About us

The leading water & wastewater operations & maintenance company in the UAE


A leading company in waste-water services in the UAE.

Moalajah is a leading company providing water and waste-water services to its clients in UAE. Our performance-based approach on operations and maintenance, commitment to international standards and best industry practices ensure that our customers achieve their financial, operational and environmental targets.

With large number of highly trained and multi-skilled employees, a fleet of performant specialized vehicles and specific tools and equipment, Moalajah serves a wide portfolio of clients in the public, residential, commercial and industrial sectors across the Emirates.

200000 m3/day into treated sewage effluent

100pumping stations (sewage & irrigation)

13Sewage Treatment Plants across the UAE

What makes us different?

We protect the interests of our clients with a pro-active attitude and a long - term vision of assets life-cycle management. This is achieved by:

  • Quick action in case of emergencies: mobilization of existing stand-by staff and equipment (eg: mobile intervention team, available 24/7 on-call basis);
  • Technical expertise and preventive approach: Moalajah does not have a “run to failure” policy. We carry out detailed asset condition surveys to assess the existing technical state of equipment and identify potential failure/non-conformity risks. This step is followed by the implementation of an asset management and capital renewal plan approach (Moalajah is one of the few companies in the field that is ISO 55001 and OHSAS 18001 certified) that minimizes the risk of major equipment breakdown events (that can disrupt our Client’s core business);
  • We continuously look for ways to optimize the operational expenditures of our Clients by employing rigorous cost-benefit analysis on various technical solutions that could be implemented on-site.


Your dedicated waste-water services partner

Our comprehensive performance-based services approach is designed to meet the challenges faced by our customers across private and public sectors, while our clients can focus all their energy on their core business. 

As a joint venture between leading international environmental management company, Veolia and the Belgian construction group, Besix, our company capitalizes on the expertise of its shareholders to deliver (in-house capabilities) a wide range of end-to end waste water services solutions



Besix Logo


BESIX Group is a leading multidisciplinary company operating in the construction, real estate, concessions, and assets sectors. With over 110 years of expertise, BESIX has established a strong reputation for delivering high-quality projects worldwide. The group is committed to innovation, sustainability, and creating value for its stakeholders while contributing to societal progress.BESIX Contracting specializes in construction, infrastructure and marine works, often in contracts with a high level of complexity. Finding smart, cost-effective and sustainable answers to water and energy challenges is BESIX Environment’s ultimate goal.




The Veolia group aims to become the benchmark company for ecological transformation. Present on five continents with nearly 218,000 employees, the Group designs and deploys useful and concrete solutions for water, waste and energy management that contribute to radically changing the situation. Through its three complementary activities, Veolia helps to develop access to resources, preserve available resources and renew them. In 2023, the Veolia group served 113 million people with drinking water and 103 million with sanitation, produced 42 terawatt hours of energy and recovered 63 million tons of waste.