Components for the power grids of tomorrow.

Certified steel construction combined with insulators and bushings. We deliver key system components for transformers, switchgear, and generators.

Our product catalogues Contact us

Integrated System Solutions

Synergy for energy networks: Mechanical engineering meets electrical insulation.

As a system partner to the international transformer industry, we combine two key areas of expertise under one roof.

The combination of large-scale metal processing at our facilities in Sevnica and Usora and the electrical engineering expertise of GIPRO and Pernitz enables integrated solutions for the power supply of tomorrow.

Portfolio & Expertise

Two worlds, one quality.

Transformer Accessories & Insulators

We develop customized porcelain bushings, epoxy resin insulators (GIPRO), and accessories that ensure maximum electrical safety, reliability, and durability in grid operations.

About transformer construction

Schweißende Person mit Maske - Schweißkonstruktionen PREIS Group

Steel Constructions

We manufacture oil-tight transformer tanks, cooling elements, and complex welded assemblies for the power transmission, rail, and transportation sectors, as well as for offshore applications.

Explore steel constructions

Industry Solutions

Applications of our components.

Transformer Construction

For tank components, mountings, and insulators for power transformers.

Energy Infrastructure

Components for all power ranges in power stations, substations and switchgear.

Industry & Rail

For steel structures in mechanical engineering, plant engineering, and rail transport.

ESG & Service Life

Sustainability and standards.

Enablers of the energy transition
Without secure grids, there is no green energy. We supply international energy companies with safety-critical components – from tanks to insulators – to distribute electricity from wind and solar efficiently and reliably.
Driving innovation for environmental protection
As a corporate group, we actively drive sustainable industry solutions – whether through the development of recycling loops for insulating materials or through major investments in green production technologies at our locations.
Long-term grid reliability
A transformer must operate for decades. Our cross-site manufacturing in accordance with environmental and quality standards (ISO 14001, ISO 9001) ensures maximum durability while conserving global material resources.

Our ESG strategy