Ihei Sogo opened Yamatoya, the foundation of the company (later Sogo Co., Ltd.), near Zama Shrine in Osaka.

Musashino Railway (later Seibu Railway) established Musashino Department Store (later The Seibu Department Stores, Ltd.).

March

Business alliance with Benimaru Shoji(later York-Benimaru Co., Ltd.),a supermarket in Fukushima Prefecture.

November

• Denny's Japan Co., Ltd. was established.
• York-Seven Co., Ltd. (later SEVEN-ELEVEN JAPAN CO., LTD.) was established.

December

York-Mart Co., Ltd. (later York Co., Ltd.) was established.

February

The Business Reform Committee of Ito-Yokado was launched.

October

Seven-Eleven Japan installed the world's largest POS system.

November

The Seven-Eleven Green Foundation (later the Seven-Eleven Memorial Foundation) was established.

March

A special subsidiary, Terube Ltd. was established.

December

Chengdu Ito-Yokado Co., Ltd. was established in Chengdu, Sichuan Province, China.

September

A joint venture company, Hua Tang Yokado Commercial Co., Ltd. was established in China.

February

7dream.com was established.

August

Seven-Meal Services Co., Ltd. was established.

February

Total Store Sales of Seven-Eleven Japan top the Japanese retail industry.

March

Ito-Yokado launched the IY online supermarket.

April

IY Bank Co., Ltd. (later Seven Bank, Ltd.) was established.

October

IY Card Service Co., Ltd. (later Seven Card Service Co., Ltd.) was established.

June

Millennium Retail Group, consisting of Sogo Co., Ltd. and The Seibu Department Stores, was launched.

August

Seven-Eleven Japan exceeded 10,000 stores.

January

SEVEN-ELEVEN (BEIJING) CO., LTD. was established.

March

Mall & SC Development Inc. (later Seven & i Create Link Co., Ltd.) was established.

September

Seven & i Holdings Co., Ltd. was established.

November

7-Eleven, Inc. was made a wholly owned subsidiary of Seven-Eleven Japan Co., Ltd.

June

Millennium Retailing, Inc., which operates SOGO and SEIBU Department Stores, was made a wholly owned subsidiary.

September

York-Benimaru Co., Ltd. was made a wholly owned subsidiary.

January

Seven & i Food Systems Co., Ltd. was established.

March

The Loft CO., LTD. was made a wholly owned subsidiary of Millennium Retailing, Inc.

April

Proprietary electronic money service "nanaco" was introduced.

May

Seven Premium, a private brand across the Group, was launched.

July

Akachan Honpo Co., Ltd. was made a subsidiary of Ito-Yokado Co., Ltd.

January

Seven & i Financial Group (later Seven Financial Services Co., Ltd.) was established.

April

SEVEN-ELEVEN (CHINA) INVESTMENT CO., LTD. was established.

July

Seven & i Net Media Co., Ltd. was established.

August

Agricultural corporation, Seven Farm Tomisato Co., Ltd. was established.

January

Seven Culture Network Co., Ltd. was established.

August

Millennium Retailing, Sogo, and The Seibu Department Stores were merged to establish Sogo & Seibu Co., Ltd.

December

• Seven Net Shopping, a general online shopping site for the Group, was launched.
• Business and capital alliance made with PIA Corporation.

March

Capital alliance with Tower Records Japan Inc.

July

Agricultural production corporation, Seven Farm Co., Ltd. was established.

December

SEVEN-ELEVEN (CHENGDU) CO., LTD. was established.

July

Seven-Eleven Japan launched "Seven Easy Delivery" (Rakuraku Otodokebin) service using electric mini vehicles.

July

Business and capital alliance with DAIICHI CO., LTD. a Hokkaido-based supermarket.

December

• Business and capital alliance with Nissen Holdings Co., Ltd.
• Ito-Yokado Co., Ltd. entered into a capital alliance with Tenmaya Store Co., Ltd., and Seven & i Holdings Co., Ltd. entered into a business alliance with Tenmaya Store Co., Ltd. and Tenmaya Co., Ltd.
• Business and capital alliance with BALS CORPORATION (later Francfranc Corporation).

February

Barneys Japan Co., Ltd. was made a wholly owned subsidiary.

March

Business alliance with Kansai-based food supermarket MANDAI CO., LTD.

November

Grand opening of Omni7, the Group's comprehensive e-commerce channel.

November

Nissen Holdings Co., Ltd. was made a wholly owned subsidiary.

October

SEVEN-ELEVEN OKINAWA CO., LTD. was established.

January

• Seven Payment Service, Ltd. was established.
• Seven-Eleven Japan exceeded 20,000 stores..

  

April

Business alliance with Izumi Co., Ltd.

July

• Business alliance with Odakyu Electric Railway Co., Ltd. and with Odakyu Shoji Co., Ltd.
• Business alliance with Zoshinkai Holdings Inc.

May

Environmental initiative "GREEN CHALLENGE 2050" was formed.

July

First Seven-Eleven store was opened in Okinawa, giving the Seven-Eleven chain a presence in every prefecture in Japan.

December

Number of 7-Eleven stores worldwide exceeded 70,000.

100th anniversary of Ito-Yokado Co., Ltd.

March

SEVEN-ELEVEN JAPAN CO., LTD. established General Incorporated Association, Seven Global Linkage.

May

The Seven Premium Connect Declaration was announced.

June

York Co., Ltd. was established.

May

7-Eleven, Inc. acquired Marathon Petroleum Corporation’s U.S. convenience store and fuel retail businesses operating mainly under the Speedway brand.

June

SEVEN-ELEVEN JAPAN CO., LTD. and 7-Eleven, Inc. undertook a joint venture to establish 7-Eleven International LLC.

March

Revised the material issues of the Seven & i Group.

April

• The company and Seven Bank moved to the Prime Market following the reorganization of Tokyo Stock Exchange markets.
• Number of 7-Eleven stores worldwide exceeded 80,000.