconductor, manufacturing, healthcare and pharmaceuticals, and cross-border M&A and investment. The core product set comprises Expert Translation, Multilingual Translation, Machine Translation with Post-Editing (MTPE), AI-powered voice narration/speech synthesis, Professional Interpretation (simultaneous and consecutive, online and onsite), Annotation Services for AI/ML datasets, technical Documentation/Manual Production (leveraging MT and Simplified Technical English), Language Specialist Staffing and dispatch (派遣・人材紹介), and an integrated "Global Package" managed service for enterprise internationalization. Underlying technology combines third-party machine translation and TTS engines with Computer-Assisted Translation (CAT) tools, Desktop Publishing (DTP) workflows, and human post-editing; the company does not disclose proprietary AI models.

Honyaku monetizes through project-based, quote-priced professional services engagements — no public rate card is available, and pricing varies by language pair, specialization, volume, and deadline. The Global Package offering operates as a managed service bundling translation, interpretation, staffing, and documentation under a single contract. Go-to-market is sales-led and direct: enterprise clients engage via the company website (translatejapan.com), phone (03-6841-1121), and free-estimate inquiry forms; conversion is supported by content marketing through blog, industry news translation, and webinars/seminars. The company maintains a wholly-owned US subsidiary, HONYAKU USA INC, which serves as a regional hub for cross-border services targeting Japanese corporates expanding into North America and US firms requiring Japanese-language support. No revenue, headcount growth, or funding figures are publicly disclosed.

Name

Honyaku

Legal name

株式会社ホンヤク社 (Honyaku Corporation)

Website

https://translatejapan.com

Company type

Private

Founded year

1972

Operating status

Operating

Headcount range

51–100 employees

Short description

Honyaku Corporation is a Tokyo-based language services firm founded in 1972 that provides translation, interpretation, MTPE, AI narration, annotation, staffing, and documentation services to Japanese enterprises and global firms, supported by ~1,500 freelance linguists and a US subsidiary.

Ownership category

akta.pro rank

Product category

Translation and Language Services

NAICS

Translation and Interpretation Services (541930), Translation and Interpretation Services (54193), Computer Systems Design and Related Services (54151)

SIC

Services-Computer Programming Services (7371), Services-Management Services (8741)

akta.pro primary industry

Text-to-Speech (TTS) & Voice Synthesis (HDAAAFAB)

akta.pro secondary industries

Voice Cloning, Dubbing & Audio Generative Media (HDAAAFAK), WebRTC & In-Browser Voice/Video (HDAIAHAH)

Keywords

• Translation services
• Interpretation services
• Language staffing
• Machine translation
• Multilingual localization

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Translation Services: Revenue from expert translation, multilingual translation, and MTPE services billed per project or word count. Projects span specialized fields with quality assurance backed by ISO processes.
2. Interpretation Services: Revenue from conference interpretation (simultaneous and consecutive), both spot派遣 (freelancer dispatch) and regular placement, and remote/online interpretation services.
3. Staffing Solutions (派遣・人材紹介): Language specialist staffing services placing translators, interpreters, checkers, DTP operators, and language staff with corporate clients. Revenue generated from placement fees or ongoing staffing contracts.
4. AI Narration Services: AI voice synthesis/narration services for training materials, corporate communications, and multilingual content production.
5. Documentation / Manual Production: Technical manual creation and multilingual DTP services leveraging translation company advantages.
6. Global Package: Integrated large-scale corporate language solutions combining multiple services for internationalization.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Honyaku Corporation is a Tokyo-based language services company that delivers expert, multilingual, and machine-translation (MTPE) services, AI-driven voice narration, professional interpretation, technical manual production, and AI/ML data annotation. It also operates a specialized language-specialist staffing and recruitment business placing translators, interpreters, checkers, and DTP operators with corporate clients, complemented by a US subsidiary (HONYAKU USA INC) for cross-border engagements.

Product overview

Honyaku Corporation is a comprehensive language services provider with over 50 years of experience offering a portfolio of integrated language solutions. The core offerings include: expert and multilingual translation services (エキスパート翻訳, 多言語翻訳), machine translation with post-editing (MTPE), AI-powered voice synthesis narration services (AIナレーション), professional interpretation services (、通訳サービス), annotation services for AI/ML datasets, technical manual production (マニュアル制作) leveraging AI and STE expertise, language specialist staffing (派遣・人材紹介), and comprehensive global package solutions (グローバルパッケージ). The company operates HONYAKU USA INC as its US subsidiary. Services are provided through a network of approximately 1,500 registered translators and language professionals, supported by ISO international standards for quality assurance.

