What Ferokotao does

FEROKOTAO d.o.o. is a Croatian, privately-held metal manufacturer specializing in transformer tanks for distribution, medium power, and special transformer applications. Founded in its current legal form in 1996 as a 100% privately-owned successor to the bankrupt KONČAR-FEROMONT, the company traces its production heritage to 1961 and operates from a 40,000+ m² facility in Donji Kraljevec, Croatia (Kolodvorska ulica 78/a), employing 251–500 workers across all metal trades. It describes itself as one of the most important manufacturers of metal components for industrial transformers in Europe, exporting to 40+ countries across Europe, the Americas, Asia, Africa, and Oceania.

The company's core products fall into three lines: corrugated wall tanks for distribution transformers (50 kVA–8,000 kVA, hermetically sealed, active or passive cooling, with panel heights 400–1,600 mm and fin depth 40–400 mm); medium power transformer (MPT) tanks rated 1–250 MVA with maximum component weight of 30 tons, designed for connection to external radiators or cooling batteries; and special transformer tanks for wind and solar power substations, earthing transformers/neutral couplers, and plunger core arc suppression reactors. Manufacturing relies on a GEORG TKWA 1600 finwall production line, a full suite of advanced welding processes (MIG, MAG, TIG, WIG, CMT), and comprehensive in-house surface treatment including shotblasting, sandblasting, hot-dip and spray galvanizing, and application of High-Solid, Zinc-flake and water-based coatings. Stated annual capacity is 7,000 distribution transformer tanks and 180 MPT tanks. The company is certified to EN ISO 9001:2015, EN ISO 14001:2015, EN ISO 3834-2:2007, and EN 1090-2:2018 (EXC3).

Revenue is generated through B2B custom manufacturing sold directly — without intermediaries — to major European transformer OEMs including Siemens (multi-facility: Hungary Budapest, Austria Linz, Austria Weiz, Germany Erlangen), Schneider Electric (France), Končar D&ST (Croatia), Kolektor Etra (Slovenia), BEZ Transformatory (Slovakia) and Starkstrom-Gerätebau (SGB, Germany Neumark and Regensburg). Pricing is quote-based, determined per project by transformer specifications, power rating, complexity, volume, and delivery requirements, typically under multi-year contracts. The company has no external equity funding, no parent company, and no disclosed financials; growth has been funded organically through earnings reinvestment and bank financing, with capital deployment historically directed at capacity expansion (2008), the GEORG finwall line (2012), MPT corrosion protection (2015), and EU co-financed energy-efficiency upgrades (2019).

Name

Ferokotao

Legal name

FEROKOTAO d.o.o.

Website

https://ferokotao.hr

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

251–500 employees

Short description

FEROKOTAO d.o.o. is a Croatian privately-held metal manufacturer producing transformer tanks for distribution, medium power, and special transformer applications. It supplies European OEMs including Siemens, Schneider Electric, and Končar from a 40,000+ m² facility, with annual capacity of 7,000 DT and 180 MPT tanks.

Ownership category

akta.pro rank

Headquarters

HQ city

Donji Kraljevec

HQ country

Croatia

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Transformer Tank Manufacturing: Custom manufacturing of metal transformer tanks for distribution, medium power, and special transformer applications. Production sold to major European transformer manufacturers with annual capacities of 7,000 DT units and 180 MPT units.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Ferokotao is a custom manufacturer of metal transformer tanks (boilers) for distribution transformers, medium power transformers, and special transformers. Production spans corrugated wall tanks (50kVA-8,000kVA) at 7,000 units/year, medium power transformer tanks (1-250 MVA) at 180 units/year, and specialized tanks for wind/solar substations, earthing transformers, and arc suppression reactors. The company sells directly to major European transformer OEMs under quote-based multi-year contracts.

Product overview

Ferokotao is a manufacturer of metal transformer tanks, producing three main product lines: corrugated wall tanks for distribution transformers (50kVA-8,000kVA) with annual capacity of 7,000 units; medium power transformer tanks (MPT, 1-250 MVA) with annual capacity of 180 units; and tanks for special transformers including wind/solar power, earthing transformers, and arc suppression reactors. The company operates over 40,000 m² of production space and serves customers across Europe, Asia, Americas, Africa, and Oceania.

Differentiator

Problem solved

Functional benefit

Products and services

• Corrugated Wall Tanks for Distribution Transformers
• Medium Power Transformer Tanks (MPT) Transformer tanks for medium power applications rated from 1.0 MVA to 250 MVA, with maximum component weight of 30 tons, designed for connection to external cooling units (radiators or cooling batteries) and manufactured to customer specifications and EN/ISO standards. Annual capacity of 180 units.
• Tanks for Special Transformers Specialized transformer tanks including wind/solar power substation tanks (corrugated or flat wall, up to 10+ MVA with passive or active cooling), earthing transformers and neutral couplers (hermetically sealed, ±0.03 MPa test pressure), and plunger core arc suppression reactors with optional vacuum-proof design and test pressures up to 0.6 MPa.
• On-site Welding and Corrosion Protection Services Worldwide on-site welding and corrosion protection services for transformer tanks, available across the company's export markets.

Quantifiable outcome

• 68.44% energy savings in lighting achieved through LED modernization project, reducing CO2 emissions by 40+ tons annually
• +1 more outcomes

Named customers9 records

Segments3 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

Nine partnerships are on record, tiered minor and core.

