Mayfield Industries

What Mayfield Industries does

Mayfield Industries Pty Ltd is an Australian manufacturer of critical electrical infrastructure, founded in 1936 as F.R. Mayfield Pty Ltd and wholly owned by Mayfield Group Holdings Ltd (MGH). The company designs, fabricates, assembles, installs, switches, tests, commissions, and maintains low-voltage, medium-voltage and high-voltage switchgear and related infrastructure for mining, power generation and transmission, renewable energy, oil and gas, infrastructure, heavy industry, minerals and metals processing, and water and waste water customers. It operates from three Australian offices — Edinburgh (South Australia), Henderson (Western Australia) and Brisbane/Underwood (Queensland) — with two manufacturing facilities totaling approximately 34,400m2 of site footprint and over 10,800m2 of undercover production space, supported by 170+ multi-disciplinary staff.

The core product portfolio centers on the proprietary Moducell demountable LV switchboard (Australian-made, type-tested to AS/NZS 61439, with IP66-rated configurations and fault level withstand up to 100kA) and the licensed Okken fully withdrawable switchboard (from Schneider Electric, up to 6300A and 150kA). This is complemented by transportable switchrooms (cyclone/blast/ballistic options, pre-commissioned delivery), MV switchboards up to 33kV (via the Leistung Energie channel partnership, combined with transformers up to 30MVA), kiosk substations, custom switchboards, data centre solutions (PDUs, PTUs, skid-mount), and Walker Control secondary protection systems. The Group structure also delivers switching, testing and maintenance services through sister company Mayfield Services, with 24/7 breakdown response and renewable balance-of-plant support.

Mayfield makes money through project-based hardware sales and recurring professional services, delivered via an enterprise field sales motion targeting large resource and infrastructure operators such as BHP, Rio Tinto, Fortescue, APA Group, TransGrid, Alinta Energy, Santos, Lockheed Martin and Downer. Pricing is not publicly disclosed and engagements are tender-driven; revenue is complemented by ongoing maintenance term contracts and 24/7 breakdown response. The company reports 2,000+ completed projects and 80+ years of operating history, with national delivery coverage including remote mining regions such as the Pilbara.

Name

Mayfield Industries

Legal name

Mayfield Industries Pty Ltd

Website

https://mayfieldindustries.com.au

Company type

Private

Founded year

1936

Operating status

Operating

Ownership category

akta.pro rank

Product category

Electrical Infrastructure Manufacturing

NAICS

Switchgear and Switchboard Apparatus Manufacturing (335313), Electrical Equipment Manufacturing (3353), Relay and Industrial Control Manufacturing (335314), Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513)

SIC

Switchgear & Switchboard Apparatus (3613), Electrical Industrial Apparatus (3620), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Switchgear & Switchboards (HV/MV/LV, GIS/AIS) (IMAGAAAB)

akta.pro secondary industries

Low-Voltage Switchboards & Panelboards (LV distribution panels, MCCs, switchboards) (IMAGAEAA), Industrial Control Cabinets & Power Distribution (Panels, Switchgear for Automation) (IMAHAHAK), Circuit Breakers, Disconnectors, Earthing Switches & Switchgear Components (EUADACAH)

Keywords

• Low voltage switchboards
• Medium voltage switchgear
• Transportable switchrooms
• Secondary protection systems
• Electrical infrastructure manufacturing

Headquarters

HQ city

Brisbane

HQ country

Australia

HQ region

Oceania

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Switchboard Manufacturing & Sales: Design, manufacture and supply of electrical switchboards including transportable switchrooms, MV switch boards, Moducell demountable switchboards, Okken fully withdrawable switchboards, custom switchboards, PLC/Marshalling panels, and kiosk substations. Project-based revenue with design, fabrication, assembly, installation, switching, testing & commissioning, and maintenance services.
2. Services (Switching, Testing, Maintenance): Switching services for HV, MV and LV infrastructure. Testing services including primary plant and secondary systems. 24/7 emergency breakdown response and ongoing monitoring and maintenance. Services provided as individual services or on term contracts.

