Work and live as you like

We are Cloud Infrastructure and service provider,
and offers customer support for your infrastructure.

Cp image

Working style in Annotation

Work from home, Childcare People, Caregiving People, Disabled People, Foreigners, LGBT Peopel, Mutual understanding, Individuals, Diversity, possibility of consciousness, Our aim is "Work and live as you like" .

  • Childcare people
  • Caregiving people
  • Disabled people
  • LGBT
  • Foreigners

Current job openings

We are looking for candidates on below available positions.

  • Infrastructure
    AWS Cloud Infrastructure support Engineer(AWS)
  • Back OfficeBack office support:- Responsible for General Affairs and support to Infrastructure Engineers

Application for us

If you are interested in working with annotation please click below to submit entry form.


Annotation Corp. sponsored Information services, Exhibitions and Events.


Title Annotation, Inc.

Head Office
8F Sanpo Sakuma Building 1-11 Kandasakumacho Chiyoda-ku, Tokyo 101-0025

Kudankita Office
Nippo Kudanshita Building 1-3-1 Kudanshita Chiyoda-Ku, Tokyo 102-0073

Iwamoto-cho Office 1
3F/5F Itopia Iwamotocho ANNEX Building 2-14-2 Iwamotocho Chiyoda-ku, Tokyo 101-0032

Iwamoto-cho Office 2
5F Itopia Hashimoto Building 2-11-9 Iwamotocho Chiyoda-ku, Tokyo 101-0032

Sapporo Office
10F Sapporo Brick Cube 1-1-1 Kita 3-jo Nishi Chuo-ku Sapporo-shi, Hokkaido 060-0003

Joetsu Office
Furusatto 5-1-5 Yamato Joetsu-shi, Niigata 943-0861

Osaka Office
7F/10F Higobashi Center Building 1-9-1 Edobori Nishi-ku Osaka-shi, Osaka 550-0002

Okayama Office
Ryobibanzancho Building 9F Banzancho 3-7, Okayama Kita-ku, Okayama 700-0818

Fukuoka Office
11F Daihakata Building 2-20-1 Hakataekimae Hakata-ku Fukuoka-shi, Fukuoka 812-0011

Naha Office
11F Ryukyu Lease Sogo Building 1-7-1 Kumoji Naha-shi, Okinawa 900-0015

Annotation Seoul Inc.
Yuwon Building 11F 116, Seosomun-ro, Jung-gu, Seoul, Republic of Korea 04513

Establishment 7th July, 2011
CEO Uomi Kentaro
Capital 20 million yen
Main Bank MUFG Bank, Ltd.
Business Consulting, operation of AWS Cloud
Consulting, operation, and development of Web Applications
Associations Labor and welfare general business owner action plan(
Ministry of health Labor and welfare supporting balance of work and nursing care participating companies
Ministry of health measures against cancer
Tokyo metropolitan government BCP formulation support project
Osaka metropolitan government LGBT Leading company
Sapporo metropolitan government LGBT friendly company
Tokyo working foundation Training for people with disabilities, commissioned company
Tokyo working foundation Employment support for people with disabilities work experience practical training practicable company

Message from the Representative

Annotation was founded in July 2011, for skilled Engineers and creators to develop and support the enterprises systems efficiently.

Nowadays the environment is changing swiftly. In the same way various new technologies and services are emerging and getting old as time progress.

Companies should look at the technology and service trends, then accordingly select the appropriate technologies and services to build their own systems. To build efficient systems, engineers possess prolific technology development skills.

However, many engineers are require to acquire the skills of new technologies and services in timely while doing day to day development. But, it is difficult to master in the state-of-art of the cutting-edge technologies in the process of daily development activities.

Who want to use their skills to contribute for company business and having enthusiasm to gain the state-of-art of technologies, but unable to acquire them. For those Engineers and creators Annotation is the right place.

Annotation is a Classmethod group company. Classmethod Develops the Web applications, systems and Cloud infrastructure. Our Annotation members know-how Classmethod makes the applications and optimum business environment and solutions to the customers.

Annotation welcome you to consult us for those who are Engineers and creators and would like to acquire skills to develop the efficient system applications.

We are looking forward to meet you.

Kentaro Uomi

Information Security

Annotation is a socially responsible company dealing with information technology.
We understand and value to the importance of personal information protection and information security, and we strictly follow the information security policies and implement across the world.

We use AWS as platform for business operations and to protect and secure assets information (We get the information from customers for internal purpose to know-how). We formulate(plan or prepare) the security policy and implement the following measures for our customers to protect from various security threats.

  1. Building an information security management system to prevent unauthorized access to information assets, loss of information assets, in addition to that we take appropriate actions to prevent and measure the malware functions. information security.
  2. We provide necessary training on importance of assets informations to improve the operations and maintenance of information security measures.
  3. We comply with all laws, regulations, and customer requirements related to information security that we use in our business activities.
  4. We establish, implement and maintain information security measures, and perform regular check and effort to continuous improvements.

We commit and carefully handle the personal information and management personal information Under the privacy policy management act.

We conduct personal information protection, privacy & policy awareness-raising trainings to our Executive and employees. And we protect the personal information based on following information privacy policy management. Our Formulated personal information privacy policies as follows

Personal Information Protection Policy

  1. We acquire the necessary information by lawful and fair methods and we manage personal information in appropriate manner.
  2. To ensure the security of personal information, we take safety measures in terms of technology and management, and strive to prevent unauthorized access, loss, destruction and leaks of personal information.
  3. We comply with applicable laws and regulations and other norms to handle the personal information.
  4. We formulate a compliance program for personal information protection and we continuously improve to protect the personal information.