ALTPRO
ALTPRO is a Croatian safety-critical railway signalling company founded in 1994, designing SIL 4-certified train detection, axle counting, level crossing protection and INDUSI ATP systems, plus the HERMES hydrogen powertrain, serving railway operators, metros and rolling stock OEMs across more than 55 countries.
- Company typePrivate
- Founded1994
- HeadquartersVelika Gorica, Croatia
- Headcount101–250
- GTM typeB2B
- OfferingHardware or Manufacturing
What ALTPRO does
ALTPRO d.o.o. is a Croatian-headquartered railway signalling specialist founded in 1994, designing and delivering safety-critical systems for railway infrastructure and rolling stock. Its infrastructure signalling portfolio covers train detection, axle counting (APAX), level crossing protection, and command-and-control system integration; its rolling stock signalling line includes INDUSI-based automatic train protection systems (RAS90, RAS 8385) and integrated on-board solutions; and a newer hydrogen solutions line delivers the HERMES fuel cell powertrain for non-electrified routes. Core technology rests on proven inductive wheel sensing, SIL 4-certified architectures, and ongoing R&D in interoperability (AP STM between INDUSI and ETCS) and digitalization (FSDT 6/12, CENDIS cloud diagnostics, InspectRAIL autonomous inspection).
The company operates as a private founder-led limited liability company (ALTPRO d.o.o., share capital EUR 909,140) with 200+ engineers and industry experts across 5 regional locations, including R&D and production at the Odra 2 Innovation Center and a new Velika Gorica manufacturing facility. Revenue is generated through three streams: hardware sales of proprietary signalling products and systems, integration and turnkey project delivery services for railway operators, and recurring maintenance and support services delivered through a partner workshop network in Southeast Europe. Pricing is quote-based and project-specific, with multi-year contract cadence typical for infrastructure delivery.
ALTPRO sells directly to enterprise buyers (national railways, infrastructure managers, metros, rolling stock manufacturers, and airports) and reaches 55+ countries across 6 continents through a combination of direct enterprise sales and a global partner network for localized delivery. Notable customers include KONČAR KEV, Srbija Voz, Tyne and Wear Metro, OSE (Greece), PESA (Romania), Wuhu Monorail (China), Los Angeles International Airport (LAX) and Austrian Railways, with OEM integration partners including Stadler, CAF Signalling, HASLER, CRRC and Alstom (formerly Bombardier). The company has received substantial EU R&D grant funding (cumulatively roughly EUR 30M+ across 8+ projects) and is led by founder Zvonimir Viduka, who was named Croatia's EY Entrepreneur of the Year 2025 and represented the country at the EY World Entrepreneur of the Year finals in Monaco in 2026.
ALTPRO firmographics
Firmographics- Name
- ALTPRO
- Legal name
- ALTPRO d.o.o.
- Website
- https://altpro.com
- Company type
- Private
- Founded year
- 1994
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- ALTPRO is a Croatian safety-critical railway signalling company founded in 1994, designing SIL 4-certified train detection, axle counting, level crossing protection and INDUSI ATP systems, plus the HERMES hydrogen powertrain, serving railway operators, metros and rolling stock OEMs across more than 55 countries.
- Ownership category
- akta.pro rank
ALTPRO industry classification
Industry- Product category
- Railway Signalling Systems
- NAICS
- Support Activities for Rail Transportation (48821), Relay and Industrial Control Manufacturing (335314)
- SIC
- Railroad Equipment (3743), Measuring & Controlling Devices, Nec (3829)
- akta.pro primary industry
- Rail Signaling & Train Control Infrastructure (Interlockings, ETCS/CBTC Wayside) (TLAJADAB)
- akta.pro secondary industries
- Automatic Train Control / Protection Supervision (ATP/ETCS/PTC Oversight) (TLAJAEAC), Safety Instrumented Systems & Machine Safety Control (SIS, Safety PLCs, Relays) (IMAGABAF)
Keywords
Where ALTPRO is headquartered
LocationHeadquarters
- HQ city
- Velika Gorica
- HQ country
- Croatia
- HQ region
- Europe
Offices3 records
Markets served
ALTPRO business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Technology or R&D, Supply Chain, Operations, Infrastructure, Marketing or Sales
Revenue model
- Signalling Products and Systems: Sale of proprietary railway signalling products and systems including train detection, axle counting, level crossing protection, and rolling stock ATP systems. Products are SIL 4 certified.