Differentiator

Problem solved

Functional benefit

Products and services

• Expert Translation (エキスパート翻訳) Specialized translation service for enterprises, leveraging 50 years of accumulated expertise across diverse fields with ISO-aligned quality processes for high-stakes technical, legal, and business content.
• Multilingual Translation (多言語翻訳) Translation service covering multiple languages including English, Chinese, Korean, and Southeast Asian languages for global business communication needs of corporate clients.
• Machine Translation Post-Editing (MTPE) (機械翻訳（MTPE）) Machine translation combined with human expert post-editing to achieve both efficiency and quality in translation output, suited for enterprises with large-volume or time-sensitive translation needs.
• AI Narration / Voice Synthesis Service (AIナレーション（音声合成）サービス) AI-powered voice synthesis service that converts text to natural speech in multiple languages (Japanese, English, Chinese, others) for training materials, corporate announcements, and multilingual content production.
• Related Language Services (言語付帯関連) Complementary language services supporting core translation offerings for enterprise clients with additional linguistic support needs.
• Interpretation Services (通訳サービス) Professional interpretation services including simultaneous and consecutive interpretation for business meetings, conferences, and international events, offered both online and offline with freelancer dispatch options.
• Annotation Services (アノテーションサービス) Data annotation services supporting AI and machine learning development, including labeling for text, images, and multilingual datasets for enterprise AI teams.
• Documentation / Manual Production Services (マニュアル制作) Technical manual production service leveraging AI translation technology and STE (Simplified Technical English) expertise, providing one-stop service from source documents to multilingual manuals for B2B technical documentation.
• Staffing Solutions (派遣・人材紹介) Language-specialist staffing and recruitment service matching companies with translators, interpreters, checkers, DTP operators, and other language professionals through freelance registration and corporate staffing solutions.
• Global Package (グローバルパッケージ) Comprehensive global language solutions package supporting enterprise internationalization with one-stop integrated services including translation, interpretation, and localization for large-scale corporate engagements.
• HONYAKU USA INC (US Subsidiary Services) US-based subsidiary providing local translation and interpretation services for Japanese companies expanding to North American markets and US companies requiring Japanese language services.

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability5 records

Feature7 records

Partnerships

One partnership is on record.

• HONYAKU USA INCcoreOthersUS subsidiary entity of Honyaku Corporation, enabling cross-border language services for Japanese companies expanding to the US market and US companies requiring Japanese language solutions. Website: honyaku-usa.com. The subsidiary operates as a regional hub supporting the parent company's global package service offerings.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• RWS Group: Publicly listed UK-based LSP offering translation, localization, AI training data services, and IP services. Competes with Honyaku across translation, MTPE, and increasingly in AI/annotation services, but at significantly larger scale and with proprietary technology platforms.
• Welocalize: Global LSP and AI data services provider offering translation, localization, and content services for enterprise clients. Competes with Honyaku in enterprise translation and increasingly in AI training data/annotation services.
• TransPerfect: One of the world's largest privately held language services providers offering translation, interpretation, staffing, and localization for enterprise clients globally. Highly comparable to Honyaku's full-service LSP model, but with vastly greater scale, global delivery network, and enterprise footprint.
• SDL (now part of RWS): Historic translation technology and services provider, now part of RWS Group, offering language technology platforms and enterprise translation services. Direct competitor to Honyaku in technology-enabled translation services.
• Lionbridge (now Welocalize under merger): Major global LSP offering translation, localization, interpretation, and AI data services with worldwide delivery. Direct competitor to Honyaku in enterprise translation and AI data services, but at much greater scale and broader geographic footprint.

Direct peers

• Appen: Global provider of data annotation and AI training data services, overlapping with Honyaku's newly launched annotation service and MTPE offerings. Comparable as a peer in the AI data services segment specifically.
• LanguageLine Solutions: Leading interpretation services provider offering phone, video, and onsite interpretation across dozens of languages. Direct competitor to Honyaku in the interpretation services segment specifically.

Others

• IIJ (Internet Initiative Japan) Multi-Family Office: While primarily a network/internet services firm, IIJ's localization and Japanese-language adjacent services provide indirect comparability in Japan's enterprise cross-border support ecosystem relevant to Honyaku's client base.
• Mankind Co., Ltd. (parent related entity): Listed in Honyaku's website footer as the staffing partner for派遣・人材紹介 services, Mankind is a Japanese staffing firm that co-distributes Honyaku's language staffing offerings. Comparable as a direct staffing partner within Honyaku's ecosystem.

Regional players

• HUMAN (Japan-based staffing and language services): Japanese staffing and language services firm providing translation, interpretation, and bilingual staffing to enterprises. Highly comparable to Honyaku's core Japanese-market staffing and translation business and competes head-to-head in Japan.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

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 Honyaku