Indonesia has emerged as one of Southeast Asia’s most important economic powers, driven by its huge population, natural resources, expanding financial sector, digital economy and growing industrial base. Behind much of this economic activity are some of the region’s wealthiest business families and entrepreneurs.
The country’s billionaire class spans banking, tobacco, energy, mining, petrochemicals, technology, infrastructure, manufacturing and consumer businesses. According to Forbes’ 2025 Indonesia’s 50 Richest list, the combined wealth of the country’s 50 richest people reached a record $306 billion, up from $263 billion a year earlier.
The ranking also highlights an important transformation. Traditional fortunes built in banking, tobacco and commodities remain powerful, but technology, data centers, renewable energy and digital infrastructure are creating new billionaires.
1. R. Budi Hartono & Michael Hartono — $43.8 Billion
For more than a decade, the Hartono family has occupied the top position among Indonesia’s richest.
The brothers R. Budi Hartono and Michael Hartono built their family fortune from Djarum, one of Indonesia’s major clove-cigarette businesses, before expanding into financial services and other industries.
Their biggest modern asset is their stake in Bank Central Asia (BCA), one of Indonesia’s largest banks. The brothers acquired their BCA stake following the Asian financial crisis of 1997–98.
Their family interests also include electronics company Polytron, real estate and digital businesses. Their investment in Global Digital Niaga, the parent of e-commerce company Blibli, demonstrated the family’s move into Indonesia’s rapidly growing digital economy.
Michael Hartono died in March 2026 at age 86. Forbes' 2026 global list nevertheless recorded his wealth separately at $18.9 billion in its March 10 snapshot, while R. Budi Hartono was listed at $19.6 billion.
The Hartono story illustrates how a traditional family business can evolve into a diversified empire spanning banking, consumer products, technology and real estate.
2. Prajogo Pangestu — $39.8 Billion
Prajogo Pangestu has become one of Indonesia’s most prominent self-made billionaires.
His business journey began in the timber industry in the late 1970s. He later transformed his holdings into a diversified group with major interests in petrochemicals, energy, mining and renewable energy.
His company Barito Pacific expanded into petrochemicals through its acquisition of a major stake in Chandra Asri. Chandra Asri subsequently became one of Indonesia’s largest integrated petrochemical producers.
Pangestu also expanded into coal mining through Petrindo Jaya Kreasi and renewable energy through Barito Renewables Energy.
Forbes ranked him Indonesia’s richest individual in its 2026 annual global snapshot, with $28.6 billion as of March 10, 2026, placing him 84th in the world.
His fortune demonstrates the enormous wealth-creation potential of Indonesia’s energy and industrial sectors.
3. Widjaja Family — $28.3 Billion
The Widjaja family is associated with the vast Sinar Mas business empire.
Their interests cover sectors including infrastructure, energy, property, financial services, telecommunications and technology.
One of the most important developments in recent years has been the family’s expansion into renewable energy and data infrastructure.
Forbes reported that the family’s wealth increased by $9.4 billion in 2025, reaching $28.3 billion, making it the biggest dollar gain among people and families on Indonesia’s 50 Richest list.
Their energy and infrastructure flagship, Dian Swastatika Sentosa, expanded its renewable-energy operations and opened Indonesia’s largest solar-panel factory in 2025, with annual capacity of up to one gigawatt.
The family's growth highlights Indonesia’s increasing demand for power, digital infrastructure and renewable energy.
4. Low Tuck Kwong — $24.9 Billion
Low Tuck Kwong is widely known as Indonesia’s coal king.
Singapore-born, he built his fortune through Bayan Resources, a major Indonesian coal producer. Coal remains an important part of Indonesia’s export economy and energy system.
Forbes valued his fortune at $24.9 billion on its 2025 Indonesia Richest list, placing him fourth nationally.
His wealth also demonstrates the volatility associated with commodity businesses. Coal prices, production costs, government policies and global energy demand can dramatically affect the value of mining companies.
On Forbes’ 2026 World’s Billionaires list, Low Tuck Kwong was valued at approximately $20.2 billion, ranking 131st globally.
5. Anthoni Salim & Family — $13.6 Billion
Anthoni Salim is one of Indonesia’s best-known diversified business leaders.
He is associated with Salim Group, whose interests span food, consumer products, telecommunications, retail, banking and other businesses.
The Salim family's ability to operate across multiple industries has helped it remain one of Indonesia's most influential business groups.
Forbes placed Anthoni Salim and his family fifth on the 2025 Indonesia Richest list with $13.6 billion.
