Delta AG, founded in 1977 in Wels, Austria, has grown into a leading international architecture, engineering, and consulting firm. With over 400 employees across Austria, the Czech Republic, Slovakia, and Ukraine, the company manages real estate projects worth approximately 5 billion euros annually.

Originally established as Delta Holding GmbH by Knut and Otmar Drugowitsch and Wilhelm Greiner, the company converted to a stock corporation in June 2024. This move reflects Delta's expanding international presence and desire to increase employee ownership.

Delta AG specializes in architecture, general planning, and construction management, offering a holistic approach to building projects. The company emphasizes sustainability, digitalization, and partnership in its work. Notable projects include the renovation of the Elisabethinen building in Vienna, which won multiple awards for its blend of historical preservation and modern design.

The firm's portfolio spans various sectors, including industry, office, retail, education, residential, healthcare, and infrastructure. Recent projects showcase Delta's diverse capabilities, such as the Takeda Innovation Capability Centre in Bratislava, which earned recognition for its innovative office design.

As a member of various sustainability-focused organizations, Delta AG demonstrates a commitment to environmentally responsible construction practices. The company's leadership, including CEOs Wolfgang Kradischnig and Wolfgang Gomernik, continues to drive growth and innovation in the construction industry across Central and Eastern Europe.