Billionaire Profile
Martin Viessmann
Global Rank
#1473

Image: Public domain | via Wikimedia Commons

Martin Viessmann

CEO, Viessmann Climate Solutions
DE
Real-Time Net Worth
$2.7B
As of December 2025
Age
72
Source
Heating and cooling equipment
Industry
manufacturing
Citizenship
DE

Biography

Martin Viessmann, a prominent German billionaire, is the chairman of the executive board of Viessmann Group, a leading manufacturer of heating and cooling equipment. Born in Allendorf, Germany, in 1953, Viessmann holds a diploma from the University of Erlangen. His career has been dedicated to expanding his family's business, which was founded in 1917. Viessmann is known for his commitment to sustainability and has been recognized for his contributions to the industry, including the Greentech Manager of the Year award in 2013. With a net worth of $2.7 billion, Viessmann continues to drive innovation and sustainable practices within the heating and cooling sector.

Wealth Over Time

In-Depth Profile

Early Life

Martin Viessmann was born in Allendorf, Germany, in either 1953 or 1954. He is the grandson of Johann Viessmann, who founded the Viessmann Group in 1917. Unlike his predecessors, Martin did not complete an apprenticeship, but instead pursued business administration at the University of Erlangen-Nuremberg. He also earned a doctorate in social and economic sciences from the University of Innsbruck in 1989.

Rise to Success

Viessmann joined the family business, Viessmann Group, as a commercial director in 1979. He became CEO in 1992 and led a large-scale internationalization campaign, increasing the foreign share of the business from less than 10% to over 50%. Under his leadership, the company expanded to 23 production divisions in 12 countries. In April 2023, the heating technology division of Viessmann was acquired by Carrier Global for 12 billion €, with the business continuing as Viessmann Climate Solutions SE.

Key Business Strategies

Viessmann has focused on energy-efficient products and has been a proponent of sustainable practices, including the use of renewable energy and reducing CO2 emissions. He has been instrumental in the company's commitment to sustainability and has positioned Viessmann as a key player in the global efforts to reduce carbon emissions and promote efficient climate control. The Viessmann Group has also invested in start-up companies and new ventures.

Philanthropy

The Viessmann Generations Group blends entrepreneurship with philanthropic commitments, investing in climate action, health, education, and poverty alleviation through the Viessmann Foundation and family-led initiatives. In 2025, the Viessmann Foundation committed to a €1,000,000 donation to Water.org to expand access to safe water and sanitation.

Career Milestones

1979

Commercial Director, Viessmann Group

Joined Viessmann Group as commercial director.

1992

CEO, Viessmann Group

Assumed sole management of the Viessmann Group, leading a large-scale internationalization campaign.

2012

Honorary Doctorate, University of Wisconsin

Received an honorary doctorate from the University of Wisconsin.

2013

Greentech Manager of the Year

Named Greentech Manager of the Year.

2016

Chairman of the Verwaltungsrat

Gave up the position as chairman of Viessmann and took on the role of chairman of the Verwaltungsrat.

Philanthropy & Social Impact

Health and Sanitation

Viessmann Foundation

€1.0M

Committed to a €1,000,000 donation to Water.org.

Health

Donation to German Cancer Research Center

€5.6M

Donated €5.6 million to the German Cancer Research Center.

Various

Viessmann Stiftung Battenberg

Unknown

Supports projects in science, education, healthcare, culture, heritage, nature conservation, and social welfare, primarily in the Battenberg region.

Education and Science

Hans Viessmann Technologie Stiftung

Unknown

Supports the advancement of engineering and natural sciences.

Business Philosophy & Leadership

Notable Quotes

"Everything we do for sustainability is the result of teamwork. Together, we are convinced that we can only keep up our standard of living and protect natural resources for future generations if we act sustainably."

Leadership Principles

Responsible

Acting with integrity, prioritizing long-term value, and delivering on commitments.

Team-oriented

Respecting, transparent, and inclusive.

Entrepreneurial

Generating ideas to enable tomorrow’s success, identifying customer needs and providing solutions.

Controversies & Challenges

2020

Hydrogen Use Controversy

Viessmann's push to deploy green hydrogen in the heating industry has been met with some controversy.