• Ministry of Environment and Energy of CroatiaminorStrategic or Co-development Partner · 25 February 2019EU co-financing partner for lighting modernization project achieving 68.44% energy savings and reducing CO2 emissions by 40+ tons annually. Project implemented with support from the Ministry and the Fund for Environmental Protection and Energy Efficiency.
• Fund for Environmental Protection and Energy Efficiency (Croatia)minorStrategic or Co-development Partner · 25 February 2019Co-financing partner for LED lighting modernization project in production facilities resulting in 68.44% electricity consumption reduction and 40+ tons CO2 annual emission reduction.
• Siemens AGcoreTechnology or IntegrationLong-standing customer relationship for supply of distribution transformer tanks (Siemens Hungary, Transformer Division DB Budapest), medium power transformer tanks (Siemens Austria Transformers Linz), and distribution transformer tanks (Siemens AG Österreich Transformers Weiz). Siemens represents one of FEROKOTAO's key enterprise accounts with multiple facility relationships across Europe.
• Končar GroupcoreTechnology or IntegrationHistorical successor relationship - FEROKOTAO was established in 1996 inheriting knowledge and experience from former Končar-Feromont. Current customer relationship with Končar D&ST Zagreb for distribution transformer tanks. One of the most important industrial partnerships in the region.
• Schneider ElectriccoreTechnology or IntegrationKey enterprise customer for distribution transformer tank supply to Schneider Electric France facility. Represents a significant European market relationship.
• BEZ TransformatorycoreTechnology or IntegrationSlovakia-based transformer manufacturer customer for distribution transformer tank supply. Regular customer with testimonial evidence of satisfaction with delivery speed and quality.
• Kolektor EtracoreTechnology or IntegrationSlovenia-based transformer manufacturer and key customer for medium power transformer tanks supply to Kolektor Etra Ljubljana facility.
• Starkstrom-Gerätebau GmbH (SGB)coreTechnology or IntegrationGerman transformer manufacturer with dual customer relationship - distribution transformer tanks to SGB Neumark and medium power transformer tanks to Regensburg facility.
• Ministry of Labor and Pension System of CroatiaminorStrategic or Co-development PartnerPartnership for vocational training project 'Naukovanje za obrtnička zanimanja' (Apprenticeship for Craft Trades) co-financed from European Social Fund. Project value 92,958.40 HRK, providing practical training for 6 students in locksmith work from September 2016 to August 2017.

Scale indicators5 records

Recent moves10 records

Expansion highlights5 records

Broad incumbents

• Elsewedy Electric (Transformers Division): Elsewedy Electric is a Middle East/Africa-based power transformer manufacturer with growing European presence and export reach overlapping FEROKOTAO's 50+ country footprint. Comparable as a broad incumbent in the regional transformer ecosystem where FEROKOTAO exports specialty tank products.
• Hitachi Energy (formerly ABB Power Grids): Hitachi Energy is one of the world's largest transformer manufacturers, producing power and distribution transformers globally and supplying many of the same Tier-1 customers FEROKOTAO serves. Comparable as the dominant broad incumbent in the transformer ecosystem where FEROKOTAO operates as a Tier-1 component supplier.
• Siemens Energy Transformers: Siemens Energy is a global transformer manufacturer with major facilities in Austria, Germany, and Hungary — all of which are FEROKOTAO customers. Comparable as the dominant downstream incumbent whose procurement decisions directly drive FEROKOTAO's revenue.
• Schneider Electric Transformers: Schneider Electric manufactures distribution transformers and grid equipment across Europe, with France as a key facility supplied by FEROKOTAO. Comparable as a Tier-1 transformer OEM/customer that drives demand for FEROKOTAO's DT tank product line.

Direct peers

• Pfiffner Group: Pfiffner is a Swiss-headquartered manufacturer of instrument transformers, power transformer components, and high-voltage equipment enclosures. Comparable as a European specialty manufacturer serving global transformer OEMs with fabricated metal/component products.
• Trench Group: Trench (part of Siemens Energy) designs and manufactures instrument transformers and core components for power transmission, with global manufacturing and strong European presence. Directly comparable as a fabricated metal/enclosure supplier into the same transformer OEM customer set.
• Maschinen- und Apparatebau GmbH (MKM Hungary): MKM is a Hungary-based metal fabrication company that manufactures transformer tanks and similar power equipment enclosures, serving many of the same European transformer OEMs as FEROKOTAO. Highly comparable in product, geography (Central European industrial belt), and customer profile.
• HTT Hungarian Transformer Works: HTT manufactures power and distribution transformers in Hungary and operates internal tank fabrication capabilities. Comparable as a regional transformer/tank producer serving European utilities and OEMs with overlapping customer relationships to FEROKOTAO.

Regional players

• Končar Group (Distribution and Special Transformers): Končar is the Croatian state-affiliated transformer manufacturer and a heritage customer from FEROKOTAO's predecessor (Končar-Feromont). Comparable as a regional transformer OEM and direct customer/partner with strong Croatia geographic overlap.
• ELSEN Transformer (Slovenia): ELSEN designs and manufactures distribution and power transformers in Slovenia, serving Central and Eastern European utilities and OEMs. Comparable as a regional transformer manufacturer with overlapping customer base and similar Central European supply chain.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

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 Ferokotao