Mississippi Brothers Appeared on Forbes Billionaire List
James and Thomas Duff are the only residents of Mississippi to rank among the wealthiest individuals in the world.
Updated on Oct. 1, 2026 in Public Companies

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James and Thomas Duff each recorded a net worth of $4.5 billion to earn spots on the latest Forbes list of world billionaires. The pair are the only Mississippians to achieve this ranking.
Why it matters
The list provides a benchmark of capital concentration and wealth distribution across the U.S. economy, highlighting Mississippi's distinct position relative to national trends.
James Duff holds the 978th global ranking and Thomas Duff the 982nd, placing both at 380th among the 989 U.S. billionaires. Rankings were calculated using market data from March 1, 2026.
The players
James Duff
A Mississippi-based entrepreneur who holds the 978th rank on the global billionaire list.
Thomas Duff
A Mississippi-based entrepreneur and potential 2027 gubernatorial candidate with a global ranking of 982.
Forbes
A global media and publishing company that tracks wealth metrics and publishes annual rankings of high-net-worth individuals.
The details
Forbes calculated the rankings by analyzing stock prices and exchange rates as of March 1, 2026. The Duff brothers reside in the Pine Belt and represent the sole entries from Mississippi on the national list, which includes 989 billionaires across the United States. While the financial data is current for the 2026 reporting cycle, Thomas Duff is now considering a potential gubernatorial run for 2027.
Timeline
March 1, 2026, marked the cutoff for data used in the ranking calculations.
September 30, 2026, was the date Forbes released the updated global billionaire rankings.
2027 is the year Thomas Duff is considering a gubernatorial run.
Market Landscape
The Forbes list serves as the industry standard for tracking the concentration of private capital across the U.S. economy. The Duff brothers' entry marks their continued standing within this global registry of wealth.
Operators should monitor Thomas Duff's potential 2027 gubernatorial run, as a transition into state politics could shift regional economic priorities. Businesses in the Pine Belt and across Mississippi should watch for any changes in the brothers' public-facing business strategy.
The takeaway
The ranking confirms the presence of concentrated private capital within Mississippi's local economy. Operators should track the 2027 gubernatorial cycle for potential changes in the regulatory and business environment that could influence state-level economic policy.
What happens next
Thomas Duff is weighing a candidacy for the Mississippi gubernatorial election occurring in 2027.
Further reading
For broader trends regarding wealth and corporate leadership, read more at Public Companies.
Source note: This article includes information reported by The Grenada Star.
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