Today’s Billionaires: Demographics, Industries and Interests Across Wealth Levels

Wealth matters. Even among the rarefied elite of the billionaire class, there are large variations in wealth level and a steep hierarchy that can have a significant bearing on the business ownership, market influence, personal interests, and industry concentration of the super rich. Following the Billionaire Census 2025, we released Part Two: Billionaires and the Divide Between Public and Private Business Ownership. Here in Part Three, we bring to light key characteristics of the billionaire population, with a focus on wealth levels.

More than half of all billionaires have a net worth below $2bn, whereas a highly privileged 1% hold enormous fortunes in excess of $50bn. Using Altrata’s extensive database of the global wealthy, here we highlight a variety of billionaire characteristics, providing an overview of demographics and wealth source, and drawing out key themes and variations across three different billionaire wealth tiers (those with $1bn to $2bn; those with $2bn to $5bn; and those with a net worth of more than $5bn) with regard to industry focus, preferred interests and hobbies, the distribution of luxury assets, and philanthropic activity.

Demographics

The global billionaire class is heavily male dominated, with women accounting for a 13% share.

Female representation is on a (very) gradual upward path, influenced by shifting regional patterns of global wealth, slowly evolving cultural (and boardroom) attitudes, more accessible and diverse market opportunities for capital accumulation, and the rising number of inter-generational wealth transfers. This is reflected across the different age brackets, with moderately higher female representation among the billionaire demographic aged under 50.

Fewer than one in 10 global billionaires is aged under 50.

While global advances in technology have accelerated the wealth-creation process for a number of individuals, it remains the case that unless one is a beneficiary of substantial inherited wealth, considerable time is usually required to create and/or accumulate a fortune that garners billionaire status. It will often take the best part of a professional career to develop a very high-value business and wealth portfolio, even with a boost from startup capital or inheritance. This is reflected in the age profile of the global billionaire population, with 46% aged over 70 and just 9% younger than 50. The median age of the billionaire class is 68.

Source of wealth

Some 61% of the billionaire class have self-made fortunes, while 8% have gained their wealth solely via inheritance.

Most wealthy individuals around the world have generated their own net worth and this is the case for the global billionaire population – three in five have amassed self-made fortunes. About 30% of the billionaire class have cultivated their net worth through a combination of inheritance and self-created wealth, with a slightly higher share evident among the younger billionaire demographic, a nod to the rising frequency of inter-generational estate transfers and family gifting within an expanding global wealthy class. Solely inherited wealth is far more common among billionaire women than men, although, reflecting the aforementioned trends, there are signs of the gender ratio narrowing for the younger generations.

Primary Industry

Financial services is the dominant billionaire industry, with technology also prominent in the highest wealth tier.

Banking and finance has long been the primary industry focus of the largest share of the billionaire class, and this remains the case across all three wealth tiers. Within each cohort, one in five billionaires has financial services as their main commercial focus (the highest concentration is in the $5bn+ tier), which is around twice the share of the second-ranked sector.

The two lower billionaire wealth tiers exhibit a similar primary industry distribution. In both cases, industrial conglomerates ranks second, ahead of business and consumer services, and real estate. The respective shares of these industries are near identical among billionaires in the $1bn-$2bn tier, whereas industrial conglomerates is the clear second-ranked business focus for those in the $2bn-$5bn tier. By their very nature, the scale and diversified form of industrial conglomerates are more often than not the result of multi-generational business development, generally in ‘older economy’ sectors such as retail, manufacturing and energy. The non-profit sector ranks as the fifth most common industry focus in the two lower wealth tiers, ahead of technology.

There are larger variations in industry focus among the group of $5bn+ billionaires. The standout is the higher representation of technology, which at 12% ranks second after financial services and is double the share of the lower wealth tiers. Considerable attention is focused, understandably, on the clique of tech moguls at the peak of the billionaire wealth pyramid – eight of the world’s top 10 richest people amassed their fortunes via tech and digital adoption – but there is a broader (if still select) group of global entrepreneurs who have crafted substantial net worth in the technology space. For other industries, the proportion of $5bn+ billionaires with a commercial focus on business and consumer services, real estate, and the non-profit sector is lower than for the other wealth tiers, whereas it is higher in hospitality and entertainment, and energy, although in each case the differences are relatively modest.

Luxury Asset Allocation

Real estate and luxury assets comprise just 2% of the total wealth holdings of the $5bn+ billionaire class.

In most wealth tiers below the billionaire class, an individual’s total net worth holdings in real estate and luxury assets (such as art, jewelry, fine wine, and vehicles) will tend to represent a sizable share of their overall portfolio. For the vast majority, a person’s wealth will be concentrated primarily in their value of their home. Even among the highly exclusive cohort of ultra wealthy individuals (each with a net worth in excess of $30m), real estate and luxury assets comprise, on average, about a fifth of their respective fortunes.

The share is considerably lower among the billionaire class, which underlines the sheer scale of wealth enjoyed by those privileged to be a part of the $1bn+ club. For those with a net worth of up to $5bn, the cumulative stock of real estate and luxury assets accounts for a minor 4% of their total wealth. This share falls to just 2% among the select group of approximately 600 global billionaires that have fortunes in excess of $5bn.

