What Trafo Elettro does

Trafo Elettro S.r.l. is a privately held Italian power transformer manufacturer founded in 1969 in Montecchio Maggiore (Vicenza) and operating as a wholly owned subsidiary of RS Holding srl. The company designs and builds custom power transformers for utilities, industrial operators, transportation infrastructure (airports, metros, railways), mining, metallurgy, renewable energy (wind, solar, hydro), healthcare, and commercial real estate projects, with delivered units operating in more than 90 countries.

The product portfolio spans three core technology lines: cast resin dry-type transformers (range up to 30 MVA, insulation class up to 52 kV, BIL 250 kV, with E3/C2 environmental and climatic ratings and F1 self-extinguishing fire behavior), oil-immersed transformers (range up to 50 MVA, insulation class up to 145 kV, BIL 650 kV, in hermetically sealed or conservator configurations), and amorphous core transformers (range up to 5 MVA) that reduce no-load losses by up to 70% versus standard units. A Special Units division supplies reactors, autotransformers, earthing transformers, furnace transformers, converter transformers (6–12–18–24 pulse), excitation transformers, and rectifier units, and a small stock of ready-to-ship units supports urgent demand. Manufacturing is concentrated at two Italian plants — the Montecchio Maggiore headquarters and a Tezze di Arzignano facility — with a newly commissioned large-scale line that has produced a 90 MVA, 138/34.5 kV unit with OLTC for a Central American substation.

The business model is project-based, custom engineering-led enterprise sales. Revenue is generated primarily through hardware sales of bespoke transformers priced per project (no public list pricing) plus aftermarket services — on-site commissioning, training, maintenance, spare parts, rental, and storage. Distribution combines direct field sales to utilities, EPCs, and asset owners with a network of in-country channel partners for delivery and service (e.g., South Africa partner for the BMW Tshwane plant). The company is ISO 9001, ISO 14001, and ISO 45001 certified, holds two Environmental Product Declarations issued in 2025, and maintains active presence at Hannover Messe, Light+Building, KEY Energy, Intersolar, Middle East Energy, and Data Centre World.

Name

Trafo Elettro

Legal name

Trafo Elettro S.r.l.

Website

https://trafoelettro.com

Company type

Private

Founded year

1969

Operating status

Operating

Headcount range

11–50 employees

Short description

Trafo Elettro S.r.l. is an Italian manufacturer of custom power transformers — cast resin, oil-immersed, and amorphous core units ranging from kVA to 90 MVA — serving utilities, industrial operators, transportation infrastructure, mining, and renewable energy projects across 90+ countries.

Ownership category

akta.pro rank

Product category

Power Transformers

NAICS

Power, Distribution, and Specialty Transformer Manufacturing (335311), Electrical Equipment Manufacturing (33531)

SIC

Power, Distribution & Specialty Transformers (3612), Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Transformers (Power, Distribution, Instrument, Specialty) (IMAGAAAA)

akta.pro secondary industries

Reactive Power & Power Quality Equipment (Capacitor Banks, Reactors, STATCOM/SVC, Harmonic Filters) (IMAGAAAG), Transformer & Reactor Refurbishment / Replacement Programs (EUAEALAE), DER Connection Hardware & Interconnection Equipment (Transformers, Reclosers, PCC) (EUADALAL)

Keywords

• Power transformer manufacturing
• Cast resin transformers
• Oil immersed transformers
• Amorphous core transformers
• Custom electrical transformers

Headquarters

HQ city

Montecchio Maggiore

HQ country

Italy

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Transformer Sales: Custom power transformers sold to utilities, industrial facilities, and infrastructure projects globally. Products include cast resin, oil immersed, and amorphous transformers ranging from small kVA units to 90+ MVA large power transformers.
2. Special Units: Custom-designed transformers including dry type, reactors, autotransformers, earthing transformers, furnace transformers, converter transformers (6-12-18-24 pulse), excitation transformers, and rectifier transformers.
3. Aftermarket Services: Commissioning and training on site, maintenance services, spare parts supply, transformer hire/rental, and storage services.
4. Stock Transformers: Pre-built transformers available for quick delivery to meet urgent customer needs.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels7 records

Core offering

Trafo Elettro designs, manufactures, and supplies custom-engineered power transformers for utilities, industrial facilities, transportation infrastructure, and renewable-energy projects worldwide. Its product portfolio spans cast resin transformers (up to 30 MVA), oil-immersed transformers (up to 50 MVA and 90 MVA utility units), amorphous-core transformers (up to 5 MVA, up to 70% lower no-load losses), and special units (reactors, autotransformers, earthing, furnace, converter, excitation, rectifier transformers). The company complements hardware sales with commissioning, training, maintenance, spare parts, transformer hire, and storage services.

Product overview

Trafo Elettro is a power transformer manufacturer offering a comprehensive portfolio of transformer solutions. The core product lines include Cast Resin Transformers (dry-type, up to 30MVA), Oil Immersed Transformers (liquid-filled, up to 50MVA), and Amorphous Transformers (high-efficiency, up to 5MVA). The company also produces Special Units for specialized applications and maintains a stock of ready-to-ship transformers. The product range spans from small distribution transformers to large power transformers for industrial, renewable energy, transportation, and critical infrastructure applications.

