About OTC Inc.

OTC was established in 1973 in Osaka. Branch offices were opened in Tokyo in 1982 and Nagoya in 1988.

Since 1973, OTC has been supporting its client companies in fostering the development of their employees as global business people.
OTC provides various English-language services to a wide range of companies in Japan. It mainly conducts corporate English classes for company employees at their place of work.

Our client companies are major Japanese enterprises. They include many of Japan's largest firms. Their lines of business include general trading, electronics, engineering, chemical manufacturing, pharmaceuticals, insurance, and food production to name a few.

OTC English courses are tailored to clients' needs and requests. In general, the types of courses are regular courses (weekly or bi-weekly), private lessons and intensive courses. OTC plans and designs training programs to provide the most suitable courses to our clients.

Training Programs

Skills Courses for Specific Purposes

We provide various skills courses according to our clients' needs.

  • Presentation
  • Speech
  • Negotiation
  • Meeting
  • Business Writing
  • Work instruction English

Other Languages

We provide flexible training courses in other languages according to the students' needs, level and availability.

  • Chinese
  • Korean
  • French
  • German
  • Spanish
  • Italian
  • Indonesian
  • Thai
  • Portuguese

University Courses

We are involved in teaching academic courses to enrolled students as well as other extracurricular courses offered by tertiary institutions to members of the community.

  • English conversation courses (taught by native instructors)
  • TOEIC and TOEFL courses (taught by Japanese instructors)

ALT (Assistant Language Teaching at Junior High School or High School)

We dispatch part-time or full-time instructors to help with English communication courses. The instructor's role at the school is to help and support students in developing their English communication skills and improve their cultural literacy.

Business Writing Programs

We provide writing courses to improve students' writing communication skills. We also provide academic proofreading sessions for students who are attending conferences and giving presentations.

Other Business Activities

English Proficiency Testing, Chinese Proficiency Testing

  • TOEIC (IP-Institutional Program)
  • ITOP (Interview Test for Oral Proficiency)
  • English proficiency test design and administration for corporations
  • OTC writing and listening comprehension testing
  • OTC basic Chinese listening and writing proficiency testing
  • OTC Chinese interview testing

Correspondence Courses

  • Practical Business e-Mail Writing
  • OTC Self Study Support

Text Development

  • English text series for training at corporations
  • TOEIC text series for training at corporations
  • Chinese text series for training at corporations

Employment Opportunities

OTC hires qualified, experienced and professional native instructors at various times of the year for both part-time and full-time positions. In regards to prospective employees' qualifications, all instructors should be first-language speakers of the language they are expected to teach. They should hold a minimum of a university degree or an equivalent academic qualification. Exceptions may be made where candidates can demonstrate substantial experience and ability in ESL/EFL teaching. In all cases, candidates will have to submit evidence of academic qualifications and details of any prior professional employment. Part-time instructors must be living in Japan and hold an appropriate visa.

Successful candidates will be required to undertake in-house training sessions for teaching, interview testing, correspondence course management and additional follow-up training as required.

If you are interested in a position with OTC, please inquire about our current hiring situation by phone to the personnel section in the area you live.


Osaka Tokyo Nagoya
Areas Covered
(main area)
  • Osaka
  • Hyogo (Kobe, Himeji, Sanda)
  • Kyoto (Kyoto, Fukuchiyama)
  • Shiga
  • Nara
  • Tokyo
  • Kanagawa
  • Saitama
  • Chiba
  • Nagoya
  • Aichi
  • Mie
  • Gifu
Areas Covered
(when requested by clients)
  • Wakayama
  • Mie (Iga)
  • Hiroshima
  • Okayama
  • Yamaguchi (Hofu, Iwakuni)
  • Kyushu (Fukuoka, Nagasaki)
  • Tochigi
  • Ibaraki
  • Gunma
  • Fukushima (Koriyama)
  • Miyagi (Sendai)
  • Hokkaido (Sapporo)
  • Shizuoka (Fuji, Hamamatsu, Shizuoka, Mishima)
  • Shizuoka (Hamamatsu)
Employment Opportunities
As needed
As needed
As needed
As needed
As needed
TEL 06-6743-4077 050-5530-6947 050-5530-6950
Map Osaka Tokyo Nagoya
講師登録 / Entry Entry (Osaka) Entry (Tokyo/Part-time)
Entry (Tokyo/Full-time)
Entry (Nagoya)