10 individuals with the highest likelihood of attaining a trillionaire status.

• At least a half-dozen companies have hit the $1 trillion mark.
• Next up could be the first individual person to become a trillionaire.
• In the next decade, the first trillionaire could emerge, marking a milestone 100 years after the first billionaire.

The original article was published in CNBC's Inside Wealth newsletter with Robert Frank, providing a weekly guide for high-net-worth investors and consumers. To receive future editions, subscribe and have them delivered directly to your email inbox.

On September 29, 1916, newspapers across the country declared a previously unattainable wealth milestone: the world's first billionaire.

"The New York Times headline announced that Standard Oil's $2,014 oil price has made John D. Rockefeller, the founder and largest shareholder, almost certainly a billionaire."

Who will be the first to reach the trillionaire mark after more than a century since the first U.S. billionaire in measurable dollar terms? At least six companies have achieved this feat, with the most recent being , which surpassed $1 trillion just before Warren Buffett's 94th birthday. Currently, is at $2.6 trillion, having joined the 13-figure club last year.

Elon Musk is predicted to become the first trillionaire based on average annual growth rate in wealth, according to a new report from Informa Connect Academy.

The Bloomberg Billionaires Index currently lists Musk as the world's wealthiest individual, with a net worth of $251 billion. According to Connect Academy's projections, Musk is expected to achieve trillionaire status by 2027, provided that his wealth continues to grow at an annual average rate of 110%.

According to the report, India's Gautam Adani, founder of the Adani Group conglomerate, is projected to become the second trillionaire in 2028 if he maintains his recent annual growth rate of 123%.

According to a report, Jensen Huang, CEO of Nvidia, who has experienced a wealth increase from $3 billion to over $90 billion in five years, is projected to become a trillionaire by 2028. To achieve this, his wealth must grow at an average annual rate of 112%. Nvidia's stock has already risen by approximately 115% this year, following a more than tripling increase last year.

Prajogo Pangestu, the founder of Barito Pacific, an Indonesian energy and mining conglomerate, is predicted to become a trillionaire by 2028, according to the report.

The report predicts that CEO Bernard Arnault, currently the world's third richest person with just under $200 billion, will become a trillionaire by 2030, along with CEO Mark Zuckerberg.

Despite being strong contenders to join the four-comma club, some top billionaires do not make the top 10 list. Jeff Bezos, currently the world's second richest person with $200 billion, is ranked 12th and will not become a trillionaire until 2036. Similarly, Larry Page and Sergey Brin, the founders, are also predicted to wait 12 years to achieve trillionaire status, although the rise of artificial intelligence may accelerate their journey.

For years, wealth-watchers have predicted the emergence of the first trillionaire. However, it is possible that the stocks of Tesla, Nvidia, and LVMH may not experience the same level of growth in the next five years as they did in the previous five.

In the next decade, the first trillionaire could be crowned, marking more than a century since the first billionaire emerged.