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Billionaire Profile
Stefan Wirtgen
Global Rank
#1378

Image: Stefan Kühn | Public domain | via Wikimedia Commons

Stefan Wirtgen

CEO, Construction Vehicles
Neustadt, Germany
Real-Time Net Worth
$3.11B
Estimated based on Construction Vehicles stock value as of September 10, 2026
0% (24h)
Age
55
Source
Construction Vehicles
Industry
Construction & Engineering
Citizenship
Germany

Biography

Stefan Wirtgen, a German billionaire, is a prominent figure in the construction equipment industry. He inherited his wealth from the Wirtgen Group, a leading manufacturer of construction vehicles, alongside his brother. Wirtgen's career began after he and his brother took over the management of Wirtgen Group in 1997. The company was founded by his father, Reinhard Wirtgen, in 1961. In 2017, Wirtgen Group was sold to John Deere for $5.2 billion. Post-sale, Stefan and his brother established Wirtgen Invest, a family office. Wirtgen's contributions and leadership have been instrumental in shaping the construction equipment sector, leaving a lasting impact on the industry.

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Data Updated
Sep 10, 2026
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Wealth Over Time

Net Worth History

YearNet Worth
2026$3.11B
2025$3.20B
2024$2.90B

Portfolio Holdings

Wirtgen Invest

Wirtgen Invest

Family Office
Windhagen, Germany
Founded 2017

In-Depth Profile

Early Life

Stefan Wirtgen, born in Germany, comes from a family with a strong presence in the construction equipment sector. His father, Reinhard Wirtgen, founded the Wirtgen Group in 1961. From a young age, Stefan was exposed to the intricacies of the business, witnessing firsthand the growth and development of the company.

Rise to Success

In 1997, Stefan Wirtgen and his brother Jürgen took over the management of Wirtgen Group, marking a significant transition in the company's history. Under their leadership, the company continued to thrive, expanding its operations and solidifying its position as a leader in the road construction industry. A key moment came in 2017 when the Wirtgen Group was acquired by John Deere for $5.2 billion.

Key Business Strategies

Following the sale of the Wirtgen Group, Stefan Wirtgen, along with his brother, established Wirtgen Invest, a family office. This strategic move allowed them to diversify their investments, focusing on areas such as energy, real estate, healthcare, consumer goods, and finance. Wirtgen Invest has made numerous passive investments since its creation.

Philanthropy

Stefan Wirtgen, together with his brother, founded the Jürgen Wirtgen Stiftung and the Stefan Wirtgen Stiftung in 2020. These foundations are primarily involved in local and regional projects in Germany, with a focus on emergency aid, poverty reduction, education, and sports. These philanthropic efforts reflect a commitment to social responsibility and community development.

Career Milestones

1997

Took over Wirtgen Group Management

Stefan and his brother Jürgen took over management of the Wirtgen Group.

2017

Wirtgen Group Acquired

John Deere acquired the Wirtgen Group for $5.2 billion.

2020

Founded Wirtgen Stiftungen

Established the Jürgen Wirtgen Stiftung and the Stefan Wirtgen Stiftung, focusing on local philanthropy.

Philanthropy & Social Impact

Poverty Reduction

Housing First

Undisclosed

Support for homeless people through the Caritas Neuwied.

Community Development

Regional Commitment

Undisclosed

Renovation of a youth center in Neustadt-Rahms.

Emergency Aid

Emergency Aid

Undisclosed

Offering assistance in Ukraine.

Business Philosophy & Leadership

Notable Quotes

""The Wirtgen Group has a legacy of technology and innovation with market-leading products and a strong focus on the customer.""

Leadership Principles

Customer Focus

Prioritizing customer success and satisfaction.

Innovation

Committed to technology and innovation in the industry.

Employee Dedication

Recognizing the importance of dedicated employees in achieving success.

Billionaires Connected to Stefan Wirtgen

Peers in Construction & Engineering

All Construction & Engineering billionaires

Adjacent Global Ranks

Full global ranking

Frequently Asked Questions

What is Stefan Wirtgen's net worth in 2026?
As of 2026, Stefan Wirtgen's estimated net worth is $3.105 billion, ranking #1378 among the world's billionaires. The estimate is based on publicly available shareholding data and market prices, updated daily.
How did Stefan Wirtgen make their money?
Stefan Wirtgen's wealth primarily comes from Construction Vehicles, most notably through Construction Vehicles.
Where is Stefan Wirtgen from?
Stefan Wirtgen is from Germany.
How old is Stefan Wirtgen?
Stefan Wirtgen is 55 years old.

Sources & References

  1. Stefan Wirtgen — Forbes profile Forbes