Eltraf

What Eltraf does

ELTRAF, a.s. is a privately held Czech joint-stock company founded on 25 October 1994, headquartered and producing in Uhlířské Janovice (Kralice 49), and wholly owned since 2007 by AZ Elektrostav, a.s. of Nymburk. The company designs and manufactures transformer substations and switching stations for medium voltage and medium/low voltage applications — both concrete, combined (concrete basin plus steel-sheet skeleton), and steel-sheet constructions — in two principal configurations: the compact CTSbb (external operation) and the walkable ETSbb (internal operation).

Its product portfolio extends beyond substations to customized technological containers up to 20 meters in length for co-generation engines, diesel-electric units, portable boilers, and low-voltage switchboards; battery storage containers for energy storage systems; steel-sheet acoustic covers (KSTu) for transformers; railway kiosks for rail track power infrastructure; and kiosk and container switchgear at 0.4 kV. Products carry ISO 9001, ISO 14001, ISO 45001, and ISO 3834 certifications, and the substations have passed short-circuit and related tests at accredited laboratories in Berlin, Frankfurt, and Prague.

ELTRAF operates a direct B2B sales-led go-to-market, with quote-based pricing on customized builds and multi-year contracts. It serves three customer segments — energy distribution companies (the primary segment), industrial energy operators (co-generation, biogas, photovoltaic), and railway infrastructure operators — primarily in the Czech Republic and Central Europe, with a multilingual website indicating outreach to DACH, Western European, and CIS markets. The company is ISO-certified across quality, environment, occupational health and safety, and welding, and in 2024 completed an EU co-financed on-site photovoltaic installation with battery storage as a reference deployment for its energy storage container line.

Name

Eltraf

Legal name

ELTRAF, a.s.

Website

https://eltraf.cz

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

101–250 employees

Short description

ELTRAF, a.s. is a Czech manufacturer (founded 1994, owned by AZ Elektrostav since 2007) of medium-voltage transformer substations, customized technological containers up to 20m, battery storage containers, and railway kiosks, serving energy distribution utilities, industrial energy operators, and railway infrastructure primarily in Central Europe.

Ownership category

akta.pro rank

Product category

Electrical Power Distribution Equipment

NAICS

Electrical Equipment Manufacturing (3353), Switchgear and Switchboard Apparatus Manufacturing (335313)

SIC

Switchgear & Switchboard Apparatus (3613)

akta.pro primary industry

Substation Systems & Integration (EPC, Engineering, Protection, Commissioning) (IMAGAAAC)

akta.pro secondary industries

Distribution Substations & Switching Stations (MV) EPC (EUAEACAC), Testing, Commissioning & Energization Services (HV) (EUAEABAI)

Keywords

• Transformer substations
• Medium voltage equipment
• Technological containers
• Power distribution manufacturing
• Industrial electrical equipment

Headquarters

HQ city

Uhlirske Janovice

HQ country

Czechia

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Transformer Substations Manufacturing: Design and manufacture of whole concrete, combined (concrete basin and steel-sheet skeleton), and steel-sheet transformer facilities and switching stations for medium voltage and medium/low voltage applications
2. Technological Containers: Production of customized technological containers in various modifications for installing engines of co-generation units, diesel electric facilities, portable boilers, and electrical switchboards
3. Energy Storage Container Systems: Containers for energy storage technology installations, co-generation units, biogas stations, photovoltaic power plants, telecommunications and data networks
4. Low Voltage Switchboards and Distributors: Manufacturing of kiosk and container substations and low voltage switchboards (0.4 kV)
5. Railway Infrastructure Products: Various types of steel-sheet railway kiosks that are part of railway track infrastructure

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

ELTRAF, a.s. designs and manufactures transformer substations (compact CTSbb with external operation and walkable ETSbb with internal operation) and customized technological containers up to 20 meters in length for energy distribution companies and industrial entities. The company produces complete concrete, combined (concrete basin and steel-sheet skeleton), and steel-sheet transformer facilities and switching stations for medium voltage and medium/low voltage applications, plus technological containers for co-generation units, biogas stations, photovoltaic power plants, railway infrastructure, and electrical switchboards with thermal insulation and noise-reduction options.

Product overview

ELTRAF a.s. is a Czech manufacturer of transformer substations and technological containers. The core product portfolio centers on two main substation types: compact transformer substations (CTSbb) with external operation and walkable transformer substations (ETSbb) with internal operation, both designed for medium voltage applications. The company also manufactures technological containers up to 20 meters in length for installing co-generation units, diesel-electric facilities, portable boilers, and electricity storage systems. Supporting products include acoustic covers (KSTu) for transformers, railway kiosks for track infrastructure, and low voltage switchgear/distribution cabinets. The company operates in the B2B sector serving energy distribution companies and industrial entities, providing both standard and customized solutions adapted to specific customer requirements.