Go-to-market motion1 record

Distribution channels1 record

Core offering

Mayfield Industries designs, manufactures, and supplies critical electrical infrastructure products including LV and MV switchboards, transportable switchrooms, kiosk substations, protection systems, and PLC/marshalling panels for industrial and utility customers. The company also provides switching, testing & commissioning, maintenance, and switchboard upgrade services delivered through in-house project management, design, fabrication, assembly, installation, and 24/7 breakdown response capabilities.

Product overview

Mayfield Industries is an Australian manufacturer of critical electrical infrastructure, offering a portfolio of proprietary and licensed switchboard products alongside comprehensive engineering services. The core product portfolio includes the proprietary Moducell demountable LV switchboard and the licensed Okken fully withdrawable switchboard (Schneider Electric), complemented by custom switchboards, MV switch boards (via Leistung Energie partnership), transportable switchrooms, kiosk substations, data centre solutions, protection systems, and PLC/marshalling panels. These products are delivered alongside switching, testing, commissioning, and maintenance services, providing turnkey solutions from design through to ongoing support across mining, infrastructure, power generation, renewable energy, and industrial sectors.

Differentiator

Problem solved

Functional benefit

Brands

• Moducell: Australian-made demountable and modular low voltage switchboard technology with verification testing for safety in operation. Modular design provides flexibility with extensive range of tier types configured as single or double-sided and indoor or outdoor (IP66).
• Okken
• Walker Control

Products and services

• Transportable Switchrooms Integrated, turn-key custom-built transportable switchrooms designed to create a protective environment for sensitive switchgear, featuring single and multi-module builds, cyclone/blast/ballistic solutions, fire-rated construction, HVAC systems, and complete switchgear fitout delivered pre-commissioned. Targeted at mining, infrastructure, and remote site operators.
• MV Switch Boards Medium voltage switchboards suitable up to 33kV, available as air-insulated, metal-clad withdrawable (AMS), gas-insulated fixed type (DQC, GIM), and ring main units (Enerswit+), combined with distribution transformers up to 30MVA. Targeted at utilities, renewable energy developers, and industrial customers.
• Moducell Demountable Switchboards Proprietary Australian-made modular, demountable LV switchboard verified to AS/NZS 61439, offering IP42/IP54/IP66 ratings, single or double-sided configurations, rated up to 5000A and 100kA fault level, with internal arc fault protection up to 80kA. Targeted at industrial, mining, and infrastructure customers.
• Okken Fully Withdrawable Switchboards Licensed from Schneider Electric, a modular fully withdrawable switchboard solution enabling individual module withdrawal without isolating the entire switchboard. Rated up to 6300A, 690VAC, 150kA fault level, with internal arc fault protection up to 100kA. Targeted at customers requiring maximum operational uptime.
• Custom Switchboards Bespoke switchboards manufactured in-house to suit critical requirements where space, environment, or budget are key drivers. Available in Zincanneal, galvanized steel, or stainless steel construction with ingress protection up to IP66 and solutions for 50°C ambient environments. Targeted at customers with specialised electrical infrastructure needs.
• Kiosk Substations Turnkey packaged substations with proven designs preventing wind-driven water ingress and dust entry. Incorporate MV switchgear (RMU and transformer), LV switchboards, natural or mechanical ventilation, with all equipment installed and tested before factory dispatch. Targeted at utilities and renewable energy customers.
• Data Centre Solutions High current switchboards, power distribution units (PDUs), powertrain units (PTUs), catcher switchboards, skid mount solutions, MV switchboards, kiosks, and modular data centres for critical infrastructure with short lead times and local manufacturing. Targeted at mining, enterprise, and infrastructure customers such as BHP's Gudai-Darri Iron Ore Mine Data Centre.
• Secondary Protection Systems Secondary Protection, Monitoring, and Control panels for medium and high voltage assets including transmission/distribution feeders and transformers, busbars, circuit breakers, capacitor banks, X/Y protection panels, SCADA and communication panels, CT/VT marshalling panels, and metering panels. Targeted at utilities, transmission operators, and large industrial customers.
• PLC/Marshalling Panels Custom or proprietary enclosures incorporating PLC and marshalling functionality including custom control panels, PLC panels, enclosed isolator panels, marshalling cubicles, local control stations, and junction boxes. Targeted at industrial automation and process control customers.
• Switching Services Nationally accredited switching services for HV, MV and LV infrastructure, including operating authority (HVOA), switching operator or recipient in charge roles, and switching sheet preparation and checking. Targeted at utilities, mining, and large infrastructure operators.
• Testing & Commissioning Services Primary plant services including circuit breaker timing tests, current/voltage transformer testing, transformer tests, insulation quality assessment (Tan Delta), primary current injection testing up to 800A AC, and secondary system protection relay testing using Omicron equipment. Targeted at utilities, mining, and infrastructure operators.
• Maintenance Services 24/7 emergency breakdown response and ongoing maintenance for HV, MV and LV infrastructure, including renewables balance of plant maintenance, specialist testing, MV cable jointing and termination, transformer maintenance, and thermographic inspections. Targeted at operators of critical electrical infrastructure.
• Switchboard Upgrades LV switchboard module and tier upgrades or additions (Moducell and Okken), MV switchboard replacements or extensions, and LV switchboard arc flash assessments for increased operator safety. Targeted at operators of brownfield switchboard installations.

