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Group and Companies

Atstream Group collectively refers to Atstream Corporation, our holding company, and Atstream Consulting Corporation, and Atstream Partners LLC, our business firms.

We have two business firms: Atstream Consulting, which offers expertise while amplifying the value of the "team as a whole," and Atstream Partners, which provides unique services by offering the expertise of the "professional."
As a business entity that makes the best use of the unique characteristics of each member, we flexibly respond to the diversifying consulting needs of our clients.

For the features of each business firm, please visit Atstream Consulting Corporation and Atstream Partners LLC.

Established	July 30,2001 : Atstream Corporation (Holding company) April 24,2018: Atstream Consulting Corporation (Business firm) April 24,2018: Atstream Atstream Partners LLC (Business firm)
Capital	￥19.50 million : Atstream Corporation (Holding company) ￥43.05 million : Atstream Consulting Corporation (Business firm) ￥24.00 million : Atstream Atstream Partners LLC (Business firm)
Board Members	Atstream Corporation President：Hiroshi Daikuya Advisor：Kenji Hirayama Advisor：Satoshi Adachi Adbisor：Masahito Nakahira Part-Time Director：Kohei Shingu Atstream Consulting Corporation CEO＆President：Satoshi Adachi Senior Managing Director：Wataru Watanabe Senior Managing Director：Kohei Shingu Senior Managing Director：Hiroki Matsunaga Managing Director：Manabu Ito Managing Director：Tetsuji Sugimoto Managing Director：Sunao Nishimura Part-Time Director：Hiroshi Daikuya Atstream Atstream Partners LLC CEO / Managing Partner：Hiroshi Daikuya Honorary Partner：Masahito Nakahira Partner：Toru Kawakami Partner：Fumiko Sato Partner：Tatsuyuki Tsukahira Consulting Fellow：Kenji Sugihara
Services	Corporate management consulting work and research study Education and training related to the above Services
Our Credo	"Integrity, Accomplishment, and Continual Growth," Our Credo
Offices	Tokyo Office Burex Kyobashi 7F, 2-7-14 Kyobashi, Chuo-ku, Tokyo, 104-0031 Japan Access Map Osaka Office Yodoyabashi Center Bldg. 12F, 3-4-10 Koraibashi, Chuo-ku, Osaka, 541-0043 Japan Access Map Nagoya Office Nishiki Park Bldg. 7F, 2-4-3, Nishiki, Naka-ku, Nagoya, 460-0003 Japan Access Map Hiroshima Office Building Hirotake Otemachi 2F, 2-2-9, Otemachi Naka-ku, Hiroshima, 730-0051, Japan Access Map
Tel/Fax	Tel：050-3733-6913 Fax：050-3733-6915
URL	JN：https://www.atstream.co.jp/ EN：https://www.atstream.co.jp/en/
E-mail	query@atstream.co.jp
History	July 2001：＠Stream established (currently Atstream Corporation) in Osaka, Japan with a team of former Arthur Andersen Business Consulting partners and senior managers. September 2001：Opens Tokyo office. February 2003：Opens Nagoya office. June 2007：Changes name to Atstream Co., Ltd. September 2007：Relocates the Tokyo office to Kyobashi Chuo-ku ,Tokyo as the new headquarters. September 2008：Concludes a business alliance agreement with Plante & Moran, PLLC. May 2009：Establishes US subsidiary. August 2009：Opens Shanghai office. January 2011：Establishes China subsidiary. June 2012：Closes China subsidiary. April 2014：Opens Hiroshima office. December 2015：Closes US subsidiary. July 2018：Spins off Atstream Co., Ltd. into a holding company and two business firms, launching the Atstream Group with a three-company system.