More than just translation...

Empowering Words, Delivering What Truly Matters.

Uncompromising Expertise and Commitment to Excellence

NAIway Translation Service is operated by NAI Inc., a company founded in 1995. As a leading expert in English editing and translation for the natural sciences, we are consistently chosen for our exceptional quality."

NAIway Translation Service, specializing in professional translation, proudly upholds the same unwavering commitment to expertise and uncompromising quality.

Versatile Solutions Tailored to Your Needs

We offer expert translation services across a diverse range of fields—from highly specialized areas such as law, medicine, and engineering to more general domains like tourism, menus, and anime.

With support for over 30 languages, we provide seamless multilingual translation solutions in a single request.

Our high client retention rate is a testament to our quality and reliability. Trusted by corporations, universities, and research institutions, we have a proven track record of delivering precise and sophisticated translations.

Coordinator's Skill in Smooth and Strategic Alignment

At NAIway, your dedicated coordinator will assess your content and recommend one of the following translation plans:

  • AI Translation – If AI translation is deemed the most cost-effective and high-quality option, we leverage cutting-edge AI technology.
  • Human Translation – If a human touch is essential, an experienced professional translator will handle your content.

In both cases, every translation undergoes rigorous Quality Assurance System (QAS) by highly skilled bilingual experts with deep domain knowledge, ensuring exceptional accuracy and quality.

Our dedicated coordinators conduct in-depth consultations to fully understand your requirements and key translation considerations, providing meticulous support every step of the way.

コーディネーターのチームリーダー達

With the motto "Bridging cultures and languages to bring smiles," we are dedicated to delivering the highest quality translations and continuously strive for excellence every day.

Please feel free to contact us.

Certified under ISO 17100, the international standard for translation quality assurance.

We believe that a translation company’s mission is to understand the diverse needs, objectives, and quality expectations of its clients and deliver results that align with the desired quality, turnaround time, and cost. However, translation quality can only truly be assessed once the final product is delivered.

To eliminate this uncertainty, we proactively obtained ISO 17100 certification, a globally recognized benchmark for translation quality.

By adhering to international standards, we ensure consistent quality and reliable service. After carefully listening to your requirements, we propose the optimal translation plan tailored to your needs.

Feel free to reach out to us anytime!

Certification scope: "Japanese to English, English to Japanese"

A: Finance, Economics, and Legal
B: Medical and Pharmaceutical
C: Industrial and Science & Technology
E: Other Fields


What is ISO 17100?

ISO 17100 is an international standard (published in May 2015) that defines the requirements for all aspects of the translation process that directly impact the quality and delivery of translation services.

It sets minimum requirements for translation service providers (TSPs), covering key aspects such as core process management, translator qualifications and competencies, resource availability and management, and quality control measures necessary to ensure high-quality translation services.

(Source: Japan Standards Association, Certification Services Website)

ISO17100のロゴマーク
Mr. I from the System Company

"I appreciate the swift and precise response."

Mr. Y from a Food Import Company

"They flexibly accommodate even the most detailed requests."

Mr.K from Web Design Company

"We can request translations for multiple languages, including lesser-known ones, all at once."

Additional Testimonials from Our Valued Clients

Professional Business Localization

"Struggling with translation companies that refuse to make revisions after delivery...?"

You only truly identify the quality of a translation once it's delivered. Yet, many translation companies refuse to make revisions or charge extra for them—that's frustrating.

With NAIway, you don’t have to worry about that. As part of our aftercare service, we offer a standard one-week review period after delivery, during which we promptly and carefully address any questions or revision requests you may have.

AI Translation x Check

AI translation has become remarkably reliable. But when it comes to English-to-Japanese translation, how can I be sure of its accuracy...?

AI translation technology between Japanese and English has reached an astonishing level of accuracy. However, Japanese is a highly complex language—subtle differences in expression can completely change the reader's interpretation.

That’s why bilingual checks by native Japanese translators living in Japan are absolutely essential.

At NAIway, our handpicked team of experienced and highly skilled professional translators proofreads AI-generated translations, correcting any misinterpretations to ensure a natural and seamless final text. With us, you can trust that your translation will read flawlessly to any audience.

Survey Questionnaire Translation

Can you provide properly localized translations tailored to the target audience?

Short sentences don’t always mean easy translation—especially when it comes to survey translation. To obtain accurate results, surveys must be translated using terminology and phrasing that align with local contexts.

At NAIway, we ensure proper localization by understanding the survey's content and overall structure while capturing the intent behind each question. Additionally, upon request, we can align translations with past versions for consistency.

Please feel free to contact us.

Supported languages

We support over 30 languages, including Japanese, English, Chinese, and Korean, as well as Spanish, French, Thai, Vietnamese, and more. For less common languages, translation may still be possible via English, so feel free to reach out and discuss your needs with us.

Supported fields

Highly specialized translations are handled by experienced translators with expertise in each field. Additionally, we conduct a preliminary consultation to understand your needs and select the most suitable translator, ensuring top-quality translation services.