Differentiator

Problem solved

Functional benefit

Brands

• CTSbb: Compact transformer substations with external operation, designed for medium voltage energy distribution companies and energy consumers/producers.
• ETSbb
• KSTu

Products and services

• Compact Transformer Substations CTSbb (Kompaktní trafostanice CTSbb) Compact transformer substations with external operation (vn/nN), designed for energy distribution companies and electricity consumers/producers at medium voltage level. These kiosks form a core part of ELTRAF's substation portfolio.
• Walkable Transformer Substations ETSbb (Pochozí trafostanice ETSbb) Walkable transformer substations with internal operation (vn/nN), designed for energy distribution companies and electricity consumers/producers at medium voltage level, allowing internal maintenance and servicing access.
• Technological Containers (Technologické kontejnery) Customized technological containers produced in multiple modifications for installing co-generation engines, diesel-electric units, portable boilers, and medium/low voltage electrical switchboards. Containers reach up to 20 meters in length with optional thermal insulation, acoustic dampening, and customizable accessories.
• Battery Containers for Electricity Storage (Kontejnery pro skladování elektřiny) Containers designed for energy storage technology installation, forming a significant product group for storing electrical energy for co-generation units, biogas stations, photovoltaic power plants, telecommunications, and data networks.
• Acoustic Covers KSTu (Akustické kryty KSTu) Steel-sheet acoustic covers for transformers, designed to reduce noise emissions at transformer installations.
• Railway Kiosks (Drážní kiosky) Various types of steel-sheet railway kiosks that form part of railway track infrastructure, including 22 kV voltage-tested units for railway power and switching applications.
• Low Voltage Switchgear and Distribution Cabinets (Kioskové a kontejnerové rozvodny a rozvaděče NN, 0.4 kV) Kiosk-type and container-type switchgear and distribution cabinets for low voltage (0.4 kV) applications, supporting complete electrical distribution installations.
• E-houses (E-housy) Technological container units (E-houses) for various industrial applications including cogeneration, biogas stations, photovoltaic power plants, and telecommunications infrastructure.

Quantifiable outcome

• Products certified to international standards through accredited testing facilities

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Ormazabal: Spanish manufacturer (part of Velatia) of kiosk and packaged transformer substations and medium-voltage switchgear. Directly comparable to Eltraf in product scope (MV/LV substations) and target customers (distribution utilities and industrial energy operators).
• Lucy Electric: UK-based manufacturer of distribution transformer substations and MV/LV switchgear serving utilities and renewable-energy projects globally. Closely comparable to Eltraf in kiosk substation offerings and grid-edge product focus.
• KOEDITZ: German engineering and manufacturing firm specialized in MV/LV switchgear and distribution substations for utilities and industrial customers. Comparable to Eltraf as a mid-sized, custom-engineering European substation manufacturer.
• Driescher: German manufacturer of medium-voltage switchgear and distribution substations for utilities and industrial customers. Directly comparable in MV substation technology, custom engineering approach, and Central European customer base.
• Efacec: Portuguese manufacturer of power transformers, substations, and MV switchgear with a strong presence in European utility markets. Comparable product portfolio across substations, switchboards, and energy storage systems, with similar mid-sized European competitor positioning.

Others

• Rittal: German manufacturer of electrical enclosures, switchgear cabinets, and modular containerized power solutions. Adjacent to Eltraf in enclosure/container technology and customer base, but does not manufacture complete transformer substations as its core product.

Broad incumbents

• Eaton: US-headquartered power-management major with a broad MV/LV switchgear, substation, and electrical-enclosure portfolio. Competes with Eltraf in European industrial and utility MV distribution projects.
• Siemens Energy: Global broad-line energy equipment supplier offering MV/HV substations, switchgear, transformers, and grid-automation systems. Competes with Eltraf on large utility tenders and increasingly on standardized mid-voltage substations in Europe.
• Hitachi Energy: Global grid equipment leader (formerly ABB Power Grids) offering transformers, substations, and switchgear across all voltage classes. Competes with Eltraf on European utility and renewable-integration projects.
• Schneider Electric: Global electrical equipment and grid-software incumbent offering MV switchgear, packaged substations, and energy-storage solutions. Overlaps with Eltraf's MV/LV distribution equipment across utility and industrial segments.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/eltraf

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 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 Eltraf