About us / The group

The operating companies within the Group include:

 



Petrie Technologies Ltd - are leaders in the provision of dielectric heating solutions - Radio Frequency and Microwave - for a variety of industries throughout the world. Principal markets served are Food producers and the Medical industry.

 

NIS Ltd - a specialist integrated engineering company providing bespoke design and manufacture of plant and equipment by the transfer of technology across a wide range of markets.
www.nisltd.com

NIS (China) Ltd - a subsidiary of NIS Limited. NIS (China) Limited provides an operating base within mainland China to both import and export integrated engineering and manufacture of plant and equipment where appropriate.
www.nisltd.com.cn

 

NSG Environmental Ltd - has been providing Decommissioning and Waste Management Services to the United Kingdom civil and defence nuclear installations for more than 20 years. In this time we have gained a unique understanding of radioactive waste management and decommissioning from working on many challenging contracts. Our core skills are in the management and delivery of decommissioning and waste management solutions utilising a combination of personnel from our two business areas. These business areas are Technical Services ans Site Services.
www.nsgltd.com

Hold Engineering Ltd - with premises on, and near to, the Sellafield Site in West Cumbria, Hold Engineering Ltd offer professional engineering services to a broad range of clients across the nuclear industry.

Hold engineering provide expertise in fabrication, installation and site services.

With Safety and Quality paramount, and all activities supported by skilled project management teams, Hold Engineering can meet the demands of complex nuclear challenges.


The Operating Companies are owned by a parent company NIS Holdings Ltd. Each company operates independently however there is synergy through technology, markets and values thus there is intercompany trading where there is added value to be gained for our client.

Technologies applied by the Group include:

  • Design and Control Systems

  • Fabrication, Welding and Machining

  • Automation, Robotics, Mechanical Handling

  • Motion Systems and Cargo screening

  • Microwave and Radio Frequency product heating

  • Infra-Red and Induction product heating

  • Conventional product heating

  • Nuclear Decommissioning and Decontamination

  • Legacy management

  

Markets served by the Group Companies:

  • Aerospace

  • Food

  • Industrial

  • Materials research

  • Medical

  • Nuclear Legacy Management and New Build

  • Pharmaceutical

  • Security

  • Tobacco