Michael Dorrell Net Worth

Michael Dorrell has an estimated net worth of $11.7 billion, according to Forbes Real-Time Billionaires, Michael Dorrell profile (figures as of October 20, 2026). That is up from $8.5 billion in 2025.

Michael Dorrell is an investor and business executive best known as the cofounder and CEO of Stonepeak. He moved from Australia to the United States in 2001 while working at Macquarie Group, where he helped build the firm's U.S. infrastructure business. After about a decade there and a short period at Blackstone during the Great Recession, he launched Stonepeak in 2011 with Trent Vichie and built it into a major infrastructure investment firm.

His wealth comes from Stonepeak, which manages $93 billion and backs infrastructure businesses across logistics, energy and digital networks. Its investments range from water desalination plants and gas pipelines to data center companies. In 2023, Blue Owl Capital bought a minority stake for $2 billion, valuing Stonepeak at around $15 billion. Forbes put Dorrell at $11.7 billion on its real-time billionaires tracker on October 20, 2026.

How Michael Dorrell built his fortune

Dorrell made his name in infrastructure investing. He started at Macquarie Group and moved to the United States in 2001 at age 25 to work on that market. That experience helped him learn how large infrastructure deals are sourced, financed and managed. After roughly a decade at Macquarie and a brief stop at Blackstone during the Great Recession, he co-founded Stonepeak in 2011 and took on the CEO role.

Stonepeak is the center of his fortune. The firm has $93 billion in assets under management and focuses on infrastructure businesses in logistics, energy and digital infrastructure. Its portfolio areas include water desalination plants, gas pipelines and data center firms. A major outside investment also highlighted Stonepeak's value. In 2023, Blue Owl Capital paid $2 billion for a minority stake, putting the firm's valuation at around $15 billion.

Forbes valuation and money milestones

Forbes estimated Dorrell's fortune at $8.5 billion on the World's Billionaires List in 2025, and that same figure appeared again on the 2026 list. Those estimates came as Stonepeak had already grown into a large infrastructure investor with a broad reach across several essential sectors. The firm's scale, plus the 2023 minority investment by Blue Owl Capital, offered a public marker for how valuable Stonepeak had become.

By October 2026, Forbes' real-time billionaires tracker placed him at $11.7 billion. That higher figure came after years of building Stonepeak into a firm with $93 billion under management. The business stands out because it invests in assets tied to daily economic activity, including transport links, energy systems and digital facilities. Dorrell's wealth is closely tied to the value and growth of the firm he helped start in 2011.