Differentiator

Problem solved

Functional benefit

Products and services

• Cast Resin Transformers Dry-type power transformers with cast resin insulation for indoor and outdoor installations in highly polluted environments. Range up to 30 MVA, insulation class up to 52 kV, BIL 250 kV. Environmental class E3 (high pollution, humidity above 95%), climatic class C2 (operation, transport, and storage down to -25°C), fire behavior F1 self-extinguishing. Supplied to airports (Addis Ababa Bole, Tocumen, Barcelona El Prat, Palma de Mallorca, Astana), hospitals (Cleveland Clinic London), mining (El Teniente, Mae Moh), metallurgy (Tashkent), pulp and paper (Stora Enso), automotive (BMW Tshwane), chemicals (ALSACHIMIE), and commercial real estate (Prime Park Moscow).
• Oil Immersed Transformers Liquid-filled power transformers with oil cooling, designed for customized configurations in internal and external installations, including highly polluted environments. Range up to 50 MVA with insulation class up to 145 kV and BIL 650 kV. Available in hermetically sealed tank and conservator designs. Large-scale units up to 90 MVA (138/34.5 kV, Dyn11, OLTC) are produced for utility substation projects. Deployed in renewable energy (Parque Eolico Roden 10000/12000kVA wind farm, Albanian 25MVA hydroelectric project), pulp and paper (Stora Enso Oulu), and utility transmission.
• Amorphous Transformers Energy-efficient transformers using amorphous metal cores to reduce no-load losses by up to 70% compared to standard transformers, lowering energy expenses and CO2 emissions and extending insulation life due to reduced heat. Range up to 5 MVA, insulation class up to 52 kV, BIL 250 kV. The TES-ES series is designed for railway applications per EN 50329 duty class VI, with deployments including 12 amorphous 2750kVA units for Helsinki Underground.
• Special Units Custom transformer solutions for specialized applications, including dry type transformers, reactors, autotransformers, earthing transformers, furnace transformers, converter transformers (6-12-18-24 Pulse), excitation transformers, and rectifier transformers. Designed for industrial, power conversion, and process-specific requirements.
• Transformers in Stock Pre-built, ready-to-ship transformers available for rapid delivery to meet urgent power infrastructure needs. Maintained as an inventory service for customers requiring short lead times.
• Transformer Services Aftermarket service portfolio covering on-site commissioning and training, packing and impact recording, maintenance, spare parts supply, transformer hire/rental, and storage service. Supports installed units globally throughout their lifecycle.

Quantifiable outcome

• No-load losses reduced by up to 70% with amorphous transformers compared to standard (4900W to 1100W in Helsinki Metro project)
• +2 more outcomes

Named customers17 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• Local Partner (South Africa)coreChannel Partner/ Reseller/ DistributorLocal partner in South Africa for market access and project delivery. Achieved successful delivery of transformers to BMW automotive plant in Tshwane.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Hitachi Energy: Global leader in power and distribution transformers, grid integration, and HVDC. Competes with Trafo Elettro on large utility-scale oil-immersed and specialty transformers, but operates at vastly broader voltage classes and scale.
• Siemens Energy (Transformers): Major manufacturer of power and distribution transformers including the Trench product line. Direct overlap on large oil-immersed power transformers and railway traction transformers, with significantly larger scale and broader portfolio.
• Schneider Electric: Global electrical equipment major with a substantial transformer business (including legacy AREVA T&D assets). Competes in cast resin and oil-immersed distribution transformers for buildings, data centers, and infrastructure.
• Eaton Corporation: Power management company with a significant dry-type and cast resin transformer portfolio serving data centers, industrial, and utility customers. Closely aligned with Trafo Elettro on cast resin product family.
• GE Vernova (Grid Solutions): Offers large power transformers as part of its Grid Solutions business, serving utilities and renewables developers. Overlaps on large oil-immersed units and renewable integration applications.

Direct peers

• SGB-SMIT Group: European-headquartered specialist transformer manufacturer with comparable product breadth across power, distribution, cast resin, and special transformers. Similar profile as a privately held, mid-sized specialist competing against global incumbents.
• Trench Group: Specializes in power transformers and reactor products. Directly comparable in producing oil-immersed transformers and reactor-based specialty units, with overlapping utility customer base.
• Elsewedy Electric: Middle East- and Africa-focused transformer and electrical equipment manufacturer. Direct peer on cast resin and oil-immersed distribution transformers for utilities, infrastructure, and industrial customers in emerging markets.
• Wilson Transformer Company: Australian specialist in power and distribution transformers, including amorphous core technology. Closely comparable privately held mid-sized manufacturer with custom engineering capability and renewable/rail exposure.
• ERMCO (Electric Research and Manufacturing Cooperative): US-headquartered transformer manufacturer producing distribution and small power transformers, including amorphous core units. Comparable scale and product mix, focused on North American utility and commercial markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

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Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Trafo Elettro