What successful entrepreneurs have in common

The myth of the garage founder

Steve Wozniak has himself debunked the world's most famous founding story. In a 2014 interview with Bloomberg Businessweek he said the Apple garage was "a bit of a myth". Nothing was designed there, nothing was built and nothing was produced. The garage was simply the place where two people without money felt at home.

The story persists nonetheless, because it serves a need: success is meant to come out of nowhere, out of a flash of inspiration and daring. But if you look at successful entrepreneurs not individually but in their thousands, you find other things they have in common. They are less glamorous, but they are backed by evidence.

Successful entrepreneurs are older

The largest study on this comes from researchers at MIT, the Kellogg School and the US Census Bureau. They analysed data on 2.7 million founders who hired employees in the US between 2007 and 2014. The result: the founders of the fastest-growing 0.1 per cent of all new companies were on average 45 years old at the start. A 50-year-old founder was 1.8 times as likely to build a top-performing company as a 30-year-old. That also holds for technology sectors and start-up hubs such as Silicon Valley.

An earlier survey by the Kauffman Foundation of 549 founders of successful growth companies fits the picture. The average age at the time of their first own company was 40. Almost 70 per cent were married, almost 60 per cent had at least one child. The typical successful founder therefore looks more like a department head with a family than a college dropout.

Germany is clearly below that in terms of age. According to the KfW Start-up Monitor 2025, founders here were on average 34.2 years old, and 40 per cent were under 30. The KfW, however, counts all start-ups, not the most successful ones. And that is exactly the difference the US study makes visible: young people found companies frequently, older ones more often grow them strongly.

Industry experience beats genius

Why do older founders do better? The US researchers found a plausible explanation: experience in precisely the industry in which the company is founded. Anyone who had worked at least three years in their industry before founding was twice as likely to build a company in the fastest-growing 0.1 per cent. Successful entrepreneurs know their market, their customers and their suppliers before they start.

In the Kauffman survey, too, the founders named their previous professional experience as the most important success factor, alongside learning from earlier successes and mistakes and having a strong management team. Professional networks were considered important by 73 per cent. Venture capital, by contrast, went to only 11 per cent of first-time founders. Most successful companies emerged without investors, with experience as the most important starting capital.

The fact that investors nevertheless like to back young founders is explained by the researchers with cheaper stakes and a persistent misconception. Mark Zuckerberg once put it bluntly: young people are just smarter. The figures say otherwise.

Founding on the side lowers the risk

Successful entrepreneurs are seen as daredevils who bet everything on one card. Two researchers at the University of Wisconsin tested this using a large American longitudinal survey. Their result: those who first built their business alongside their job and only switched once it carried itself failed 33 per cent less often than founders who quit immediately. These "hybrid" founders barely differed in their appetite for risk from employees who never founded anything.

The researchers point to eBay and Nike, both of which began as side projects. In Germany this route is the norm: of around 690,000 business start-ups in 2025, according to the KfW, 483,000 were part-time and only 206,000 full-time. The cautious approach is therefore neither entrepreneurial cowardice nor an exception. Statistically, it is the smarter way.

Success rubs off, wealth less so

Another pattern: success repeats itself. Researchers at Harvard Business School studied founders of venture-backed companies. Anyone who had already taken a company public managed to do so again with the next one in 34 per cent of cases. First-time founders reached 22 per cent, founders with a failed predecessor 23 per cent. Part of this is skill, such as a feel for the right market and the right moment. Part of it is reputation: once you have been successful, you find customers, suppliers and money more easily.

The family home also leaves its mark, but differently than assumed. A Swedish study using adoption data shows that children of entrepreneurs are around 60 per cent more likely to found a business themselves. Growing up with entrepreneurial parents had twice the effect of biological origin. The researchers see role models as the explanation, not genes or money. The Kauffman survey fits with this: over 90 per cent of the successful founders came from the middle class or the upper lower class.

Personality explains little

That leaves the question of character. Is there such a thing as the entrepreneurial personality? A review by researchers at Harvard Business School and Wellesley College examined the studies published since 2000: self-efficacy, achievement motivation, risk propensity, the big five personality traits. Their conclusion is sober. The findings often contradict each other because entrepreneurship is too varied: the owner of a craft business and the founder of an investor-funded software company have little in common. Whether personality predicts a company's success is, the authors say, remarkably under-researched.

For managing directors and HR managers this has a practical side. Anyone looking for a successor, selecting executives or working with founders should look at what makes a measurable difference: years in the industry, a network, earlier successes and an approach that limits risk. Charm and youthful ambition are pleasant extras. On current evidence, they are not a mark of success.