The richest people in Indonesia in October 2026 are led by the Hartono family of the Djarum Group, whose Bank Central Asia stake is worth about $18.5 billion. Indonesia is better known for Bali than for billionaires, but its tycoons built fortunes in banking, petrochemicals, coal and food. We rebuilt this list from ownership percentages multiplied by market values on October 26, 2026, and the numbers are lower than in the past because Indonesian stocks have fallen hard in 2026. Each figure is our estimate and a floor.
| Rank | Name | Main holding | Our estimate |
|---|---|---|---|
| 1 | Hartono family (Robert Budi Hartono) | Bank Central Asia, Djarum | $18.5 billion+ |
| 2 | Prajogo Pangestu | Barito Pacific, Barito Renewables, Petrindo Jaya Kreasi | $12.1 billion+ |
| 3 | Low Tuck Kwong | Bayan Resources | $9.6 billion+ |
1. Hartono family (Robert Budi Hartono): At least $18.5 billion
The Hartono brothers own Djarum, the world’s third-largest maker of clove cigarettes, which grew into Indonesia’s most valuable private group. In 2002 a Djarum-led consortium bought control of Bank Central Asia (BCA), now the country’s largest private bank by market value. BCA’s controlling shareholder is the Djarum family holding company PT Dwimuria Investama Andalan, and Robert Budi Hartono is named as its controlling owner.
How we valued it: BCA’s shareholder table shows the Hartono holding company at 54.94%. BCA’s market value that day was about 609 trillion rupiah, so the stake is about 335 trillion rupiah, or $18.5 billion at 18,115 rupiah per dollar. Robert Budi Hartono reportedly holds 51% of the holding company, which is about $9.4 billion for him personally. Djarum and other assets are not included.
2. Prajogo Pangestu: At least $12.1 billion
Prajogo Pangestu founded the Barito Pacific Group, which spans forestry, plantations, oil and gas, coal, gold and geothermal power. In March 2022 a company he controls bought 33.33% of the geothermal operator Star Energy for $440 million, giving him full control of it. His group also owns Indonesia’s largest petrochemical producer, Chandra Asri.
How we valued it: Reported stakes times market value that day: 71.36% of Barito Pacific (market value 134 trillion rupiah) is $5.3 billion; about 22% of Barito Renewables (313 trillion rupiah) held through his children’s company is $3.8 billion; about 84% of Petrindo Jaya Kreasi (56.8 trillion rupiah) is $2.6 billion; and about 5% of Chandra Asri held directly is $0.4 billion. Total about $12.1 billion. We did not count Amman Mineral because we could not confirm his stake.
3. Low Tuck Kwong: At least $9.6 billion
Low Tuck Kwong moved from Singapore to Indonesia in 1972, bought his first coal concession in Kalimantan in the 1990s and built Bayan Resources into a major producer. In 2024 Bayan reported output of 56.9 million tons of coal, nearly 7% of Indonesia’s total. In August 2024 he transferred a stake in Bayan, worth $6.6 billion at the time, to his daughter Elaine.
How we valued it: Our labelled estimate: he controls Bayan, whose market value that day was about 347 trillion rupiah ($19.1 billion). We could not open a current ownership table, so we count half of the company, $9.6 billion, as a floor.
Other Indonesian fortunes we did not recompute
Anthoni Salim runs the Salim Group, whose assets include Indofood, the world’s largest instant noodle producer, and the convenience chain Indomaret. The latest dated figure we could open for him is about $8.5 billion in December 2021, so we keep it with its year rather than adjust it. Chairul Tanjung built CT Corp, whose businesses include Trans TV, Bank Mega and the Transmart retail chain, and Japan’s Mitsui invested nearly $1 billion in the group in 2021. Dato’ Sri Tahir founded Mayapada Group, Mochtar Riady founded Lippo Group, and Boenjamin Setiawan co-founded Kalbe Farma. Their holdings are too private or too thinly disclosed for us to value, so none are ranked.
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Who is the richest person in Indonesia?
By our holdings math, the Hartono family, whose controlling stake in Bank Central Asia was worth about $18.5 billion at October 26, 2026 prices. Robert Budi Hartono personally holds the largest share of that vehicle.
Why are these numbers lower than a few years ago?
Indonesian share prices fell sharply in 2026, so stakes in listed companies are worth far less in dollars than at their peaks. We value them at current prices.
How are Indonesian fortunes valued here?
We multiply each person’s reported ownership percentage by the company’s market value that day and convert rupiah at 18,115 per US dollar.
Who is the richest person in Indonesia from coal?
Low Tuck Kwong, the founder of Bayan Resources. Our floor is $9.6 billion, half of Bayan’s market value, because he controls the company.
What happened to the 2015 version of this list?
It ranked the top 10 using year-end 2015 figures. We replaced it with a holdings-based ranking, and keep older dated figures only where we could not recompute.
Do these figures include private companies?
Mostly not. Djarum, Sinar Mas, CT Corp and other private groups are not valued here, so many totals are minimums.
How we estimate net worth
Our estimates are based on public reporting, company valuations, and deal and earnings figures all compiled in an internal valuation model. They are approximate, and figures change over time as new information emerges.
For this list we used ownership percentages from company shareholder tables and reported filings, market values that day, and a rate of 18,115 rupiah per dollar. Private groups are not valued, so every figure is a minimum.
Last updated: October 2026.