Quantifiable outcome

• 53m transportable switchroom delivered in less than 3 months - switchgear installed, cabled and pre-commissioned before delivery
• +3 more outcomes

Named customers27 records

Segments8 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Five partnerships are on record, tiered core.

• Schneider ElectriccoreOEM/ Whitelabel/ Licensing PartnerLicensed manufacturer of Okken fully withdrawable switchboards. Okken is a modular, fully withdrawable switchboard solution licensed from and 100% supported by Schneider Electric worldwide network. Provides reliability solution with fully withdrawable module design.
• Leistung EnergiecoreChannel Partner/ Reseller/ DistributorChannel partner for sales and servicing of MV products and components. Mayfield is Leistung Energie channel partner providing AMS, DQC, GIM, Enerswit and RMU Range MV switchgear solutions.
• Mayfield ServicescoreStrategic or Co-development PartnerSister company within Mayfield Group Holdings. Switching, testing and maintenance services for HV, MV and LV critical electrical infrastructure. Partners with Mayfield Industries on complex challenges to deliver unique client value.
• ATI AustraliacoreStrategic or Co-development PartnerSister company within Mayfield Group Holdings. Specialist provider of wireless telecommunications and critical power products and services. Complementary product offerings make them partners with Mayfield Industries.
• Walker ControlcoreStrategic or Co-development PartnerWalker Control Secondary Protection and Control panels for medium and high voltage systems. Part of Mayfield Group. Brand name for protection systems product line.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Legrand Australia: Global electrical equipment group with significant Australian operations in switchboards, distribution boards and electrical infrastructure — adjacent competitor in commercial and industrial segments.
• Schneider Electric (Australia): Global switchgear and electrical equipment leader; directly comparable product portfolio (including the Okken line which Mayfield licenses) and serves the same mining, energy and infrastructure customers across Australia.
• Siemens Australia: Supplies MV switchgear, protection panels and kiosk substations into Australian utilities, mining and infrastructure — overlapping with Mayfield's offering and target customer base.
• Eaton (Australia): Global power management manufacturer offering switchboards, motor control and protection solutions that overlap directly with Mayfield's product range across industrial and mining customers.
• ABB Australia: Supplies MV/LV switchgear, protection systems, and kiosk substations into the same mining, utility and infrastructure segments; competes with Mayfield as both an OEM supplier and project solutions provider.

Direct peers

• Nilsen (Nilsen Electric): Long-established Australian electrical contractor and switchboard manufacturer with national operations serving mining, utilities and industrial clients — directly comparable footprint and customer mix.
• B&R Enclosures: Australian manufacturer of electrical enclosures, switchboards and kiosk substations; similar product mix and end markets with overlapping mining, infrastructure and utility customers.
• NHP (NHP Electrical Engineering): Australian-owned electrical solutions provider distributing and assembling switchgear, motor control and protection products from Terasaki, Moeller and others — direct peer in industrial and mining channels.

Regional players

• Wilson Transformer Company: Australian manufacturer of power and distribution transformers up to 750MVA; complementary in Mayfield's kiosk substation offerings and serves overlapping utility and mining customers.
• Ampcontrol: Australian manufacturer of electrical and electronic equipment for mining, infrastructure and energy — produces switchboards, protection systems and transportable substations comparable to Mayfield's portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Mayfield Industries