Why Choose Goonet

Many Used Cars
for sale
We have a lot of
Certified Vehicles
is Listed on the First Section
of the Tokyo Stock Exchange
PROTO CORPORATION is a company that manages Japan's largest used car information site “Goonet”.
Since we are cooperating with second-hand car dealers all over Japan, we can offer the perfect car for you from our abundant inventory.
In addition, the PROTO Group is developing a service called “Goo KANTEI”, in which an appraiser of the Japan Automotive Appraisal Association (JAAA), a third-party organization, appraises used cars.
GOONET EXCHANGE CO., LTD. is a subsidiary company of PROTO Corporation which operates automobile information service called “Goo” in Japan.
As PROTO Group, which consists of more than 10 companies in provide a variety of automobile related services, many of which are leading shares in their specialized fields.
Our aim is to be helpful to people by delivering used cars of superior quality to the world as well as by providing useful automobile related information which PROTO Group has cultivated over the years.

Who Will Respond?

Khemraj Garbuja
Khemraj Garbuja
Sales Supervisor
Speed, kind, and accurate information.
Shinya Kaneko
Shinya Kaneko
Always positive
for our customers.
Miina Ihara
Miina Ihara
Motivation is the passion
to achieve.
Hiroko Yamada
Hiroko Yamada
Always close
communication with you.
Akari Miyazaki
Akari Miyazaki
Always give personalized
service to each and every customer.
Misato Mano
Misato Mano
Deliver new journey
for your life.
Corporate Overview

Corporate Overview

  • Name


  • Capital

    ¥1,849 million

  • Founded

    October, 1977

  • Director

    Kenji Kamiya President

  • Number of Employees

    Consolidated: 1,456 (Parent: 577)
    *As of March, 2020

  • Securities Code



Head Offices

NAGOYA 23-14, Aoi 1-chome, Naka-ku, Nagoya
460-0006, Japan

TOKYO 18-1, Nishi-shinjuku 6-chome, Shinjuku-ku,
Tokyo 160-0023, Japan

Branch Offices
  • Sapporo
  • Sendai
  • Takasaki
  • Tokyo
  • Nagano
  • Hamamatsu
  • Nagoya
  • Kanazawa
  • Osaka
  • Hiroshima
  • Matsuyama
  • Fukuoka
  • Kumamoto

Contact with Us!!