- Integration Services: Turnkey project delivery and systems integration services combining technical excellence with customer-focused approach for complex railway signalling projects.
- Maintenance and Support Services: Preventive and corrective maintenance, spare parts management, mobile service interventions through partner workshop network across Southeast Europe, and technical support.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | B2B enterprise pricing for railway signalling systems |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels6 records
ALTPRO product offering
Product offeringCore offering
ALTPRO designs and manufactures safety-critical railway signalling products and systems for infrastructure and rolling stock, including axle counters (APAX), level crossing protection systems, train detection sensors, and INDUSI-based automatic train protection systems (RAS90, RAS 8385). The company also delivers integrated vehicle signalling solutions combining INDUSI ATP with ETCS, hydrogen fuel cell propulsion systems (HERMES) for non-electrified routes, and digitalization solutions (FSDT, CENDIS, InspectRAIL). All safety-critical products are certified to SIL 4 and are sold to railway infrastructure managers, national railways, metros, and rolling stock manufacturers in 55+ countries.
Product overview
ALTPRO is a specialized railway signalling company offering three main solution categories: (1) Infrastructure Signalling including Level Crossing Protection, Axle Counting (APAX), Train Detection, CCS Integration, and Civil Works; (2) Rolling Stock Signalling including INDUSI ATP systems (RAS90, RAS 8385), Integrated Solutions, and Services; and (3) Hydrogen Solutions through the HERMES system. Products are certified to SIL 4 safety standards and are used in over 55 countries across 6 continents. The portfolio includes named products like APAX axle counter, AP STM device for ETCS/INDUSI interoperability, FSDT digitalization solutions, CENDIS cloud diagnostics, and InspectRAIL autonomous inspection robots. The company delivers from small-scale custom systems to complex turnkey projects through its global partner network.
Differentiator
Problem solved
Functional benefit
Brands
- APAX: Innovative axle counter and railway wheel sensor system
- HERMES
- RAS90
- AP STM
- FSDT 6 and 12
Products and services
- APAX Axle Counter Innovative axle counting and wheel detection system using proven inductive wheel sensing technology. Modular, network-oriented, interoperable, and scalable solution applicable for all rail traffic modalities including railway, metro, tram, and monorail. Target users are railway infrastructure managers and metros.
- Level Crossing Protection System Advanced protection systems for railway level crossings ensuring safety at road-rail intersections, including modern LX protection solutions. Target users are railway infrastructure managers and national railways.
- Train Detection System Systems for detecting train presence and movement using inductive wheel sensing technology, providing reliable train detection for railway infrastructure. Target users are railway infrastructure managers, metros, and monorail operators.
- CCS Integration Command and Control System integration services for railway signalling infrastructure, enabling interoperability of signalling subsystems. Target users are railway infrastructure managers and transit authorities.
- RAS90 INDUSI ATP Automatic Train Protection system based on INDUSI PZB technology for rolling stock. Modular platform that can be integrated into different vehicle types with high safety and reliability standards. Communicates with ETCS (CAF Signalling) and HASLER JRU event recorders. Target users are rolling stock manufacturers and operators.
- Integrated Rolling Stock Solutions Turnkey integration solutions for railway vehicles combining INDUSI ATP and ETCS technologies according to national and European standards. ALTPRO serves as system integrator for complete vehicle equipment packages. Target users are rolling stock manufacturers and operators.
- HERMES Hydrogen System Self-sufficient hydrogen fuel cell power generation system for railway vehicles. Modular design with fuel cells, batteries, power electronics, and management systems in a 40-foot container, enabling electric traction without emissions on non-electrified routes. Target users are railway operators seeking to decarbonize diesel-hauled lines.
