INTEGRAL – About us

INTEGRAL - Exceeding expectations

We are one of the leading plant construction and assembly companies in Austria and we are constantly gaining strength. Through our efforts to use proven technology and new technologies, we cover a wide range of business areas and services and offer our customers tailor-made, modern, and future-oriented solutions. As an innovative, dynamic, and team-oriented group, INTEGRAL also creates space for individual development and growth for highly motivated employees.

We make the difference

We believe that people perform optimally in their work environment when the company culture is characterized by trust, mutual respect, and open communication. We aim to create a working environment at INTEGRAL for our employees where they can develop in their areas of responsibility, thus providing an interesting and varied workplace for young talents and experienced specialists to achieve their professional goals.

Belonging to the best in the market with passion.

INTEGRAL is an Austrian, family-owned company with a successful history of more than 50 years. Over the decades, a strong, financially independent group of companies has emerged, offering its customers a wide range of solutions tailored to the specific fields of operation in the Austrian, European, and Asian markets with passion, cohesion, and commitment. The company also fosters the professional and personal growth of its employees.

Corporate group

The companies of the INTEGRAL Group operate in various business areas in the fields of plant engineering, environmental technology, and building technology in the national and international markets As a strong and competent partner in the industrial, energy, and technology sectors, we offer our customers a wide range of services for all project phases, including planning, engineering, procurement, manufacturing, assembly and commissioning, as well as maintenance and servicing. We also deliver turnkey solutions as general contractors.

All companies within the INTEGRAL Group operate at the highest professional level and always adhere to the highest quality and safety standards in their services. The synergies resulting from the positioning of the corporate group as a strong and diverse entity also enable the combination of coordinated and, if necessary, individually tailored services for complex tasks.

The corporate group employs around 500 highly motivated and professionally skilled employees. The group is led by the strategic management holding company INTEGRAL Group GmbH, represented by Dr. Peter Göstl (CEO) and Mag. Franz Riebenbauer (CFO). The company also serves as the parent company of the individual companies of the group.

Montage und Anlagentechnik GmbH

Managing directors: Mag. Franz Riebenbauer, Ing. August Zrust

Core competences: Comprehensive assembly services for the construction of industrial plants, power plants and underground pipeline systems. We cover all project phases from planning to maintenance, and also deliver turnkey solutions as general contractors for our customers.

Engineering und Umwelttechnik GmbH

Managing directors: Mag. Franz Riebenbauer, DI Stefan Graf, BSc

Core competences: Technological competence center within the INTEGRAL Group. In addition to comprehensive engineering services, we offer our customers future-oriented and sustainable solutions in the field of energy and environmental technology, especially in the area of flue gas purification technology.

Gebäudetechnik GmbH

Managing directors: Mag. Franz Riebenbauer, Mag. Thomas de Jong

Core compentences: Planning, construction, and maintenance of building installation. Energy optimization and efficiency are important to us, as is the use of alternative energy, in order to provide our customers with tailored and innovative solutions, especially for the heating and cooling supply of properties.

Bau- und Rohrleitungsbau GmbH

Managing directors: Mag. Franz Riebenbauer, Ing. August Zrust

Core competences: Construction and installation of pipeline systems in the district heating and gas sector, as well as comprehensive assembly services in the industrial service and plant engineering sectors. Years of experience and well-trained personnel guarantee reliable and expert execution.


Leadership with heart and mind

The commitment, passion, cohesion, and expertise of our employees and management team are the secret to our success. We take pride in always being able to offer our customers the best tailored solutions. Our leaders are distinguished by their broad expertise and ensure sustainable corporate success through their competence and years of experience. The leaders of the INTEGRAL Group are committed to a cooperative leadership style, providing their employees with space for personal development and entrusting them with responsibility. The relationship between leaders and employees is based on appreciation, mutual respect, and open communication. This is an essential part of our team-oriented corporate culture.


Our beliefs

The satisfaction of our customers, the well-being of our employees and the sustainable continuity of the corporate group are the top priorities in all decisions.

Stability with success

As a financially independent company with decades of experience, we are able to adapt flexibly and quickly to changing market and competitive conditions.

This independence makes us a strong and reliable partner for our customers in achieving shared success.

Integrity with team spirit

Integrity forms the foundation of our business activities. We are committed to our values and align our actions with these principles.

Our strength lies in teamwork and the belief that a loyal, fair, and trusting relationship with employees, partners, society, and the environment leads to sustainable success.

Expertise with passion

We master projects and challenges with our knowledge, many years of experience and joy in our daily work. Ambition and the highest quality standards drive us to find the best solution for our customers.

With commitment and enthusiasm, we set things in motion for our customers, partners, and employees.

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