| 1901 |
Seiro Hikari, Japan Advertising Co., Ltd., and Telegraph Communications founded |
| 1913 |
Contributed to the establishment of the 'Newspaper Association' |
| 1951 |
Start of private radio broadcasting, new radio station established at headquarters |
| 1953 |
Start of private television broadcasting, new radio and TV stations established at headquarters and Osaka branch |
| 1953 |
Start of private television broadcasting, new radio and TV stations established at headquarters and Osaka branch |
| 1955 |
Company name changed to Dentsu Inc. |
| 1959 |
Established marketing department to promote marketing introduction, opened New York office |
| 1964 |
Cooperation for the Tokyo Olympics |
| 1970 |
Cooperation for the Osaka Expo |
| 1974 |
Dentsu ranked first in global handling volume in 1973 according to U.S. 'Advertising Age' magazine |
| 1980 |
Established Beijing office ahead of global advertising companies |
| 1984 |
Cooperation for the Los Angeles Olympics, established international sales network 'DYR' with Young & Rubicam in the U.S. |
| 1989 |
Achieved sales of 1 trillion yen in the fiscal year ending March 1989 |
| 1996 |
Participated in the establishment of Cyber Communications Inc., Japan's first internet advertising company |
| 1997 |
Hit hit with animated film 'Princess Mononoke' co-produced with Toku-chan Publishing and others |
| 1998 |
Cooperation for the Nagano Winter Olympics |
| 2000 |
Established 'Bcom3 Group' with Leo and McManus groups in the U.S. |
| 2001 |
Celebrated 100th anniversary, listed on TSE First Section |
| 2002 |
Cooperation for the 2002 FIFA World Cup Korea-Japan, Bcom3 merged with Publicis Group of France, capital participation in Publicis Group |
| 2004 |
Split common stock (1:2) |
| 2007 |
Achieved sales of 2 trillion yen in the fiscal year ending March 2007 |
| 2008 |
Dentsu Holdings USA acquired McGarry Bowen, approximately 60 billion yen of treasury stock acquired |
| 2009 |
Split common stock (1:100) |
| 2010 |
Established Dentsu Digital Holdings |
| 2012 |
Agreed to sell shares after strategic alliance with Publicis Group, contract termination |
| 2012 |
Agreed to sell shares after strategic alliance with Publicis Group, contract termination |
| 2012 |
Agreed to sell shares after strategic alliance with Publicis Group, contract termination |
| 2013 |
Acquired UK advertising firm Aegis Group, established 'Dentsu Aegis Network', announced 'Dentsu 2017 and Beyond' mid-term management plan, conducted capital increase |
| 2013 |
Acquired UK advertising firm Aegis Group, announced 'Dentsu 2017 and Beyond' mid-term management plan, conducted capital increase |
| 2014 |
Designated as marketing exclusive agency for Tokyo Olympics and Paralympics Organizing Committee |
| 2014 |
Designated as marketing exclusive agency for Tokyo Olympics and Paralympics Organizing Committee |
| 2015 |
Acquired approximately 20 billion yen of treasury stock, announced mid-term CSR plan |
| 2016 |
Transition from company with audit & supervisory board to company with audit committee, established 'Dentsu Digital', acquired majority stake in US independent company 'Markle' |
| 2017 |
Toshihiro Yamamoto appointed as 13th president, acquired approximately 20 billion yen of treasury stock |
| 2018 |
Announced 'Dentsu Group Mid-term Policy' and began considering transition to pure holding company system (target January 2020) |
| 2018 |
「電通グループ中期方針」を発表、および純粋持株会社体制への移行に向けた検討の開始 |
| 2022-06 |
Dentsu Creative, an award-winning global creative agency network, was established in June 2022, integrated with dentsu’s Media and CXM businesses in over 145 countries and regions, to offer Integrated Growth Solutions |