The group's diversified approach provides an important lesson in Indonesia's corporate landscape: businesses often expand across multiple sectors to capture opportunities created by the country's large domestic market.
6. Otto Toto Sugiri — $11.3 Billion
A major new theme in Indonesia's billionaire landscape is data centers.
Otto Toto Sugiri became one of the biggest beneficiaries of this trend through his role in DCI Indonesia, a data-center company.
Forbes reported that rising demand for data centers caused DCI Indonesia's shares to surge, pushing Sugiri into the country's top 10 richest people for the first time. His wealth reached $11.3 billion on the 2025 list.
His rise is particularly significant because it represents a different type of Indonesian wealth creation.
Instead of relying primarily on commodities or traditional consumer businesses, Sugiri's fortune is connected to the infrastructure required by the digital economy.
As cloud computing, artificial intelligence, streaming, e-commerce and digital financial services expand, demand for data centers could continue to grow.
7. Tahir & Family — $9.8 Billion
Tahir and his family built a diversified business empire spanning healthcare, finance, property and other industries.
Tahir is also known for his philanthropic activities.
His business career illustrates another recurring pattern among Indonesia's wealthiest families: building businesses in sectors that benefit from the country's expanding middle class.
Healthcare, financial services and consumer industries are particularly important as Indonesia's population becomes increasingly urbanized and digitally connected.
Forbes valued the Tahir family's fortune at $9.8 billion in its 2025 ranking.
8. Marina Budiman — $8.2 Billion
Marina Budiman represents the rise of technology-related wealth in Indonesia.
She is a cofounder of DCI Indonesia, alongside Otto Toto Sugiri and other business partners.
Her wealth reached $8.2 billion on Forbes' 2025 list, making her one of the country's richest technology entrepreneurs.
Her rise is a sign that Indonesia's billionaire economy is gradually moving beyond traditional industries.
Data centers, cloud infrastructure and artificial intelligence require enormous amounts of computing capacity, creating opportunities for infrastructure companies that support the digital economy.
9. Wijono & Hermanto Tanoko & Family — $8.1 Billion
The Tanoko family built its fortune through diversified manufacturing and consumer businesses.
Forbes ranked Wijono and Hermanto Tanoko and their family ninth in 2025, with approximately $8.1 billion.
Manufacturing remains an important pillar of Indonesia's economy, particularly as the country seeks to move further up global supply chains.
Industrial production, consumer demand and Indonesia's strategic location in Southeast Asia provide significant opportunities for businesses operating in this space.
10. Sri Prakash Lohia — $8 Billion
Sri Prakash Lohia rounds out Indonesia's 2025 top 10.
His fortune comes primarily from manufacturing, making him another example of Indonesia's long-standing industrial wealth.
Lohia's position demonstrates the importance of manufacturing to Indonesia's billionaire economy alongside newer sectors such as technology and data infrastructure.
Forbes valued his fortune at approximately $8 billion in the 2025 Indonesia Richest ranking.
From Tobacco and Coal to Data Centers and Renewable Energy
One of the most interesting aspects of Indonesia's billionaire economy is the changing mix of industries.
For decades, fortunes were heavily connected to:
Tobacco
Banking
Coal
Timber
Manufacturing
Commodities
Today, newer opportunities are emerging in:
Data centers
Artificial intelligence infrastructure
Renewable energy
Digital services
E-commerce
Technology
Healthcare
Telecommunications
The rise of Otto Toto Sugiri and Marina Budiman is particularly important because it shows how technology infrastructure can generate enormous wealth in a relatively short period.
Meanwhile, the expansion of the Widjaja and Pangestu business empires into renewable energy shows how established fortunes are adapting to changing global energy markets.
Indonesia’s Billionaire Economy
Indonesia is particularly attractive to large businesses because of its enormous domestic market and abundant natural resources.
The country has more than 270 million people, making it one of the world's largest consumer markets.
It is also strategically positioned between the Indian and Pacific Oceans, making it an important center for trade and investment in Southeast Asia.
Indonesia's natural-resource base includes coal, nickel, palm oil, natural gas and other commodities. At the same time, the country is attempting to develop more sophisticated manufacturing and technology industries.
This combination creates opportunities across both traditional and emerging sectors.
The Rise of Digital Infrastructure
Technology is becoming increasingly important to Indonesia's wealth creation.
The country's growing internet population, e-commerce sector, digital banking ecosystem and demand for cloud computing require massive investment in infrastructure.
Data centers are particularly important.
Artificial intelligence applications, cloud platforms, online entertainment, financial technology and enterprise software all require large amounts of computing power and storage.
