Trees From Above
City Workers Sewer

About us

Making a Difference in Water and Sanitation

There is nothing more essential to life on Earth than water. It is the basis for our wellbeing, for the development of our countries and the happiness of every family.

Unfortunately, we are facing a global water crisis. People in numerous countries are struggling to access the quantity and quality of water they need for drinking, cooking, personal hygiene, producing their goods and irrigating their fields. And this is where we are coming in with innovative, affordable and tailor-made solutions based on the Water-Energy-Nexus Approach which we deem necessary to design future, inherently interlinked systems from the starting point of planning in a holistic manner.


We are translating the nexus approach into

  • innovative urban drainage and stormwater management systems,

  • decentralized, energy efficient water supply and wastewater treatment solutions,

  • innovative treatment of wastewater for making it fit for agricultural reuse,

  • the consequent use of nature-based solutions for creating Green Infrastructures, “Sponge Cities” and livable urban centres.


Our experts have been working in numerous countries and have been dealing with all kinds of water-related problems.


We are a 100% foreign owned company established under Vietnamese law and working in the fields of water and sanitation. The company is a commercial spin-off from the international NGO “Water Solutions International e.V.” (WSI).


We provide solutions to environmental and water-related problems

The successful delivery of complex water and sanitation projects over the last years stands proof for our broad experience and competences in technical, institutional and organisational consultancy.

Our services are provided by an international team of engineers, technicians, economists, sociologists and scientists with hands-on expertise in helping you align technology needs with development and business goals. Our experienced project managers can assure a smooth implementation of the agreed tasks.


Our consultancy services cover:

• Urban Stormwater Management / Green Infrastructure

• Decentralized wastewater treatment and sustainable sanitation

• Integrated water resources management and river rehabilitation

• Emergency measures (water related solutions for refugee camps)

• Up-scaling of access to water and sanitation services

• O&M, Training, Benchmarking, Due Diligence

• Organizational development

• Monitoring & Evaluation (M&E)

• IEC / Community development / Public awareness / Behavior change communication

• Development of Private Sector Participation (PSP) models for public service delivery

• Development of sustainable pro-poor interventions

• Business planning and development for private and public entities

• Public utility development

We offer support and expertise to help the water industry to develop and implement new innovative methods and models that will generate new ideas and realize these into successful products which subsequently improve the water sector.
Our experts have successfully been devloping and testing solutions on decentralised wastewater treatment, stormwater management and CO2 capture.

Environmental Worker

Technical Solutions in Water and Sanitation

We assist our clients and partners in identifying those water and sanitation technologies best suited to their different water-related contexts and problems that exist within their area of responsibility. Together we carry out participatory planning processes and define a set of criteria to assist in characterizing each area of intervention to be in a position to identify the most appropriate technical solutions.

We accompany our clients through the entire project cycle by providing services such as design, tendering, construction supervision and operation and maintenance.


Training and
Capacity Building

We believe that individuals can only apply their capabilities if a favorable enabling environment is guaranteed. Our approach to capacity building therefore targets individuals, organizations and institutions alike. Our experts love to share and are experts in transferring knowledge and facilitating change to create the structures, incentives, regulations and financial mechanisms required for sustainability of infrastructure and services.
We have learned that capacity building cannot be narrowed down to trainings and workshops alone. Our approach to  Capacity Building applies a range of  modules such as twinning, pilot and demonstration projects, coaching, study tours, conferences and seminars, on-the-job-trainings and train-the-trainer, knowledge management and many more tailor-made solutions for strengthening the water sector.

Working with Communities

Our experts are used to include feedback and concerns from grass-root levels in their daily work, in order to make a difference in water and sanitation on local levels.

Community development in water and sanitation is a process whereby those who are marginalised and excluded from decision-making are enabled to gain self confidence and to join with others. They are encouraged to participate in actions to improve their living conditions and to tackle the water or environmental-related problems that face their community.


Our community work is concerned with the development and empowerment of communities through facilitating the active participation of people in addressing issues that affect them collectively. It can be done in a variety of contexts: in neighborhoods, with specific groups (eg women’s associations, youth organisations), with partnership groups, NGOs, local authorities and state agencies.


Our community experts usually work in teams and liaise closely with local authorities and agencies. They represent the voices and needs of target groups and disadvantaged communities to policy makers at local and national level.




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