- AP STM Device Specific Transmission Module device ensuring interoperability between INDUSI and ETCS technologies on global railways. Validated prototype with confirmed laboratory functionalities demonstrated in operational railway environment. Target users are railway operators running mixed INDUSI/ETCS networks.
- FSDT 6 and FSDT 12 Digital Solutions Digitalization solutions for safety signalling equipment enabling bidirectional communication with centralized monitoring systems, continuous connection verification, automated fault response, and safe shutdown with hardware and software redundancy. Target users are railway infrastructure managers.
- InspectRAIL Autonomous Inspection System Autonomous mobile robot system for inspection of dangerous railway sections using steel cables stretched between catenary masts. Scans situations and automatically sends data to Intelligent Control System, signalling system, and traffic control centre. Target users are railway infrastructure managers seeking safer inspection of catenary and hazardous areas.
Quantifiable outcome
- Train detection systems deployed in railway, metro, tram and monorail across 55+ countries
- +5 more outcomes
Companies that use ALTPRO
Customer profileNamed customers8 records
Segments3 records
Ideal customer profiles3 records
ALTPRO technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
ALTPRO partnerships and signals
Strategic signalPartnerships
Nine partnerships are on record, tiered core, minor and major.
- Byte Lab grupa d.o.o.coreConsortium partner in INTEGRATOR project (KK.03.2.2.05.0027) for innovation of business processes and competitive production of new products. ALTPRO responsible for STM device commercialization.
- Metal Product d.o.o.minorConsortium partner in INTEGRATOR project for production cycle innovation.
- Fakultet prometnih znanosti, ZagrebcoreAcademic research partner in EU-funded R&D project for development of AP STM device ensuring INDUSI and ETCS interoperability. Project: Razvoj STM uređaja, KK.01.2.1.01.0047.
- Sense savjetovanje d.o.o.minorConsulting support for successful implementation of EU project ACTIVATION.
- Apsolon d.o.o.minorConsulting support for successful implementation of EU project Razvoj STM uređaja.
- China Railway Rolling Stock Corporation Ltd. (CRRC)majorStrategic partnership in INTEGRATOR project targeting entry into CRRC's supply chain for railway industry, expected to increase exports by 31%.
- StadlercoreRolling stock manufacturer partnership. ALTPRO delivers ATP systems for Stadler trains including FLIRT 3 for Serbia and metro trains for Newcastle. Long-term partnership referenced.
- CAF SignallingcorePartnership for ETCS integration with ALTPRO's ATP systems. RAS90 communicates with CAF Signalling ETCS in multiple projects including PESA Romania and KONČAR KEV Croatia.
- HASLERcoreEvent recorder (JRU) integration partner. RAS90 ATP systems communicate with HASLER JRU in PESA Romania and KONČAR KEV projects.
Scale indicators14 records
Recent moves7 records
Expansion highlights6 records
ALTPRO competitors and assessment
Company assessmentDirect peers
- HaslerRail (Knorr-Bremse Rail Vehicle Systems): Supplier of on-board event recorders (JRU) and telematics that integrate with ALTPRO's RAS90 ATP (HASLER JRU on PESA and KONČAR KEV trains). Direct peer in the on-board ATP/data stack for European rail vehicles.
- CAF Signalling: CAF Group's signalling arm, an ETCS technology partner of ALTPRO (RAS90 communicates with CAF Signalling ETCS on PESA Romania and KONČAR KEV projects). Closely comparable as a mid-sized, specialist ETCS/signalling vendor working with the same rolling stock OEMs.
- Frauscher Sensortechnik: Austrian-headquartered specialist in axle counting, wheel detection and track vacancy systems. Most direct competitor to ALTPRO's APAX offering, serving the same infrastructure managers and OEMs across Europe, North America and Asia.
- Pintsch (Pintsch Bubenzer / Pintsch Tiefenbach rail division): Long-established European supplier of axle counters, level crossing protection, track circuits and interlocking components. Closely comparable product portfolio to ALTPRO's infrastructure signalling line, with similar customer base among European rail infrastructure managers.
