What Alfa Union does

Alfa Union, a.s. is a Czech joint-stock B2B manufacturer founded in 1997 as the successor to ČKD TRAKCE and SIEMENS-ČKD, headquartered in Prague-Modřany with 51–100 employees. The company designs and manufactures electromechanical components for three end-markets: rail vehicles, switchgear and substations, and general energetics. Core products include DC disconnectors (STO, STOL, STOR series), change-over switches, contactors, relays, track brakes, couplers, controllers, and mechanical locking systems, supplemented by customized engineered solutions and a distribution franchise for Schaltbau GmbH rail-grade products.

The customer base consists of rail vehicle manufacturers (OEMs) and rail infrastructure operators, served through direct sales and a global representative network covering Africa (African Traction Systems), Asia (Tianjin Alfa Union Electric Co., Ltd in China), Europe, North America (Brookville Equipment Corporation), South America (Ecuador), and Australia/Oceania, plus disclosed partnerships including YEK RAYLI SISTEMLER A.S. in Turkey. The company holds ISO 9001, ISO 14001, EN 3834, EN 15085 welding certifications and a ČD (Czech Railways) railway certificate, indicating compliance with quality, environmental, welding, and rail-industry qualification regimes required by rail OEMs.

Alfa Union operates as a private, mature industrial supplier with no disclosed external funding. Its revenue model is project- and contract-driven, with quote-based pricing on engineered hardware and engineered-to-order systems. Recent observable signals — geographic expansion into Australia and Ecuador, the Schaltbau distribution partnership, active hiring of mechanical technologists and design engineers, and promotion of customized solutions — point to an ongoing moderate expansion of footprint and product surface within the rail electromechanical niche.

Name

Alfa Union

Legal name

Alfa Union, a.s.

Website

https://alfaunion.cz

Company type

Private

Founded year

1997

Operating status

Operating

Headcount range

51–100 employees

Short description

Alfa Union is a Czech B2B manufacturer (founded 1997, successor to ČKD TRAKCE / SIEMENS-ČKD) of electromechanical components — DC disconnectors, contactors, relays, track brakes, couplers, and locking systems — for rail vehicles, switchgears and energetics, serving global rail OEMs and infrastructure operators via direct sales and a worldwide representative network.

Ownership category

akta.pro rank

Product category

Railway Electromechanical Components

NAICS

Switchgear and Switchboard Apparatus Manufacturing (335313), Relay and Industrial Control Manufacturing (335314), Electrical Equipment Manufacturing (33531)

SIC

Switchgear & Switchboard Apparatus (3613), Electrical Industrial Apparatus (3620), Railroad Equipment (3743), Electronic Components & Accessories (3670)

akta.pro primary industry

Electromechanical Components (Relays, Switches, Potentiometers, Encoders) (IMAGAJAB)

akta.pro secondary industries

Circuit Breakers, Disconnectors, Earthing Switches & Switchgear Components (EUADACAH), Rail SCADA & Power/Electrification Control (Traction Power, Substations, OCS) (TLAJAEAF), Low-Voltage Switchboards & Panelboards (LV distribution panels, MCCs, switchboards) (IMAGAEAA)

Keywords

• Rail vehicle components
• Electromechanical switchgear
• Traction substations
• DC disconnectors
• Railway contactors

Headquarters

HQ city

Modrany

HQ country

Czechia

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Electromechanical Components Sales: Alfa Union develops, manufactures, and sells electromechanical components for railway vehicles, switchgears for substations, and energetics. Products include DC disconnectors, contactors, track brakes, couplers, controllers, and custom solutions.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels2 records

Core offering

Alfa Union develops, manufactures, and sells electromechanical components for rail vehicles (trams, electric and diesel-electric locomotives, metros, EMU/DMU units) and switchgears for traction substations and energetics. Its product range includes DC disconnectors (STO, STOL, STOR series), DC change-over switches, contactors and relays, electromagnetic track brakes, master and brake controllers, power and earthing contacts, couplers, locking systems, and customer-specific customized solutions. The company also distributes Schaltbau brand railway components.

Product overview

Alfa Union is a Czech electromechanical components manufacturer serving the global rail vehicle, switchgear, and energy markets. The company was founded in 1997 and acquired know-how from ČKD TRAKCE and SIEMENS/ČKD. The product portfolio centers on three main categories: (1) Components for Rail Vehicles, including DC disconnectors (STO, STOL, STOR series), DC change-over switches (STU/STP, STUY/STPY), DC contactors and relays, electromagnetic track brakes, master and brake controllers, power and earthing contacts, couplers, and locking systems; (2) Components for Switchgears covering DC disconnectors and change-over switches for substations; and (3) Distributed Schaltbau products (connectors, switches, contactors, and railway equipment). The company also provides custom-engineered solutions tailored to customer specifications. The products are designed for applications in trams, electric and diesel-electric locomotives, metro systems, and railway passenger cars, operating across voltage ranges from 750VDC to 25kV AC.

