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Who We Work With Globally

Who We Work With

At Northern HV we are proud to work with some of the most respected organisations across the electrical, engineering and infrastructure sectors. Our clients trust us to deliver safe, compliant and technically robust solutions on critical HV and LV projects.

We support clients across renewables, utilities, infrastructure, oil and gas, construction, data centres and private networks, operating throughout the UK and internationally.

Trusted by Leading Names in Electrical and Infrastructure Engineering

Clients We Work With

We currently support a wide range of major organisations, including:

  • Hitachi
  • Siemens
  • Eaton
  • Hyosung
  • SGB
  • Vattenfall
  • Nissan UK 
  • GE Verona

These clients rely on Northern HV for services including HV and LV installation, commissioning, SAP support, maintenance, fault response and full project delivery.

HV and LV

Building Long Term Client Relationships

Our client relationships are built on trust, performance and consistency. We take a proactive and reactive approach to every project, adapting quickly to changing requirements while maintaining strict safety and quality standards.

Northern HV is trusted to work on complex and safety critical electrical systems, often supporting repeat projects and long-term programmes where reliability and competence are essential.

We work internationally

Supporting Projects Across the UK and Internationally

Northern HV delivers projects across the UK and overseas, with current major works in the UK and Scandinavia. Our experience operating in different regulatory and operational environments allows us to support international projects with confidence and consistency.

Whether working on transformer builds, substations, switchgear installations or renewable energy schemes, our focus remains the same. Safe delivery, clear communication and high-quality results.

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Why Clients Choose Northern HV

Clients choose Northern HV because we combine technical expertise with a personal, hands-on approach. We understand the pressures of live electrical environments and critical infrastructure projects and respond with discipline, integrity and professionalism.

Our ISO accredited management systems, SSIP certification and NERS accreditation provide clients with confidence that safety, quality, compliance and electrical network standards are embedded into every aspect of our work.

Frequently Asked Questions

Here, we aim to provide you with comprehensive information addressing the most common inquiries related to high voltage electrical commissioning. Whether you're seeking to understand the importance of commissioning, its benefits, or the process involved, our FAQ section offers detailed answers to frequently asked questions. Explore below to gain insights into the critical aspects of ensuring the safety, reliability, and optimal performance of high voltage electrical systems.