Billionaire Profile
Michael Hartono
Global Rank
#149

Image: FBI | Public domain | via Wikimedia Commons

Michael Hartono

CEO, Djarum
ID
Real-Time Net Worth
$18.5B
Estimated based on Djarum stock value as of April 20, 2026
Age
86
Source
Banking, tobacco
Industry
manufacturing
Citizenship
ID

Biography

Michael Hartono (1939 – 2026) was an Indonesian billionaire and businessman. His net worth was $25.1 billion in December 2024, ranking him among the wealthiest individuals in the world. The source of Hartono's wealth is primarily from banking and tobacco. He co-owned the kretek (clove cigarette) manufacturer Djarum, which he inherited with his brother Robert Budi Hartono. Hartono's career included expanding Djarum into a large conglomerate that included Bank Central Asia, electronics, plantations, and various properties. He attended Diponegoro University. Beyond business, Hartono was a bridge player, winning a bronze medal at the 2018 Asian Games.

Fact Checked
Verified by Editorial Team
Live Data
Updated 4/20/2026

Wealth Over Time

In-Depth Profile

Early Life

Michael Bambang Hartono, also known as Oei Hwie Siang, was born on October 2, 1939, in Kudus, Central Java, Indonesia. His father, Oei Wie Gwan, purchased a small kretek cigarette factory called Djarum Gramophon in 1951 and renamed it Djarum. Hartono completed high school in Kudus and studied at Diponegoro University in the faculty of economics and business but returned to Kudus upon his father's death in 1963.

Rise to Success

In 1963, after the Djarum factory burned down and his father passed away, Michael and his brother Robert Budi Hartono inherited the factory. The brothers rebuilt and modernized the company, growing it into one of Indonesia's largest cigarette manufacturers. Under their leadership, Djarum expanded into various sectors, including banking, electronics, and real estate. In 1972, they made their first export, and by 2012, their cigarette brand had captured a 19% market share in Indonesia. In 1975, they founded the electronics brand Polytron. In 2002, through the FarIndo Investments consortium, they acquired a 51.15% stake in Bank Central Asia (BCA).

Key Business Strategies

Hartono and his brother focused on strategic diversification, moving beyond the tobacco industry into banking and electronics. Their acquisition of a controlling stake in Bank Central Asia (BCA) after the 1997-1998 Asian financial crisis was a pivotal move, as BCA became a cornerstone of their wealth. They also invested in Polytron, an Indonesian electronics brand, and palm oil plantations. The brothers listed Global Digital Niaga, the parent of e-commerce giant Blibli, raising $510 million in what was Indonesia's second-largest IPO of 2022.

Philanthropy

Michael Hartono, through the Djarum Foundation, supported initiatives in education, sports, and environmental conservation. The foundation donated to the Diponegoro University's School of Economics and a Catholic orphanage. Hartono's philanthropic efforts extended to community development projects, supporting local organizations.

Career Milestones

1963

Inherited Djarum

Took over the Djarum cigarette company with his brother Robert Budi Hartono after their father's death.

1972

First Export

Djarum made its first export, marking an expansion into international markets.

1975

Founded Polytron

Established the electronics brand Polytron.

2002

Acquired BCA Stake

Acquired a controlling stake in Bank Central Asia through FarIndo Investments.

2018

Bronze Medal in Bridge

Won a bronze medal representing Indonesia in the bridge event at the Asian Games.

Philanthropy & Social Impact

Education, Sports, Social Development

Djarum Foundation

Undisclosed

Supports education, arts, culture, sports, and social development across Indonesia.

Education

Support for Diponegoro University

$1.5M

Donated to the School of Economics for infrastructural upgrades.

Social Development

Support for Orphanage

Undisclosed

Supported a Catholic-run orphanage in Lasem, Central Java.