Differentiator

Problem solved

Functional benefit

Brands

• Schaltbau: Product line including Schaltbau connectors, switches, contactors, and railway equipment distributed by Alfa Union
• Alfa Union

Products and services

• DC Disconnectors STO Series (DC Odpojovače STO) DC disconnectors for installation in stationary switchgear stations for switching electrical circuits without load. Available in manual or motor-driven versions with emergency crank handle operation. Modular construction supports variant solutions; rated voltages 750VDC/1500VDC/3000VDC and rated currents up to 6300A. Designed for traction substation operators and railway infrastructure.
• DC Disconnectors STOL Series (DC Odpojovače STOL) DC disconnectors for stationary switchgear applications with manual or electromagnetic locking of end positions, or motor-driven variants with emergency crank handle. Rated currents up to 12000A. Used for switching DC electrical circuits without load in traction substations.
• DC Disconnectors STOR Series (DC Odpojovače STOR) DC disconnectors for stationary switchgear where the knife assembly moves in the plane of the terminals, allowing minimized installation dimensions when disconnected. Used in compact substation installations for DC switching without load.
• DC Change-Over Switches STU/STP (DC Přepojovače STU/STP) Devices for stationary applications used for switching unloaded circuits with manual or motor drive options and safety locks. Used in DC traction substations and energetics switching systems.
• DC Change-Over Switches STUY/STPY (DC Přepojovače STUY/STPY) Stationary devices for switching unloaded DC circuits with manual or motor drive options and optional safety locks. Used in railway traction substation and energetics applications.
• DC Contactors and Relays (DC Stykače a Relé) Devices for switching or disconnecting electrical circuits under load, designed for trams, electric and diesel-electric locomotives, metro, and EMU/DMU units. Rated current up to 1000A and rated voltage up to 1000V.
• Electromagnetic Track Brakes (Kolejnicové brzdy) Electromagnetic rail brakes for urban mass transit vehicles and railway passenger cars, providing emergency braking by friction against the rail. IP67 protection with magnetic attractive force up to 84kN. Designed for trams, metros, and rail passenger cars.
• Master and Brake Controllers (Řídící a Brzdové Kontroléry) Electromechanical devices for entering traction and braking force requirements for rail vehicles, including control and brake controllers for trams and mining vehicles. Driver-operated controllers with configurable outputs.
• Power and Earthing Contacts (Silové a Zemnící Kontakty) Modular contact system for simple mechanical disconnection of power electrical equipment, including special grounding contacts manufactured to customer specifications. Used in rail vehicles and substations for safe isolation.
• Couplers (Spřáhla) Mechanical and emergency couplers for light traction vehicles including trams. Mechanical couplers provide permanent coupling of two vehicles; emergency couplers are used for towing or pushing non-operational trams.
• Locking Systems (Zámkové Systémy) Key-based systems for ensuring safe state of rail vehicles for work on electrical equipment, blocking and releasing keys depending on their rotation to control various device functions. Used for maintenance safety on trams, locomotives, and metro vehicles.
• Customized Solutions (Zákaznická Řešení) Custom electromechanical device solutions engineered to customer technical specifications, including vacuum circuit breaker platforms, pantograph disconnectors, shop-switches, contactor cabinets, and door drives. Targeted at rail vehicle manufacturers and substation operators with non-standard requirements.
• Schaltbau Connectors (Schaltbau Konektory) Schaltbau brand connectors distributed by Alfa Union for railway applications, including power and signal connectors for rolling stock.
• Schaltbau Switches (Schaltbau Spínače) Schaltbau brand switches distributed by Alfa Union for railway applications, including control and switching devices for rolling stock and infrastructure.
• Schaltbau Contactors (Schaltbau Stykače) Schaltbau brand contactors distributed by Alfa Union for railway applications, supporting traction and auxiliary switching in rolling stock.
• Schaltbau Railway Equipment (Schaltbau Zařízení pro Dráhy) Schaltbau brand railway equipment distributed by Alfa Union, encompassing specialized electromechanical railway components for rolling stock and infrastructure.

Named customers2 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

17 partnerships are on record, tiered regional, strategic and core.

