Engineering, industry and purpose.
Since 2015, we have evolved to meet new challenges in water treatment, filtration and energy efficiency. Today, we bring together technical expertise, industrial capabilities and specialist teams under one identity: KEIKEN Group.
From specialist engineering firm to industrial group.
KEIKEN was founded in 2015 as an engineering company specialising in water treatment, with one conviction: a sound technical solution must also work in practice.
Over the years, we expanded our expertise, developed manufacturing capabilities and added new lines of business in filtration and energy efficiency. This evolution enabled us to take on more diverse projects, work with new sectors and strengthen our international presence.
In 2026, this journey became KEIKEN Group: three specialist divisions sharing experience, resources and a common way of working.
Three divisions. One shared vision.
We bring together three areas of expertise to address challenges involving water and energy. Each division has its own solutions and know-how, backed by the experience and resources of the group.
Engineering and manufacture of compact plants
We design and manufacture modular solutions for desalination, drinking water treatment and water reuse, tailored to the technical and operational requirements of each project.
Solutions for more efficient energy use
We deliver photovoltaic installations, EV charging systems and energy-efficiency solutions for businesses and households, supported by maintenance and technical services.
Materials and equipment for water treatment
We supply filtration media, polyelectrolyte preparation units, pressure filters and consumables, with technical advice to select the right solution for each application.
The people behind every project.
Behind every solution are people with different specialisms, experience and responsibilities. Engineers, technicians, manufacturing specialists and professionals in management and customer service work together to turn each project’s requirements into tangible results.
From Madrid and Barcelona, we share knowledge, coordinate decisions and maintain direct relationships with our clients. We believe teamwork, practical experience and continuous improvement are essential to the way we work.
From technical expertise to delivery.
We see every project as an end-to-end process in which technical decisions must be connected to execution and operation. That is why we work from the initial assessment through to delivery, with a focus on coordination, quality and each client’s real needs.
01. Engineering
We analyse each requirement and develop technically sound, feasible solutions tailored to the project’s conditions.
02. Delivery
We coordinate the technical, industrial and human resources needed to turn each solution into reality.
03. Ongoing support
We maintain close relationships with our clients, providing advice and support according to the needs of each installation.
Experience proven in the field.
Our track record spans projects of different scales, sectors and countries. From water-treatment facilities and energy-efficiency systems to filtration media supplied for major infrastructure, each project gives us an opportunity to apply our expertise and keep improving.
Reverse osmosis for a tourist facility on the Catalan coast, with energy recovery.
Photovoltaic installation on industrial rooftops and carports for a company in Gran Canaria.
Granular activated carbon for drinking-water treatment at Laguna Lake, Philippines, in a 150,000 m³/day facility.
Growing with a positive impact.
We believe business growth must go hand in hand with responsibility. Our work involves essential resources such as water and energy, so we seek solutions that contribute to using both more efficiently.
This commitment also shapes how we manage our company, work with other organisations and improve our processes. Quality, transparency and responsibility are central to how we see the future of KEIKEN Group.
CORPORATE RESPONSIBILITY
CERTIFIED B CORPORATION
Recognition of our commitment to social and environmental responsibility, transparency and continuous improvement.
QUALITY MANAGEMENT
ISO 9001:2015
A certified management system that helps us improve processes, organise resources and maintain consistent quality standards.
INDUSTRY COLLABORATION
Catalan Water Partnership
A network advancing innovation and cooperation in the water sector.
Clúster Marítimo-Marino de Andalucía
An organisation promoting innovation and collaboration in Andalusia’s blue economy.
PRODUCT ASSURANCE
Your next project could start here.
If you are looking for an experienced technical team with strong delivery capabilities and a collaborative approach, we would be delighted to hear about your project.