Conglomerate in Japan

Sumitomo Group

The Sumitomo Group (Japanese: 住友グループ, Hepburn: Sumitomo Gurūpu) is one of the largest Japanese keiretsu, or business groups, founded by Masatomo Sumitomo around 1615.

Mitsui

Mitsui Group (三井グループ, Mitsui Gurūpu) is one of the largest keiretsu in Japan and one of the largest corporate groups in the world.

The major companies of the group include Mitsui & Co. (general trading company), Sumitomo Mitsui Banking Corporation, Sapporo Breweries, Toray Industries, Mitsui Chemicals, Isetan Mitsukoshi Holdings, Sumitomo Mitsui Trust Holdings, Mitsui Engineering & Shipbuilding, Mitsui O.S.K. Lines and Mitsui Fudosan.

Mitsubishi

The Mitsubishi Group (三菱グループ, Mitsubishi Gurūpu, informally known as the Mitsubishi Keiretsu) is a group of autonomous Japanese multinational companies in a variety of industries.

Founded by Iwasaki Yatarō in 1870, the Mitsubishi Group historically descended from the Mitsubishi zaibatsu, a unified company which existed from 1870 to 1946. The company was disbanded during the occupation of Japan following World War II. The former constituents of the company continue to share the Mitsubishi brand and trademark. Although the group companies participate in limited business cooperation, most famously through monthly "Friday Conference" executive meetings, they are formally independent and are not under common control. The four main companies in the group are MUFG Bank (the largest bank in Japan), Mitsubishi Corporation (a general trading company), Mitsubishi Electric and Mitsubishi Heavy Industries (both diversified manufacturing companies).

Mizuho Financial Group

Mizuho Financial Group, Inc. (株式会社みずほフィナンシャルグループ, Kabushiki-gaisha Mizuho Finansharu Gurūpu), abbreviated as MHFG, or simply called Mizuho, is a banking holding company headquartered in the Ōtemachi district of Chiyoda, Tokyo, Japan. The name "mizuho (瑞穂)" literally means "abundant rice" in Japanese and "harvest" in the figurative sense. Upon its founding, it was the largest bank in the world by assets. It is considered a systemically important bank by the Financial Stability Board.

It holds assets in excess of $1.8 trillion US dollars through its control of Mizuho Bank and other operating subsidiaries. The company's combined holdings form the third largest financial services group in Japan. Its banking businesses rank third in Japan after Mitsubishi UFJ Financial Group and SMBC Group. It is the 15th largest banking institution in the world by total assets as of December 2018. It is the 90th largest company in the world according to Forbes rankings as of May 2017. It is listed on the Tokyo Stock Exchange—where it is a constituent of the Nikkei 225 and TOPIX Core30 indices—and in the New York Stock Exchange in the form of American depositary receipts.

Mizuho offers a range of financial services, including banking, securities, trust and asset management services, employing more than 59,132 people throughout 880 offices.

Furukawa Group

Furukawa Group (古河グループ, Furukawa Gurūpu) formerly Furukawa zaibatsu (古河財閥) is one of Japan's 15 largest industrial groups. Its origins date back to 1875, founder Furukawa Ichibei. This group specialized in mining, electronics, and chemicals industry before World War II.

Now, the predominant companies are Fuji Electric and Furukawa Electric as well as Fujitsu, FANUC, and Advantest. Other well-known companies include Yokohama Rubber.

Nissan Group

Nissan Group (日産コンツェルン, Nissan Kontserun, "Nissan Concern"), or formerly Nissan zaibatsu, was one of Japan's most powerful business groupings. Founded in 1928 by Yoshisuke Aikawa, the group was originally a holding company created as an offshoot of Kuhara Mining Co.(became Nippon Mining & Metals Company; currently part of JXTG Holdings), which Aikawa had taken over as president of from his brother-in-law, Fusanosuke Kuhara. After the bankruptcy of the Kuhara zaibatsu following World War I, Aikawa reorganized its assets into Japan Industries or Nihon Sangyo Corporation (日本産業株式会社, Nihon Sangyō kabushiki gaisha), Nissan for short.

The group's core business was real estate and insurance with hundreds of member companies, including fisheries, mining companies, and is affiliated with Hitachi Group companies, as well as what Nissan is now known for—its automobile industry. After World War II, the zaibatsu was disbanded, and reformed into Nichiyo-kai, otherwise known as Nissan Group.

Although the Nissan name was primarily known for its car manufacturing outside Japan, Nissan Motors was a comparatively small side business compared to its core real estate business until the real estate crash of the early 1990s (see Japanese asset price bubble). Like the similar subprime crisis, the crash dealt a devastating blow to the Nissan Group by leaving it with several hundred billions of dollars of debt.

The Nissan Group has long since shed the majority of its real estate assets (which were sold to Mitsui & Co. and still operates as the Bussan Real Estate Company), and has focused on manufacturing and insurance. Nissan Motors was given more independence as French automotive manufacturer Renault bought a 38.8% stake in the company for $5.4 billion in 1999 and appointed Carlos Ghosn as CEO of the new Renault–Nissan Alliance. Nissan Motors' successful turnaround was attributed to CEO Ghosn's ability to detach it from its keiretsu connections and eliminate 23,000 jobs from the Japanese workforce.

Nomura Holdings

Nomura Holdings, Inc. (野村ホールディングス株式会社, Nomura hōrudingusu kabushiki gaisha) is a Japanese financial holding company and a principal member of the Nomura Group. It, along with its broker-dealer, banking and other financial services subsidiaries, provides investment, financing and related services to individual, institutional, and government customers on a global basis with an emphasis on securities businesses.

Toyota Group

The Toyota Group (トヨタグループ, Toyota Gurūpu) is a group of companies that have supplier, vendor and investment relationships with Toyota Industries and Toyota Motor vehicle manufacturing facilities. It is similar to a keiretsu in that no particular entity has outright control over the entire group, although unlike most keiretsu it does not contain a major bank.