This explains why technology entrepreneurs have begun appearing among Indonesia's richest people.
The emergence of data-center billionaires could be one of the most important changes in Indonesia's wealth rankings over the next decade.
Renewable Energy and the Next Generation of Wealth
Indonesia's energy industry is also changing.
Traditional businesses built around coal, oil and gas remain enormously valuable. However, renewable energy is becoming a larger part of the country's investment landscape.
Prajogo Pangestu has expanded into geothermal and other renewable-energy businesses, while the Widjaja family's companies have increased their focus on solar and other energy infrastructure.
This transition could create a new generation of billionaires whose fortunes are connected to clean energy, electricity infrastructure, batteries and industrial technology.
Why Billionaire Fortunes Change So Quickly
It is important to remember that billionaire wealth is not the same as cash in a bank account.
Most billionaire wealth consists of ownership stakes in publicly traded or private companies.
When a company's stock price changes, the billionaire's estimated wealth can change by billions of dollars without the person buying or selling anything.
For example, Forbes' March 2026 global ranking valued Prajogo Pangestu at $28.6 billion, while his Forbes profile's real-time figure later in September 2026 was substantially different.
This is why annual billionaire rankings should always be read with their valuation date in mind.
What Indonesia’s Richest Billionaires Teach Us
The stories of Indonesia's wealthiest businesspeople reveal several common themes.
1. Diversification matters
The largest fortunes often span several industries rather than relying on one business.
2. Infrastructure creates enormous opportunities
Banking, electricity, telecommunications, transportation and data centers can become the foundations of massive business empires.
3. Natural resources remain important
Coal, energy and petrochemicals continue to produce enormous wealth.
4. Technology is changing the rankings
Data centers and digital infrastructure are creating new billionaires.
5. Long-term businesses can survive economic cycles
The Hartono family's evolution from tobacco into banking, technology and other assets demonstrates how established fortunes can adapt over generations.
Frequently Asked Questions
Who is the richest person in Indonesia?
Forbes' 2026 global billionaire snapshot identified Prajogo Pangestu as Indonesia's richest individual, with $28.6 billion as of March 10, 2026.
Who were Indonesia's richest people in the latest Forbes country ranking?
Forbes' 2025 Indonesia's 50 Richest list ranked R. Budi & Michael Hartono first, Prajogo Pangestu second, the Widjaja family third and Low Tuck Kwong fourth.
How did Prajogo Pangestu make his fortune?
Prajogo Pangestu began in timber and later expanded into petrochemicals, mining and energy, including renewable energy.
Who are the Hartono brothers?
R. Budi and Michael Hartono were Indonesian business magnates whose family wealth originated in tobacco and later expanded heavily into banking through Bank Central Asia. Michael Hartono died in March 2026.
What company made the Hartono family wealthy?
The family's fortune originated partly from Djarum, a major Indonesian clove-cigarette company, and later grew substantially through their stake in Bank Central Asia.
Who is Indonesia's richest technology billionaire?
Otto Toto Sugiri became one of Indonesia's richest technology entrepreneurs through DCI Indonesia, while Marina Budiman also entered the country's top 10 through the company's growth.
Why are data centers important to Indonesia?
Data centers provide the infrastructure needed for cloud computing, e-commerce, artificial intelligence, digital banking and other online services.
Is coal still important to Indonesia's billionaires?
Yes. Low Tuck Kwong's Bayan Resources remains one of the country's major coal businesses, and coal continues to play an important role in Indonesia's energy and export economy.
Are Indonesian billionaires investing in renewable energy?
Yes. Major Indonesian business groups are increasingly investing in renewable energy, including solar and geothermal projects.
Can Indonesia produce more billionaires in the future?
Potentially. Continued growth in technology, artificial intelligence infrastructure, renewable energy, healthcare, manufacturing, financial services and consumer markets could create new opportunities for large-scale wealth creation.
Conclusion
Indonesia's richest billionaires represent far more than personal wealth. Their companies are deeply connected to the country's economic development, from banking and manufacturing to energy, mining, technology and infrastructure.
The biggest fortunes remain rooted in traditional industries, but the rise of data-center entrepreneurs and renewable-energy investments signals a changing landscape.
Indonesia's next generation of billionaires may come not only from coal mines, tobacco factories and banks, but also from AI infrastructure, clean energy, digital finance, advanced manufacturing and the technology systems powering Southeast Asia's digital future.
Data note: Forbes' Indonesia country ranking is an annual snapshot, while individual Forbes profiles can show real-time wealth. Net worth figures in this article therefore should be read with their stated valuation dates rather than treated as fixed amounts.
