Corporate INFO

Company Name

A3 Co., Ltd.

board member

Representative director:Takeshi Haneji
Outside Director: Moriyoshi Matsumoto
Outside Director: Daisuke Sakuma
Outside Director Seiya Yamamoto
Full-time Audit & Supervisory Board Member :Toshio Fujishima

Establishment dateOctober 14, 2008
Business Content
  1. General casting business
  2. プロモーション事業
  3. Entertainment-specialized comprehensive human resources business
  4. Entertainment-specialized M&A intermediary business
  5. Talent Career
  6. Talent Agent
Member organizationsJapan Advertising Review Organization (JARO), a public interest incorporated association
Capital10 million yen
Number of employees81名(2025年10⽉1日時点)
BankSumitomo Mitsui Banking Corporation
Mizuho Bank
Mitsubishi UFJ Bank
Resona Bank
Higashi-Nippon Bank
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location

Head Office:
Croce Jingumae Building 6F, 3-35-2 Jingumae, Shibuya-ku, Tokyo 150-0001

Kansai Branch Office
1F Urban Ace Kitahama Building, 2-3-7 Hirano-cho, Chuo-ku, Osaka City, Osaka Prefecture, 541-0046

TEL/FAX

03-3475-6042 (Representative) / 03-6434-7387

Entrepreneurs

Naoki Yamamoto

After graduating from high school, he moved to Tokyo with the aim of becoming a bassist. After graduating from music college, he worked as a promotion promoter at Pioneer LDC (now NBCUniversal Entertainment Japan LLC) and as an artist manager at Horipro. After that, he discovered possibilities in the digital field and joined DG Media Marketing. In 2008, he founded A3 Inc.

History

October 2008: Established A3 Co., Ltd. in Setagaya, Tokyo
(providing digital marketing support for the entertainment industry and publishing information magazines for the entertainment industry)

October 2009: Influencer marketing service launched

October 2012: Head office relocated to Shinjuku, Tokyo

September 2014: Head office relocated to Akasaka, Minato-ku, Tokyo

October 2015: Started comprehensive casting business

April 2017: Head office relocated to Minami-Aoyama, Minato-ku, Tokyo

September 2018: Started comprehensive entertainment-focused human resources business

October 2018: Head office relocated to Shibuya-ku, Tokyo

April 2019: Capital alliance with WM Partners Co., Ltd.

April 2019: Capital increased to 10 million yen

July 2019: Global agency services launched

July 2019: Business partnership with Horipro International Inc.

November 2019: Talent second career support service launched

June 2020: Business partnership with Dentsu Tech Imagination Inc. (Shanghai)

In November 2020, Beijing OnlyStar Fashion Information Technology Co., Ltd. (OnlyStar) and its business partnership were established.

February 2021: Started entertainment-focused M&A brokerage business

September 2021, Gold Medal Behind-the-Scenes (Beijing) Entertainment Brokerage Co., Ltd. and Business Partnership

December 2021: Talent stock service launched

July 2022: Talent parallel career support service "Workare" launched

September 2022: Launch of the expert matching service "Taskell Tax"

September 2022: Entertainment Tech recruitment service launched

October 2022: Business partnership with KAZA2NA LLC

October 2022: Executive talent and advisor referral service launched

November 2022: Launch of administrative scrivener matching service "Taskel Administrative Scrivener"

December 2022: Business partnership with Triple Good Co., Ltd.

2022年12月 株式会社トレジャーコンテンツと業務提携

May 2023: Business partnership with TOPPAN Corporation

May 2023: Launch of talent outside director matching service

May 2024: Establishment of Kansai branch office

2024年12月 エンタメ業界人材育成事業「エイスリーアカデミー」開始

2025年5月 タレントエージェント開始