Tecnicas Reunidas (TR) is an international general contractor engaged in the engineering and construction of industrial facilities in the fields of: Oil & Gas -Refining & Petrochemical, Power Generation, and Infrastructures and industries.

They are an international general contractor, engaging in the engineering, design and construction of various types of industrial facilities for a broad spectrum of customers throughout the world, including many of the principal national oil companies as well as several multinational companies.

Most of their business is concentrated on large turnkey industrial projects, although they also provide engineering, management, start-up and operating services for industrial plants.

TR is an outgrowth of the former Spanish subsidiary of The Lummus Company, Lummus Española, S.A., founded in 1960. In 1972, a Spanish group of investors acquired 100 % of the shares of Lummus Española and renamed the company toTécnicas Reunidas.

Since 1960 the TR group of companies has designed and built more than 1000 industrial plants worldwide.

TR has incorporated the most advanced systems and technologies based on the latest generation of data processing tools to manage and design the projects. More than 5.500 professionals have been trained and posses practical experience necessary to manage these projects.

TR develops all designs with 3D systems, and as such is able to produce "three dimensional virtual plant models" which eliminate potential problems derived from the integration of the various disciplines. This approach generates a highly accurate and quality product with a greater added value and is able to detect potential problems early in the design phase.