Nafal & Circle

Our Solutions

Innovative solutions for sustainable performance.

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Sewage Treatment Plant

Efficient sewage management for a cleaner future.

Effluent Treatment Plant

Advanced industrial wastewater treatment solutions.

Produceed Water Treatment Plant

Optimizing water recovery in the energy sector.

Desalination (RO) Plant

Unlocking the ocean’s potential.

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Ultra Filtration (UF) Plant

High-Precision filtration for superior water quality.

Water / Raw Water Treatment Plant

Transforming raw water into safe and usable resources.

Recycle and Reuse Plant

Driving sustainable water circularity.

Bio Methanation Plant

Converting organic waste into renewable energy.

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Special Purpose / Package Plant

Compact treatment solutions engineered for flexibility.

Conventional & Traditional plant

Proven treatment technologies with reliable performance.

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Sludge Management

Efficient handling for sustainable waste treatment.

Odour Control Unit

Creating cleaner and healthier treatment environments.

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Pumping Station & Lifting Station

Reliable flow management for water infrastructure.

Water & Wastewater Network

Building stronger infrastructure for water distribution.

Our Technology

Innovative solutions delivered by our world-class technical team

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Membrane Bioreactor

Compact footprint. superior effluent quality.

Zero Liquid Discharge

Close the Loop. Discharge Nothing.

Biological Nutrient Removal

Meeting the strictest discharge standards.

Anaerobic Digestion

Turn waste into energy.

Process Water Solutions

Turning wastewater into a valuable resource

High Recovery Reverse Osmosis

Maximum recovery. minimum reject

Desalination

Unlocking the ocean’s potential.

Complex Treatment Systems

Custom solutions for the most challenging conditions.

Moving Bed Bio Reactor

Advanced biological treatment with high efficiency.

Activated Sludge Process

Reliable wastewater treatment through biological excellence.

Integrated Fixed-film Activated Sludge

Enhanced treatment performance with integrated technology.

Sequencing Batch Reactor

Smart batch treatment for modern wastewater management.

REED Bed

Natural wastewater treatment inspired by ecology.

A2O Process

Comprehensive nutrient removal for cleaner water.

About
the Joint Venture

NCI is a joint venture established to deliver integrated, world-class water and wastewater treatment solutions across the Sultanate of Oman, the wider GCC region, and international markets.

The company combines the engineering and contracting expertise of NAFAL LLC – one of Oman’s most established and respected multi-service contractors – with the advanced process technology, AI-driven analytics, and global knowledge platform of Circle H2O LLC, a pioneering water and wastewater technology company based in the United States.

Years of Combined Infrastructure Experience

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Skilled Professionals

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Active Project Sites

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Countries Across The Globe

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Presence across GCC and
Global Markets

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ISO 9001 & ISO 14001 Certified

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What Services We Offer

Comprehensive support, from concept to commissioning and beyond

Artificial Intelligence

Data-Driven Decisions. Smarter Operations.

Knowledge Support

Expert Guidance at Every Stage of Your Project

Automation

Intelligent Control. Remote Visibility. Real-Time Insight

Operation & Maintenance

Keeping Your Plant Running at Peak Performance.

Critical Maintenance

Protecting Your Most Vital Assets.

Consultancy & Training

Building Capability. Empowering Teams.

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Clients Reviews

Delivering intelligent engineering, automation, maintenance, and technical support services tailored for modern industrial and infrastructure needs.

Nishant Joshi

Their ETP and recycle & reuse plant helped us improve operational efficiency and reduce water wastage significantly. The engineering team understood our requirements well and provided a customized solution that suited our industry needs. Installation and testing were completed without delays, and the after-sales support has been reliable

Saeed Al Marri

We approached them for a complete water treatment solution including UF and RO systems for our industrial facility. From design to installation, the entire process was handled professionally. The team maintained clear communication, delivered on time, and ensured smooth commissioning. The system performance has been excellent, and we are satisfied with the quality of work and ongoing support.