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At a glance

BIO-4 is an international provider of innovative waste water solutions based on the award winning BIOCOS® technology. Our passion is the construction of customized wastewater treatment plants of all sizes. We also offer a full range of complimentary products and services.

With our technology and product spectrum, we cover a wide range of applications of our customers in the public as well as in the private sector.

With our expertise and experience, we can handle any issue pertaining to wastewater treatment, whether related to a new or to an existing installation.

Our core Activities and Services are:

  Erection of wastewater treatment plants including rebuilding
rrof “old” plants of any kind and plant enlargement

  Maintenance and service for wastewater treatment plants

  Operation of wastewater treatment plants (when built by BIO-4)

  Financing of infrastructure projects for wastewater treatment

  Consulting and engineering in the area of wastewater treatment

Since our inception we have repeatedly demonstrated through installations in Europe, Africa and Latin America that our solutions are right on the customers' requirements and persistently deliver high quality purification results at the lowest life-cycle costs.

Thanks to our leading technology and our capabilities, we can be the partner of choice for waste water projects in developed countries with very high standards for wastewater treatment as well as in developing countries with lower capital availability and a shortage of a highly technically trained workforce.

Our Business Principles/Values
guide our activities and are the basis for all relationships we build. We believe in:







for everything we do

Customer focus

meaning attention, responsiveness, integrity, quality and flexibility

Performance & Reliability

referring to all aspects of delivery and interaction

People & Teamwork

are at the heart of our business


thinking forward and striving to create innovations

Social Responsibility

act responsibly and consider the impact of our actions

Environmental Responsibility

engage in business practices that conserve/protect natural resources







We serve our customers by finding the right solution for their specific problems and requirements, whether they are related to small or large waste water projects.

We strive to provide our clients with the lowest lifecycle costs, the highest reliability and the most responsive service.



We seek to obtain our customers' trust by committing to long-term partnerships for maintenance, operation or as a full service concessionaire.

We provide SMART WATER SOLUTIONS that generate sustainable value for our clients from their investment.




Contact Us

If you are interested to
learn more about what we can do for you, please get in contact with us and we will put you in touch with one of our experts.

Just send us an email at:
info@bio-4.com or use the Feedback Form to submit us your request.



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