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Innovation at our core

At Marais NZ, innovation isn't just a buzzword—it's woven into the very fabric of our identity, a legacy we proudly share with Tesmec Group. Since the 1960s, we have been at the forefront of trencher technology, constantly redefining industry standards.


Who we are
Our team


Invented in the 60's by the founder of the group Marais, mechanical laying transformed network installation by combining trenching and deployment. This method utilises a laying box to guide pipes or cables into the trench while maintaining the correct curvature.

The benefits are substantial:

  • cuts deployment costs by up to 40%,

  • speeds up the process (400m/day in hard soil to 2500m/day in soft soil),

  • simplifies operations, leading to quicker network activation and revenue generation.

  • reduces the need for on-site personnel

  • minimises the environmental impact by lowering the volume of materials needed for backfilling

  • enhances safety as workers no longer need to enter trenches.


This quality-focused approach ensures precise positioning of cables or pipes, sand beds, and warning grids, making it a superior solution for modern infrastructure needs.


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Our ground penetrating radar technology, developed by Tesmec, detects underground utilities before trenching., significantly enhancing work site safety and operational efficiency.


This technology helps avoid costly and dangerous disruptions by accurately locating existing underground infrastructure.


The advanced Easy Pipe Tracking (EPT) feature ensures precise positioning and depth measurement, streamlining the trenching process. Recognized for its excellence, this technology received the prestigious 2017 IATT AWARD, standing out among ground-penetrating radar systems for its accuracy and innovation.

Safety first


TrenchTronic 5.0, developed by Tesmec, is a cutting-edge control system enhancing trenching and surface mining operations. Designed to simplify use and boost efficiency, it leverages advanced features to minimise operator dependency.


The system enables precise, faster, and more efficient trenching, transforming operational capabilities. With intuitive interfaces and real-time monitoring, TrenchTronic 5.0 ensures optimal machine performance and reliability, revolutionizing the industry's approach to trenching technology.

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Re.M delivers real-time insights for trenchers and surface miners via a remote monitoring platform. It tracks machine position, performance, and productivity, ensuring continuous oversight and enhanced efficiency for trenching operations.

This technology keeps a vigilant eye on the fleet 24/7, streamlining operational management.

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