For the majority of billionaires, the largest proportion of their respective wealth will tend to be in privately owned investments or in the form of liquid assets (such as cash, income and dividends). The share of public holdings is generally lower on an individual basis, although still greater than that of real estate and luxury assets. One point to note is that equity holdings are more common among billionaires in the technology sector than in most other industries, which, given the extreme wealth held by a small number of tech entrepreneurs, can present a skewed distribution of asset allocations on an aggregated wealth basis.

Interests, passions and hobbies

Philanthropy and sports are popular across all tiers, with wealthier billionaires also having a strong interest in aviation.

Across all three wealth tiers, philanthropy and sports stand out as the two favorite interests. Billionaire engagement in charitable activity is long established and, as a general rule, tends to increase with age and net worth, often reflecting the prioritization of interests and a greater obligation to ‘give back’ to society in later life. The increasing global scope of inherited wealth among younger individuals and the rise of the tech ‘super-billionaire’ cohort (among whom the extent of charitable giving is comparatively low) are refining these patterns to an extent. However, around half of all billionaires are known to be actively involved in philanthropic giving, either through charitable organizations they have established for this purpose or through other means. The share of billionaires with a keen interest in sports also rises in the higher wealth tiers. This partly reflects the fact that the wealthiest individuals have greater individual freedom and time to enjoy sports as an active leisure pursuit or for social relaxation. It also demonstrates the broadening opportunities for the super rich to participate in the sporting domain for investment and the prestige of ownership, given the growth in lucrative media rights and sports franchises.

Aviation (in the sense of private jet ownership or luxury charters) ranks as the third most common interest in all three wealth tiers, with engagement also increasing in line with net worth. Its popularity is almost on a par with sports among the most well-heeled billionaires. The private jet market has experienced firm growth in recent years. Rising sales of larger and longer-range aircraft reflect the status demands of the world’s wealthiest individuals and the increasingly diverse global spread of their commercial interests, leisure pursuits, and real estate holdings.

Art collecting, boating, and politics stand out as other interests that are more popular among billionaires with a net worth of $5bn or more. More so than for some other luxury assets, art collecting will commonly reflect an investment focus at corporate/institutional level, as well as for personal enjoyment. In common with aviation, rising global wealth is supporting demand in the luxury yacht market as more emerging hotspots develop luxury facilities to attract the superyacht elite. Political elites have always courted the wealthy for funding purposes and wealthy individuals are often attracted to politics. While the ‘wealthification’ of politics can vary dramatically by country, there is an increasing sense that the expanding wealth and economic power of the global billionaire class is wielding a more inequitable influence over political systems around the world.

Leading philanthropic causes

Education is the most popular area for philanthropic activity, followed by social services and healthcare.

Whether influenced by global developments, personal motivations or local issues, billionaire donors have a wide range of charitable causes to which to give. However, there are a number of areas that consistently attract the largest shares of donations, with the relative popularity of billionaires’ favorite philanthropic causes broadly similar across the wealth tiers. The main difference is the overall higher degree of engagement by the $5bn+ cohort in all the leading categories, when compared with their less wealthy counterparts.

Education is the top charitable cause across all three tiers, reflecting a broad range of philanthropic activity directed towards scholarships, educational support and outreach programs, teacher training, higher education funding and more. This includes alumni gifts to alma maters – a longstanding tradition in the US that more institutions around the world are seeking to emulate as schooling (and wealth) become more globalized and as public funding sources are squeezed. There is also broad interest in donating funds to enhance and improve access to social services, and to support healthcare provision and medical research. The fourth most popular cause is the arts and culture, which is likely to have a more personal slant than most other fields. Donating to the arts can offer high-profile philanthropic opportunities as these areas tend to attract media attention and interest from other wealthy individuals.

For more insight into the billionaire population and the latest trends, access our Billionaire Census 2025 report.

About the authors

Maya Imberg is the Head of Thought Leadership and Analytics at Altrata. She is responsible for spearheading the company’s thought leadership efforts and overseeing its analytics and predictive modeling services commissioned by clients. She joined Altrata’s Wealth-X in 2016 as Director of Custom Research responsible for secondary research, data analytics and branded content.

Maya has over fifteen years of experience in research, spanning market research, macroeconomics and financial services. Prior to joining Wealth-X, Maya held a variety of consultant and economist roles at the Economist Intelligence Unit and spent a number of years working for Datamonitor’s Financial Services practice. Maya holds an undergraduate and MSc degree in economics and comparative politics from the University of Pennsylvania and London School of Economics respectively.

Maeen Shaban is Director of Research and Analytics at Altrata, where he leads a revenue-generating analytics function delivering bespoke insights on global wealth and influence. With a background in financial engineering and advanced research into sovereign wealth strategies, Maeen brings deep analytical expertise and commercial acumen to the evolving landscape of private wealth.

He plays a central role in shaping Altrata’s global thought leadership program, co-authoring its flagship publications including the World Ultra Wealth Report and the Billionaire Census. His work draws on proprietary datasets, financial modelling, and targeted research to support strategic decision-making across the private wealth, luxury, and philanthropic sectors.

Maeen’s current focus includes wealth transfer trends, the role of single family offices, and the spending priorities of the ultra-wealthy—insights that are increasingly valuable to businesses navigating the expectations and behaviors of today’s most affluent individuals and families.