Our Companies

Passionate about electrical and telecommunications infrastructure

Mayfield Group Holdings

MGH is a South Australian company that’s passionate about providing electrical and telecommunications solutions to clients across our nation’s electrical power infrastructure.

As a Group we are a portfolio of niche businesses, each offering a strong value proposition for owners and operators of electrical and communications infrastructure.

As a holding company, we are the commercial, financial and shared service strength behind each of our businesses.

Mayfield Industries

Mayfield Industries is one of Australia’s foremost producers of customised switchboards, kiosks and transportable switchrooms for critical electrical infrastructure where safety and performance are key requirements.  

With innovation and client collaboration at the heart of the business, Mayfield Industries prioritises project management, engineering, design, manufacture, installation and commissioning.


Mayfield Services

Mayfield Services delivers high, medium and low voltage infrastructure services for a diverse range of clients across Australia

Offering capability across testing, maintenance and asset replacement services, Mayfield Services teams are well placed to handle a broad range of infrastructure-critical briefs


Walker Control

Walker Control is one of Australia’s leading manufacturers of MV and HV secondary protection systems, control panels and monitoring solutions for electrical power infrastructure across Australia.

The company has built its reputation for excellence in helping to safeguard the stability and reliability of the nation’s critical electrical network. It continues to grow strong client relationships through the quality of its products and services.


Power Parameters

Power Parameters is a leading provider of products and services for clients who have critical power quality requirements.

Headquartered in Melbourne the business has an established reputation for delivering client-centric solutions including:

  • Testing and measuring instrumentation,
  • UPS and battery products, and
  • Maintenance and Calibration services.


ATI is a specialist provider of communications infrastructure solutions for a broad spectrum of project requirements across a wide range of sectors. The business’s expert engineering team possesses in-depth experience and expertise in designing and deploying robust networks for clients nationally and internationally. 
ATI’s comprehensive capabilities include system design, site build, equipment supply, the installation of monopoles, towers, antennas and masts, network commissioning, project management, and onsite maintenance support.