| ― Asatsu Inc. | ― Dai-ichi kikaku Co.,Ltd. | ||
| December 1951 |
Establishment of Dai-ichi Kikaku Senden Co., Ltd., at Ginza 7-chome, Chuo-ku, Tokyo, led by Naoya Sakai and Saburo Hotta. Began operations as advertising agency, primarily to handle radio advertising. |
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| March 1956 |
Established headquarters in Mejiro, Toshima-ku, Tokyo, led by current Chairman Emeritus, Masao Inagaki. Began operations as advertising agency in Kayabacho, Chuo-ku, Tokyo, primarily to handle magazine advertising. |
January 1958 |
Growth necessitates moving head office to Ginza 8-chome, Chuo-ku, Tokyo. |
| September 1961 |
Moved head office to Ginza 7-chome, Chuo-ku, Tokyo, and changed name to Dai-ichi Kikaku Co., Ltd. |
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| September 1962 |
Merged with Futaba Kigyou Co., Ltd. (Chuo-ku, Tokyo) and Keishin-sha Co., Ltd. (Edogawa-ku, Tokyo). |
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| May 1967 |
Head office moved to Shimbashi, Minato-ku, Tokyo. |
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| June 1974 |
Created "DIK Network Partners", a business tie-up with local agencies. |
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| November 1974 | Growth necessitates moving head office to Ginza 5-chome, Chuo-ku, Tokyo. |
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| June 1976 |
Business tie-up with Doyle Dane Bernbach, Inc. (currently DDB Needham Worldwide, Inc.). |
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| November 1981 |
Moved head office to Ginza 7-chome, Chuo-ku, Tokyo, and administrative office to current location in Uchisaiwaicho, Chuo-ku, Tokyo. |
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| January 1984 |
Resource and professional tie-up with BBDO International, Inc. (currently BBDO Worldwide, Inc.) of USA. |
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| October 1987 |
Listed on second section of Tokyo Stock Exchange. |
October 1988 |
Merged with Dai-ichi Ad Board Co., Ltd. |
| June 1990 |
Elevated to first section of Tokyo Stock Exchange. |
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| May 1991 |
Establishment of strategic business alliance with Xinhua News Agency of China. |
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| February 1994 |
Establishment of joint-capital venture in Beijing, China, with umbrella company of People's Daily. |
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| July 1995 |
Head office moved to Ginza, Chuo-ku, Tokyo. |
September 1996 |
Went public. |
| August 1998 |
Resource and professional tie-up with WPP Group plc, one of the world's top three advertising organizations. |
| ― Asatsu-DK Inc. | |
| On January 1, 1999 | ASATSU Inc. and Dai-Ichi Kikaku Co., Ltd., merged, marking the beginning of ASATSU-DK |
| January 1999 | Establishment of ASATSU FRANCE S.A.S |
| October 2000 | Establishment of New Delhi Liaison Office |
| November 2000 | Establishment of ASATSU-DK VIETNAM INC. |
| July 2001 | Establishment of Knots Europe B.V. |
| September 2001 | Appointment of Koichiro Naganuma as President & Group COO |
| April 2002 | Establishment of Shanghai Advertising and Decorating Co.,Ltd. |
| July 2002 | ADK Acquires Equity Stake in Animation Studio Eiken |
| November 2002 | Head office moved to "ADK Shochiku Square" Tsukiji,Chuo-ku,Tokyo |
| December 2002 | Establishment of Matsuyama Branch |
| January 2003 | ADK's New Business Alliance with Six Leading North American Creative Boutiques |
| April 2003 | 2003 Establishment of ADK Arts Inc. |
| April 2004 | Establishment of Kanazawa Office |
| July 2004 | Establishment of TRI Communication Inc. |
| December 2004 | Establishment of Drill Inc., a joint venture with Dentsu |
| August 2005 | Establishes The University of Tokyo Asatsu-DK China Education Fund |
| March 2006 | The 50th anniversary foundation |
| May 2006 | Establishment of BOYS Inc. |
| August 2006 | Establishment of CGM Marketing, Inc. a joint venture with Dentsu and Digital Garage |
| September 2006 | Establishment of ASP Co., Ltd. a joint venture with Septeni |
| January 2008 | 2008 Establishment of ADK Dialog Inc. |
| January 2009 | Establishment of Okayama/Takamatsu office by consolidation of Okayama and Takamatsu office |
| January 2009 | Establishment of ADK-FORTUNE PVT. LTD. |
| January 2009 | Establishment of Asatsu (Shanghai) Exposition & Advertising Co., Ltd. |
| July 2009 | Establishment of Moscow Liaison Office |
| March 2010 | Appointment of Masao Inagaki as Chairman Emeritus, Koichiro Naganuma as Chairman & Group CEO, Yoji Shimizu as President & COO |
| March 2011 | Appointment of Masao Inagaki as Consultant・Founder, Koichiro Naganuma as Director, Chairman of the Board |
| August 2011 | Establishment of ADK Digital Communications Inc. |
| March 2012 | Appointment of Koichiro Naganuma as Representative Director, Chairman of the Board |
| March 2013 | Appointment of Shinichi Ueno as Representative Director, President & Group CEO |
