About us

Adeleon Familienholding GmbH

Learn more about our company and what we stand for.
Adeleon is a prime example of a thriving family-owned business, where management, capital, and family ties are deeply intertwined. This synergy has been the cornerstone of our economic prosperity for more than 77 years. At the heart of our company are three families who have imbued the company culture with their values since its inception in 1946. Today, our team honors the legacy of our founders and feels a sense of duty to uphold and propagate their values into the future.

Our values


We value sustainable business practices that promote environmental and social responsibility.


We value diversification as a means to build a stronger and more resilient business for the long term.

Corporate responsibility

We value corporate responsibility and commit to acting in the best interests of society, the environment, and our shareholders.

Our company structure


With 7 locations in Europe, our operations are firmly rooted in the heart of the continent.


We employ over 300 talented individuals, committed to excellence in all our endeavors.


With 7 thriving subsidiaries amplify our market reach, providing a strong foundation to build upon.

Join our subsidiaries

Our subsidiary companies offer exciting opportunities in the energy, engineering, and construction industries. We take immense pride in announcing that our acquired companies have been recognized as top employers within their respective industries.

KÖHL: WESTFA's subsidiary offering specialized solutions in electronics, switchgear, and mechanical engineering for energy, intralogistics, and automation.

KÖHL s.à r.l.

Providing specialized electronics, switchgear, and mechanical engineering solutions for energy, intralogistics, and automation.
Belcotec: WESTFA subsidiary specializing in smart HVAC and electrical installations for a sustainable future.


Specializing in comprehensive design and implementation services for HVAC and electrical installations, with a focus on building a smart future.
Luxelec, a WESTFA subsidiary, providing innovative and sustainable technical building equipment and electrical engineering in Luxembourg.

LUXELEC Building Technology SA

Supplying technical building equipment and electrical engineering in Luxembourg, with a focus on innovation and sustainability.
Subsidiary Vrebos: Expert in PVC and aluminum windows, doors, and verandas with comprehensive consulting and installation services.

Group Vrebos

Specializing in consulting, producing and installing windows, doors and verandas in both PVC and aluminum.
RealWin: A trusted partner for professionals, supplying quality windows and doors for over 40 years


A trusted partner of professionals for more than 40 years supplying various products related to windows and doors.

A statement from our CEO

"WESTFA is committed to a sustainable and diversified future. Investing in green and sustainable companies for a positive impact on society and the environment. Prioritizing sustainability and corporate responsibility for value creation across stakeholders." Oliver Nehring, CEO, WESTFA Holding
"As a family-owned company, we are committed to a long-term vision of building a sustainable and diversified business. We uphold our heritage in gas, while also looking towards a greener future by investing in green and sustainable companies through our acquisition strategy. Our commitment to corporate responsibility means that we strive to make a positive impact on society and the environment in all our operations. We will continue to reduce our carbon footprint through our investments and actively seek out ways to contribute to a sustainable future. Our promise is to create value for all our stakeholders, including our customers, employees, and the planet, by prioritizing sustainability and corporate responsibility in all aspects of our business."
Oliver Nehring
CEO Adeleon Familienholding GmbH
Oliver Nehring was born in Dortmund in 1971 and pursued a degree in mechanical engineering at the University of Dortmund before continuing his studies at the Wharton School in Philadelphia.

He began his career at Mannesmann Demag Fördertechnik in the construction department, followed by a role in purchasing at DaimlerChrysler. In 2000, Oliver joined Vaillant, where he initially managed a purchasing department and later oversaw three production facilities in Bavaria and Slovakia for the heating manufacturer. Subsequently, he took charge of Vaillant's entire Eastern European sales operations.

In 2013, he moved to Adeleon. There he focused the company on its core business and significantly expanded the liquefied natural gas business through acquisitions and start-ups. Since joining, Adeleon has acquired more than 20 companies across Europe, experienced significant growth and started diversifying into areas outside the gas business in 2021.

Oliver is married with three children and is fluent in German, English, and Slovak. When he is not working on Adeleon's future, he enjoys road cycling and watching football.

Shape your company’s future success with us

Partner with us to ensure a smooth and successful transition and solve your succession problem, giving you peace of mind. You can trust us to take care of your legacy while you focus on what's next for you.
"Honoring your team's dedication and supporting their success - WESTFA Holding values your company's backbone." Martijn Megens, Managing Director M&A-Transactions, WESTFA Holding
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Hello, I’m Martijn! Talk to me directly about how we can help you secure your business legacy.