Leading Swiss engineering and consulting firm specializing in building technology, electrical engineering, and energy advisory. Founded in 1978, now operates with ~200 employees across multiple Swiss locations focusing on sustainable energy solutions.

Where is Hkg located?

Hkg is headquartered in Aarau, Switzerland.

What energy sectors does Hkg operate in?

Hkg operates in Solar, Energy Storage.

How many employees does Hkg have?

Hkg has approximately 200-500 employees.

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Hkg

Herzog Kull Group Holding AG

Aarau, Switzerland

SolarEnergy StoragePrivate

Founded 1978200-500 employees

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About

Founded in 1978, Hkg is a private headquartered in Aarau, Switzerland with approximately 200-500 employees specializing in Solar, Energy Storage.

Hkg is an independent engineering and consulting firm providing comprehensive building technology services across Switzerland. Established in 1978 as Herzog Kull Group, the company has evolved into a leading provider of electrical engineering, building technology, and energy consulting. The firm operates through interdisciplinary project teams delivering optimized and sustainable solutions for building infrastructure. Core competencies include complete electrical planning, building automation, and energy efficiency across the entire lifecycle of properties. The company emphasizes neutrality, technical expertise, and reliability as core values. As of October 2025, AEW Energie AG acquired a 35% stake in the holding company.

Headquarters

Aarau, Switzerland

Founded

1978

Employees

200-500

Company Type

Private