Broad incumbents
- Alstom: Global rail OEM and signalling incumbent that absorbed Bombardier Transportation (ALTPRO's historical LAX/Bombardier axle-counting partner). Competes with ALTPRO in axle counting, level crossing protection, ATP and ETCS wayside/on-board, but across a much broader portfolio and at national-program scale.
- Thales: Through Thales Ground Transportation, a leading ETCS/ERTMS and CBTC signalling vendor. Competes with ALTPRO in wayside signalling, interlockings and on-board ATP, and participates in the same national-framework tenders across Europe and Asia.
- Hitachi Rail: Global rail signalling and rolling stock player (formerly Ansaldo STS), with strong ETCS and interlocking offerings. Competes with ALTPRO for signalling retrofits and on-board ATP, especially in the UK and Southern European markets.
- CRSC (China Railway Signal & Communication Corporation): State-owned Chinese signalling giant covering interlockings, ETCS, CBTC and train control. Competes with ALTPRO in Asian markets and increasingly in European tenders, and is structurally similar in being rail-control focused rather than a broad OEM.
- Siemens Mobility: Major supplier of railway signalling (Trainguard ETCS, wayside interlockings, level crossing) and rolling stock. Overlaps with ALTPRO in axle counting, train detection and ATP/ETCS, and competes for the same European national accounts and OEM platforms.
Emerging players
- MERMEC: Italian rail diagnostics, signalling and infrastructure measurement specialist. Comparable in size and specialisation, with overlap in trackside sensing, axle counting and digital signalling solutions, and competing for similar European infrastructure modernisation projects.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
ALTPRO social profiles
Digital presenceALTPRO compliance and trust
Trust signalCompliance4 records
ALTPRO financial estimates
Financial estimateRevenue estimate
Valuation estimate
ALTPRO leadership team
Management profileNumber of profiles
Profiles5 records
ALTPRO funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
ALTPRO M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about ALTPRO
What does ALTPRO do?
ALTPRO designs and manufactures safety-critical railway signalling products and systems for infrastructure and rolling stock, including axle counters (APAX), level crossing protection systems, train detection sensors, and INDUSI-based automatic train protection systems (RAS90, RAS 8385). The company also delivers integrated vehicle signalling solutions combining INDUSI ATP with ETCS, hydrogen fuel cell propulsion systems (HERMES) for non-electrified routes, and digitalization solutions (FSDT, CENDIS, InspectRAIL). All safety-critical products are certified to SIL 4 and are sold to railway infrastructure managers, national railways, metros, and rolling stock manufacturers in 55+ countries.
Is ALTPRO a public or private company?
ALTPRO is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was ALTPRO founded?
ALTPRO was founded in 1994. It employs 101 to 250 people.
Where is ALTPRO based?
ALTPRO is headquartered in Velika Gorica, Croatia, in the Europe region.
How does ALTPRO make money?
Three revenue lines are on record. Signalling Products and Systems are the primary driver. The others are integration Services and maintenance and Support Services.
Who are ALTPRO's main competitors?
Direct peers on record are HaslerRail (Knorr-Bremse Rail Vehicle Systems), CAF Signalling, Frauscher Sensortechnik and Pintsch (Pintsch Bubenzer / Pintsch Tiefenbach rail division). Broad incumbents are Alstom, Thales, Hitachi Rail, CRSC (China Railway Signal & Communication Corporation) and Siemens Mobility. MERMEC is listed as an emerging player.
Does ALTPRO have an API?
No public API is recorded for ALTPRO.
What industry is ALTPRO in?
ALTPRO's product category is Railway Signalling Systems. Its primary akta.pro industry code is TLAJADAB, Rail Signaling & Train Control Infrastructure (Interlockings, ETCS/CBTC Wayside), with a secondary code of TLAJAEAC, Automatic Train Control / Protection Supervision (ATP/ETCS/PTC Oversight). Its NAICS code is 48821 and its SIC code is 3743.