Translation company in Tokyo and Ho Chi Minh City
Translation services for your global business
Work with native-speaking translators and subject specialists for clear, natural communication. Green Sun handles legal, technical and medical content in Japanese, English and other Asian languages.
2005Founded in Ho Chi Minh City
2Offices in Tokyo and Ho Chi Minh City
15Asian languages
AsiaLanguage expertise for global teams
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We respond to every request by email
Language services for every business team
From a single contract to a multilingual product launch, we help you choose the right language services for your content and audience.
Translation services
Translation of legal, technical, medical and business documents by subject specialists, in Japanese, English and Asian languages.
Machine translation post-editing
Linguists refine output from Google Translate, DeepL or your own engine into accurate, publish-ready text.
Translation memory and alignment
We align your past translations into clean translation memories and parallel data for CAT tools and machine translation.
AI data services
Speech and text data collection, transcription, annotation, language data creation and human evaluation for AI teams.
Website, app and game localization
Software, UI and web content adapted for Japanese and Asian markets.
Multilingual DTP
We format translated manuals, brochures and reports to match your original design.
Who we work with
Language support for specialist teams
We support translation agencies, legal teams, manufacturers and AI developers, each with distinct language requirements.
Language service providers
Agencies in the US, Australia and Singapore
The challengeJapanese projects arrive faster than your in-house linguists can handle.
What you getA reliable Japanese translation partner that provides prompt quotes and consistent terminology.
Legal and compliance
In-house counsel and finance departments
The challengeOne wrong term in a contract or filing can change its meaning.
What you getAccurate, clearly written translations, with your documents handled confidentially.
Engineering and quality
Manufacturers and medical device makers
The challengeManuals and regulatory files must be exact, and the deadline is fixed.
What you getClear, accurate technical translations for your engineers and auditors.
AI and data teams
Machine translation and language-model builders
The challengeRaw parallel text is noisy, misaligned and inconsistent.
What you getClean, aligned parallel data for training and evaluating language models.
Translation by business sector
Language services tailored to each sector’s content, compliance and delivery requirements.
Gaming
Localize UI, in-game text and store pages so players in every market get the same experience.
Finance & Banking
Communicate financial performance to stakeholders with accurate translations of reports and disclosures.
Legal
Support legal and regulatory processes with precise translations of contracts and official documents.
Media & Entertainment
Take content to global audiences with subtitles, narration scripts and recording support.
Life Sciences
Support safety and compliance with accurate translations of medical and pharmaceutical documents.
Travel & Hospitality
Welcome visitors with websites, guides and menus that read naturally in their language.
Retail & E-Commerce
Sell across markets with localized product pages, listings and campaigns.
Manufacturing
Keep engineers and operators aligned with clear technical and training documents.
More sectors we support
The same specialist approach applies across other fields.
Discover the right translation service for your field. Is your industry not listed? Tell us.
Why choose Green Sun
Specialist expertise, consistent quality, competitive pricing and responsive support.
Strict quality control
Our quality process combines specialist linguists, human review and QA tools to check accuracy, terminology and formatting.
Affordable rates
Trusted by translation agencies
We provide competitively priced language services for translation agencies and businesses.
Prompt quotes and clear timelines
Send us your files and requirements. We will confirm pricing and the delivery schedule, including options for urgent projects.
Specialized expertise in niche fields
Our experienced linguists handle technical and legal documents with careful attention to terminology, context and industry conventions.
Enterprise language partnership
One team that understands your documents, your terminology and your destination market.
What you get with every project
Native-speaking linguists
Native-language expertise and subject knowledge help preserve meaning, natural wording and the right tone.
Human review
Human review and QA checks are tailored to your project requirements.
Reusable translation memory
Approved text is stored, so terminology stays consistent project after project.
Asian language coverage
One project manager coordinates your Asian language requirements, with Central Asian language support available on request.
How a project works
Scope
Share your files and requirements. We confirm the language pair, subject matter, file format and deadline.
Translate
A linguist with relevant subject expertise translates your content using your glossary and translation memory.
Review and QA
Linguists review the text according to the agreed scope, supported by QA checks for terminology and formatting.
Deliver and reuse
You receive finished files, and approved text is added to your translation memory.
Languages we translate
Our core languages are Japanese, Vietnamese, Indonesian and Thai. We also work with English and other East, Southeast and South Asian languages. Central Asian language support is available on request.
15Asian languages
2Offices: Tokyo and Ho Chi Minh City
4Core languages
Southeast Asian languages
East Asian languages
South Asian languages
Don’t see your language?
Tell us what you need and we will confirm coverage.
What our clients say
Feedback from translation and interpreting companies that outsource work to Green Sun.
Language support for global teams.
Green SunHuman expertise. Global understanding.
“We really appreciate their quick response. On one occasion, an urgent project came up at 9 p.m., and they responded promptly. Thank you for the quick turnaround, affordable prices and well-presented documents.”
“Their prompt replies to our inquiries are a great help. They are always courteous, and we are very satisfied with their support.”
“They are always courteous and do their best to accommodate our requests, even when we ask for something challenging. We are very grateful for their support and look forward to continuing to work with them.”
“Every member of the team responds quickly, which is a great help. We are impressed by the quality of their Japanese emails. They also respond promptly and thoughtfully to questions about delivered work, so we feel confident working with them.”
Frequently asked questions
What services does Green Sun provide?
We provide translation in Japanese, English and other Asian languages, machine translation post-editing, translation memory and alignment, AI data services, multilingual DTP, and website, app and game localization. Central Asian language support is available on request.
Which industries do you cover?
We work across legal services, finance, manufacturing, technology, life sciences, medical devices, media, gaming, travel and retail. Projects are assigned to linguists with relevant subject expertise.
What is machine translation post-editing?
Linguists review and correct output from engines such as Google Translate, DeepL or your own, so the final text is accurate, consistent and ready to publish.
Can you prepare data for AI and machine translation?
Yes. We create and clean translation memories, align parallel text, and prepare domain-specific datasets, with expert review of the results.
Where is Green Sun located?
Green Sun Japan Corporation is in Tokyo, and Green Sun Joint Stock Company, founded in 2005, is in Ho Chi Minh City.
How do I request a quote?
Use the contact page or call us. Please include the language pair, the type of document, the deadline and the files if you have them.
Insights
Guides to translation services across Asia
Practical articles on legal, technical and machine translation.
Ready to go global with Green Sun?
Tell us the language pair, subject matter and deadline. We will provide a quote and a delivery plan.
Tokyo +81-50-6863-5150 | Ho Chi Minh City +84-28-3526-0250