Austin billionaire Michael Dell keeps ascending the hierarchy of the world’s richest people. New data from Forbes magazine pegs the founder, chairman, and CEO of the Round Rock tech company bearing his name, as the 25th richest person in the world. That’s up 14 spots from 2018.

While that climb is impressive, what’s even more impressive is how much wealth Dell gained in just one year. In March 2019, Forbes estimated his net worth at $34.3 billion, up about 50 percent from $22.7 billion in March 2018. Between March 2015 ($19.2 billion) and March 2019, his net worth soared 80 percent, according to Forbes.

Dell is joined by four other Austinites in the world’s billionaires club.

Private equity investor Robert Smith appears at No. 355 among the world’s richest people, with a net worth of $5 billion. At No. 504 in the world is vodka mogul Bert “Tito” Beveridge, whose net worth is estimated at $4 billion. Also in the top 1,000 globally are Austin software titan Joseph Liemandt (No. 745, $3 billion) and hair care and tequila king John Paul DeJoria, (No. 916, $2.5 billion).

As eye-popping as Dell's numbers are, he isn't even the richest person in Texas. That title goes to Walmart heiress Alice Walton of Fort Worth, whose fortune is estimated at $44.4 billion. Forbes ranks her as the world’s 17th richest person and second richest woman.

Other Texans on Forbes’ 2019 list of the world’s richest people include:

• Andy Beal of Dallas, No. 158, net worth of $9.1 billion.
• Jerry Jones of Dallas, No. 224, net worth of $6.8 billion.
• Richard Kinder of Houston, No. 239, net worth of $6.6 billion.
• Dannine Avara of Houston, No. 290, net worth of $5.9 billion.
• Scott Duncan of Houston, No. 290, net worth of $5.9 billion.
• Milane Frantz of Houston, No. 290, net worth of $5.9 billion.
• Randa Williams of Houston, No. 290, net worth of $5.9 billion.
• Robert Rowling of Dallas, No. 334, net worth of $5.3 billion.
• Robert Bass of Fort Worth, No. 365, net worth of $4.9 billion.
• Tilman Fertitta of Houston, No. 394, net worth of $4.7 billion.
• Ray Lee Hunt of Dallas, No. 394, net worth of $4.7 billion.
• Trevor Rees-Jones of Dallas, No. 452, net worth of $4.3 billion.
• Mark Cuban of Dallas, No. 478, net worth of $4.1 billion.
• H. Ross Perot Sr. of Dallas, No. 478, net worth of $4.1 billion.
• Kelcy Warren of Dallas, No. 478, net worth of $4.1 billion.
• Dan Friedkin of Houston, No. 504, net worth of $4 billion.
• Janice McNair of Houston, No. 546, net worth of $3.8 billion.