Our History

Our history

TEDAGUA (Técnicas de Desalinización de Aguas, S.A.), was established in 1983 in Las Palmas, Gran Canaria. In its beginnings it performed its business activities within the Canary Islands and the southeast of the peninsula, with sporadic incursions abroad.

Acquired by Grupo ACS in 2001, it was integrated into Grupo Cobra, and seen as a benchmark of design, manufacturing, operation, maintenance and engineering for desalination plants, purification systems for drinking and industrial waters, and urban and industrial wastewater treatment and reuse equipment.

The growth experienced by the company these last few years has led TEDAGUA to be considered today as one of the main companies in the water treatment sector in Spain, with contracts across the five continents.

Our Essence

At TEDAGUA we believe that the best way to effectively respond to the evolution of new needs in relation to water treatment and industrial solutions is specialization.

Water, our essence

In this way, we guarantee the highest levels of quality and service across every process, from the research of new solutions and the execution of projects, to post-sales services.

Throughout the last few years, TEDAGUA has carried out its business based on the research & development of new technologies applied to the water sector, and mostly aimed at increasing the performance of each process. Nowadays, processes such as the reuse of water or the desalination of brackish or sea water have gone from being considered complicated, expensive and dubiously reliable water obtainment processes to being more feasible, efficient and reliable.

As a result, we have developed an assortment of product lines that enable us to offer an effective solution to a wide range of issues: from Modular and Compact Plants that are characterized by their nonexistent or minimal construction work requirements, to plants for major population centers such as DWTP and WWTP, which are designed to treat high volumes of water at a minimal cost.

A few examples of this are the large quantity of desalination plants developed for hotel resorts or small-scale agricultural operations in the Canary Islands, the large Escombreras, Spain sea water desalination plants or those of Skikda and Beni-Saf in Algeria, in addition to tertiary water treatment centers such as the WWTP of Altona –near Melbourne, Australia– and the WWTP of Taboada in Lima, Peru – the largest in South America.

How we work

How we act

Each project is developed based on the characteristics of the water to be treated and its final use, offering a solution tailored to the specific needs of the project for each case.

We currently have over 150 desalination plants in operation with a global production capability of over 900,000 m3/day. This implies a significant experience in the water sector, proof of which is the satisfaction of our clients.

Our commitment to service prompts us to export our know-how and technology to practically anywhere in the world, which is in no small part facilitated by the support that being a part of Grupo COBRA (a subsidiary of A.C.S.) since the year 2001 implies.

Corporate Information

TEDAGUA Presentation

TEDAGUA Presentation

Corporate Brochure

Corporate Brochure

Oil & Gas Brochure

Oil & Gas Brochure

Human resources

How we act

At TEDAGUA we have built a multidisciplinary and highly specialized team, with young, dynamic personnel with significant experience in water and environmental sectors. We are equipped with the most cutting-edge techniques and technologies. Our knack for innovation, will to exceed our own expectations and pursuit of quality, in addition to our respect for the environment, mean that we can offer any advice that is needed for any project, regardless how ambitious.

Having the best professionals has led us to be leaders in our sector. Over 80% of our staff is composed of civil, industrial, agricultural, public works and chemical engineers, as well as bachelors in biology, geology and environmental sciences, supported by a great administration and general services team.

From our employees we demand a high degree of teamwork capabilities and a knack for continuous improvement, professionalism and responsibility, humility, commitment and customer focus, so as to be able to offer the highest degree of quality that sets us apart from the competition.


At TEDAGUA we are convinced that, in order to obtain high levels of satisfaction – both for us and for our customers – it is necessary to have a sustainable management system that is capable of optimizing human and material resources while being respectful of the environment and guaranteeing at all times the safety and wellbeing of workers and users, as well as the quality of the end product.

Para cumplir esta premisa, TEDAGUA tiene implantado un Sistema de Gestión que engloba las normas referentes a Calidad (UNE-EN-9001), Medio Ambiente (UNE-EN-14001) y la Prevención de Riesgos Laborales (ISO 45001). El Sistema ha sido sometido al proceso de certificación de AENOR en cada una de estas áreas, siendo además auditado a nivel interno por profesionales cualificados.

de I+D+i

Quality, environmental and energy efficiency policy

Occupational Hazard Policy




It is TEDAGUA’s belief that the best way to offer an effective response to the evolution of new needs related to water treatment and industrial solutions is specialization. As a result, we guarantee the highest levels of quality and service across each phase of every process – from the research of new solutions or the execution of projects to the post-sales service.. In this way, we guarantee the  highest levels of quality and service across every process, from the research of new solutions and the execution of projects, to post-sales services.

Our pilot plants are applied directly to new projects, thereby staying at the forefront of water treatment and environmental technologies.

We are currently working on several lines of research, which include:

Energetic valorization of WWTP sludge

Through its transformation into Biofuel. This line of research, undertaken by TEDAGUA in collaboration with patent holder IBS, consists of valorizing different residual organic matters such as WWTP sludge, pork manure, etc., in the form of a biofuel, which will be used as a heavy fuel.

Desalination cell prototype

Through low-pressure vaporization-condensation. The purpose of this project is to obtain a low-pressure distillation method through the direct use of sea water at surface temperature as the water to be vaporized, and sea water from deeper regions as a coolant for condensation, attaining the low pressure that is required for the vaporization process.