BillionaireNet
Mori
Yoshiko Mori
Rank #1381
JAPANreal-estateReal estate

Yoshiko Mori

Net Worth
$2.907B
0% (24h)
Yoshiko Mori, born in 1941, is a prominent Japanese businesswoman, currently 85 years old. She is the widow of Minoru Mori, the real estate tycoon who passed away in 2012. Her primary source of wealth is real estate, stemming from her inheritance of a share in Mori Building, a leading Japanese property management firm known for its high-profile developments such as Roppongi Hills in Tokyo. Mori is ranked among the world's wealthiest individuals, and as of December 16, 2025, her estimated net worth is $2.9 billion. She is also actively involved in the Mori Art Museum and is a former president of the American Association of Teachers of Japanese.

The Full Dossier

Early Life

Yoshiko Mori was born in 1941 in Tokyo, Japan. Her last name, Mori, translates to "forest" in Japanese. She is the widow of Minoru Mori, a prominent real estate tycoon. She has two children.

Rise to Success

Yoshiko Mori's path to wealth began with her inheritance of a share in Mori Building after her husband's death in 2012. Mori Building, founded in 1959 by Taikichiro Mori, is renowned for its large-scale urban redevelopment projects and its iconic "Hills" branded projects, particularly in Tokyo. Key projects include Roppongi Hills and Azabudai Hills. Under her leadership, and with the increased revenue from the full-year operation of projects like Azabudai Hills, her net worth has seen significant growth.

Key Business Strategies

Mori Building focuses on integrated urban developments, incorporating office, residential, retail, cultural, and recreational spaces. Their strategy emphasizes high-quality, innovative design, and a focus on creating vibrant, human-centered cities. Recent financial reports show record highs in operating revenue and income, indicating the success of these strategies. The company also has a global presence with projects in China and Southeast Asia.

Philanthropy

Yoshiko Mori chairs the Mori Art Museum. She has also been recognized for her contributions to the advancement of Japanese language education.

Career Timeline

2025

Foreign Minister's Commendation

Received the Foreign Minister's Commendation from the Ministry of Foreign Affairs of Japan for contributions to Japanese language education.

2024

President of AATJ

Appointed as the President of the American Association of Teachers of Japanese (AATJ).

2018

Forbes Ranking

Listed on the Forbes list for Japan's 50 Richest.

2012

Inherited Mori Building shares

Following the death of her husband, Minoru Mori, she inherited a share of the family's real estate firm, Mori Building.

Philanthropic Impact

ArtsUndisclosed

Mori Art Museum

Chairs the Mori Art Museum.

Wealth Trajectory