About us

Adeleon Familienholding GmbH

Learn more about our company and what we stand for.
Adeleon Logo
Vrebos Logo Monochromatic WhiteReal Windows LogoDe Hondt NV Logo Monochromatic WhiteBelcotecc Logo Monochromatic WhiteLuxelec  Logo Monochromatic WhiteKöhl SARL  Logo Monochromatic WhiteGielen  Logo Monochromatic WhiteDr Deppe Logo
Vrebos Logo Monochromatic WhiteReal Windows LogoDe Hondt NV Logo Monochromatic WhiteBelcotecc Logo Monochromatic WhiteLuxelec  Logo Monochromatic WhiteKöhl SARL  Logo Monochromatic WhiteGielen  Logo Monochromatic WhiteDr Deppe Logo
Vrebos Logo Monochromatic WhiteReal Windows LogoDe Hondt NV Logo Monochromatic WhiteBelcotecc Logo Monochromatic WhiteLuxelec  Logo Monochromatic WhiteKöhl SARL  Logo Monochromatic WhiteGielen  Logo Monochromatic WhiteDr Deppe Logo
Vrebos Logo Monochromatic WhiteReal Windows LogoDe Hondt NV Logo Monochromatic WhiteBelcotecc Logo Monochromatic WhiteLuxelec  Logo Monochromatic WhiteKöhl SARL  Logo Monochromatic WhiteGielen  Logo Monochromatic WhiteDr Deppe Logo
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

Sustainability

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

Diversification

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.

10+

With 10 locations in Europe, our operations are firmly rooted in the heart of the continent.

600+

We employ over 600 talented individuals, committed to excellence in all our endeavors.

10+

With 10 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.

De Hondt NV Logo

DE HONDT NV

DE HONDT NV offers high-end aluminum and PVC solutions for windows, doors, and more, with over 50 years of experience, focusing on quality and precision.
Köhl Sarl Logo

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.

Belcotec NV

Specializing in comprehensive design and implementation services for HVAC and electrical installations, with a focus on building a smart future.
Luxelec Building Technology SA Logo

LUXELEC Building Technology SA

Supplying technical building equipment and electrical engineering in Luxembourg, with a focus on innovation and sustainability.
Vrebos Logo

Vrebos  Systems NV

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

Real Win BV

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

Dr. Deppe GmbH

DrDeppe, founded in 1980, is a leading German provider of disinfectants and cleaning products, serving B2B clients like clinics and care facilities.
Gielen Logo

Gielen NV

Founded in 1985, Elektriciteitswerken Gielen NV grew from a small venture to a reputable, internationally recognized electrical works company.
IDS Elektro Logo

IDS – Elektro GmbH

IDS Elektro GmbH specializes in planning, production, and installation of low-voltage switchgear and control cabinets, serving various project sizes.

A statement from our CEO

Adeleon CEOs
"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

About Oliver Nehring

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.

Trust us for a smooth acquisition process

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.
chat icon
Hello, I’m Oliver! Talk to me directly about how we can help you secure your business legacy.