• African Traction SystemsregionalChannel Partner/ Reseller/ DistributorSouth African representative for Alfa Union products. Located in Boksburg, South Africa. Contact: Peter Moore, [email protected]
• Tianjin Alfa Union Electric Co., LtdstrategicChannel Partner/ Reseller/ DistributorExclusive Chinese partner located in Tianjin, Binhai Hi-tech Development Area. Contact: Bin Wang, [email protected]
• DFM InternationalregionalChannel Partner/ Reseller/ DistributorKorean representative. Contact: Yu Sung-Eun, [email protected]
• POWERSYSregionalChannel Partner/ Reseller/ DistributorKorean representative based in Seoul. Contact: J.H. Kim, [email protected]
• Multi Usaha Suku CadangregionalChannel Partner/ Reseller/ DistributorSingapore representative. Contact: Irwan Wibisono, [email protected]
• YEK RAYLI SISTEMLER A.S.regionalChannel Partner/ Reseller/ DistributorTurkish representative based in Istanbul. Contact: Savas Karaarslan, [email protected]
• Denis TechnologyregionalChannel Partner/ Reseller/ DistributorRomanian representative based in Bucharest.
• Hexa-PortregionalChannel Partner/ Reseller/ DistributorHungarian representative based in Inárcs.
• IVS PolskaregionalChannel Partner/ Reseller/ DistributorPolish representative based in Poznan. Contact: Piotr Filipiak, [email protected]
• Technodis d.o.o.regionalChannel Partner/ Reseller/ DistributorSerbian representative based in Belgrade.
• DACHregionalChannel Partner/ Reseller/ DistributorRepresentation for Germany, Austria, and Switzerland. Contact: Mitko Nastevski, [email protected]
• SIMEX, spol. s r.o.regionalChannel Partner/ Reseller/ DistributorBulgarian representative based in Prague.
• IG&G SrlregionalChannel Partner/ Reseller/ DistributorItalian representative based in Genoa. Contact: Ivano Garelli, [email protected]
• BERK CZ s.r.o.regionalChannel Partner/ Reseller/ DistributorUkrainian representative based in Prague.
• Brookville Equipment CorporationregionalChannel Partner/ Reseller/ DistributorNorth American representative based in Brookville, Pennsylvania, USA.
• CoinproregionalChannel Partner/ Reseller/ DistributorEcuadorian representative based in Quito.
• Schaltbau GmbHcoreTechnology or IntegrationAlfa Union distributes Schaltbau products including connectors, switches, contactors, and railway equipment. Schaltbau is a German manufacturer of electromechanical components for railway applications.

Scale indicators2 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• ABB: Global broad-line supplier of low- and medium-voltage switchgear, traction power, and rail electrification systems. Overlaps with Alfa Union in DC switchgear and power distribution components for rail substations, but operates at vastly greater scale and with a much broader portfolio.
• Eaton: US-listed power management company with rail-relevant switchgear, contactors, and power distribution products. Comparable in industrial switchgear and electrical control components, though rail is one of many served verticals rather than its exclusive focus.
• TE Connectivity: Global connector and electronic components supplier with a dedicated rail business — overlaps with Alfa Union in power/earthing contacts, connectors, and selected switching components for rail vehicles, though at vastly greater scale and breadth.
• Knorr-Bremse: Global leader in rail braking systems and on-board systems. Direct overlap with Alfa Union's electromagnetic track brake line (Kolejnicové brzdy), though Knorr-Bremse serves the same customers as part of a much larger rail systems portfolio.
• Wabtec Corporation: US-listed global rail equipment supplier encompassing transit, freight, and electronics. Comparable through its Sécheron subsidiary in DC traction switchgear and through broader on-board electrical and braking components overlapping with Alfa Union's catalog.
• Siemens Mobility: Major rail OEM and supplier of rail electrification, traction power, and rolling-stock electrical equipment. Competes with Alfa Union indirectly through rail-integrated switchgear and component supply, though at very different scope and scale.

Direct peers

• Schaltbau GmbH: German manufacturer of electromechanical components for rail vehicles (contactors, switches, connectors, disconnectors) — directly competing with Alfa Union across overlapping product lines. Notably, Schaltbau is also a distribution partner of Alfa Union, making the relationship both cooperative and competitive.
• Sécheron (Wabtec): Swiss-origin specialist (now part of Wabtec) in DC traction power substations, high-voltage switchgear, and on-board electrical protection for rail vehicles — directly comparable product overlap with Alfa Union's STO/STOL/STOR DC disconnectors and substation components.

Emerging players

• CRRC Times Electric: Chinese rail power electronics and traction systems subsidiary of CRRC, supplying DC switchgear, traction converters, and on-board electrical equipment. Comparable product overlap with Alfa Union's switchgear and contactor portfolio, primarily competing in Asia.
• Medha Servo Drives: Indian rail electronics and traction equipment manufacturer supplying components for locomotives, EMUs, and metros — comparable in scope to Alfa Union's rail vehicle component catalog, though more software/electronics weighted and at a larger scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/alfa-union

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries1 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 Alfa Union