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TRUNK Corporation

TRUNK株式会社TRUNK, Inc.Alias
Ticker
—
Listed market
—
Country
Japan
Employees (non-consolidated)
—
Related companies
6
§01

Basic information

BASIC
Head office
3F B, NC Building, 1-9-4 Jinnan, Shibuya-ku, Tokyo
Chief executive
Ryo Nishimoto
Capital
Employees (non-consolidated)
Employees (consolidated)
Start date
2015-07-01
End date
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Websites

1 DOMAINS
§03

Business

1
Development and operation of enterprise e-Learning (LMS)
§04

Related companies

6 COMPANIES
Company name Group Parent Subsidiary Customer Supplier Alliance Bank Shareholder
Sales Marker Inc.
Customer
S-Cube
Alliance
テンプスタッフ
Alliance
SunNexta Group Inc.
Bank
Iinokoto Gakuen School Corporation
Bank
One Career Co., Ltd.
Bank
Names without a link are companies not yet registered in OpenBizGraph
§05

Network

NETWORK
Drag to move · click to open
§06

History

8 EVENTS

Established: July 1, 2015Sources

EstablishedSources

Revised: November 23, 2015Sources

RevisedSources

Revised: August 7, 2019Sources

RevisedSources

Revised: February 22, 2022Sources

RevisedSources

§07

News

31 ARTICLES

Release of Information Security Training Video on WorkschoolSources

TRUNK Corporation has added new video content to the information security training course on the online training service "Workschool." The videos illustrate attack methods and data leakage scenarios that are difficult to understand through text alone, enhancing employees' learning effectiveness and practical application.

Add Mental Health Course to WorkschoolSources

On September 30, 2026, TRUNK officially released a mental health course on the online training service "Workschool". The course consists of two types: one for general employees to protect their own mental health, and another for managers to recognize and address the well-being of their subordinates and teams.

Release of Compliance Course Video Content on WorkschoolSources

TRUNK Corporation, which operates the online training service Workschool, added video content to its compliance course (for all levels). Under the supervision of Attorney Tomu Yudaka of Yudaka Law Office, the course consists of 23 parts. In response to corporate requests, the learning material was enriched to include not only explanations of regulations but also specific scenarios presented in video.

Recruiting Exhibitors for “Generative AI and Online Administrative Skills for Work”Sources

Chuo Ward’s training program, operated by TRUNK Inc., will hold an employment matching event on November 26, connecting women who have learned generative AI and online administrative skills with companies. The in-person networking event is recruiting six exhibitors. Participating companies can meet women with generative AI skills and recruit them without recruitment fees.

Workschool Partners with Yokohama City to Introduce Program Graduates at No CostSources

Workschool is partnering with Yokohama City to run a program for women to acquire web marketing and generative AI skills. Graduates are introduced to companies completely free of charge, with no recruitment fees. Workschool meets employers' hiring needs through in-person matching events and individual introductions.

Workschool Expands E-Learning Through Partnership with ShoeishaSources

Workschool, TRUNK Inc.'s online training service, established a framework for offering e-learning using IT, business, and professional qualification book content owned by Shoeisha. The companies aim to support corporate talent development more effectively by combining Shoeisha's trusted publishing content with Workschool's approach to sustainable learning and practical, workplace-ready skills. They plan to expand the available content over time.

Nerima Women’s Digital Skills Job-Matching EventsSources

TRUNK Inc. will hold six in-person job-matching events from December 2026 as part of Nerima Ward’s digital skills program for women and is seeking participating companies. Seven companies can join each session, and applications for multiple sessions are welcome. Participating companies can meet skilled women directly and recruit at no cost.

Workschool Officially Releases Logical Thinking CourseSources

TRUNK Inc. has officially released a logical thinking course on its online training service Workschool in response to requests from businesses. Supervised by Professor Hayashi of Musashino University, the course systematically covers frameworks such as MECE, logic trees, and the pyramid principle.

Workschool Officially Launches Bookkeeping Level 3 CourseSources

TRUNK Inc. officially launched a Bookkeeping Level 3 course on its online training service, Workschool. The qualification is in high demand among companies seeking employee certification, and the course was developed in response to customer requests. It systematically covers the full scope of the Japan Chamber of Commerce and Industry Level 3 exam, from journal entries to reading financial statements. Video lessons and practice exercises help learners build understanding efficiently in short sessions.

Workschool Releases Introductory CAD CourseSources

TRUNK Inc. has officially released an introductory CAD course on its online training service, Workschool. In response to growing demand for CAD skills and a shortage of practical learning materials, the course was developed under the supervision of Katsuyasu Arai of Fujimi Consultant. It carefully covers points beginners often find challenging.

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Public records

GOV
National Tax Agency basic information5011001106251
Source: National Tax Agency Corporate Number Publication Site, basic three itemsSources
Trade name
TRUNK株式会社
Trade name (kana)
トランク
Name in English
Corporation type
301
Address
〒150-0041 東京都渋谷区神南1丁目9番4号NCビル3階
Postal code
1500041
Prefecture code
13
City code
113
Address outside Japan
Prefecture in English
City in English
Address outside Japan in English
Corporate number assignment date
2015-10-05
Update date
2018-04-02
Change date
2017-04-04
Registry closure date
Reason for registry closure
Successor corporate number
Details of the change
Latest record
1
Excluded from search
0
Processing type
11
Correction type
1
Trade name image ID
Address image ID
Sequence number
1940287
METI gBizINFO5011001106251
Source: gBizINFO (Ministry of Economy, Trade and Industry)Sources
Corporate number
5011001106251
Trade name
TRUNK株式会社
Trade name (kana)
トランク
Trade name (alphabet)
Registry closure date
Reason for registry closure
Registered address
東京都渋谷区神南1丁目9番4号NCビル3階
Postal code
1500041
Prefecture
東京都
Prefecture code
13
City or district
渋谷区
City code
113
Street address
神南1丁目9番4号NCビル3階
Organisation type
301
Processing type
11
Correction type
1
Status
Representative
Capital
Employees
Employees (male)
Employees (female)
Business summary
Website URL
Year founded
Business category
Date established
Unified government qualification - grade
Unified government qualification - business items
Update date
2018-04-02
Key information
5011001106251
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Sources & updates

SOURCES
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