What Vuje does

VUJE, a.s. is a Slovak nuclear energy engineering and power-sector services firm headquartered in Trnava, founded in 1977 as the Výskumný ústav jadrových elektrární (Research Institute of Nuclear Power Plants) and privatized in 1994 into an employee-owned joint-stock company. It operates as a single-source, turnkey delivery contractor for the full lifecycle of nuclear and conventional power assets — from project documentation and licensing support through non-destructive testing, nuclear safety and structural material analyses, physical and energy startup of new plants, ongoing operations support, and decommissioning of end-of-life facilities (including the Bohunice V1 dismantling for JAVYS in consortium with Westinghouse).

Its core technology stack combines proprietary remote-controlled telerobotic manipulators (the IRIS, KOVOK, and ZOK-PG series, with the KOVOK-1000M standing 17 metres tall) for inspection and maintenance inside steam generators and reactor vessels, full-scope nuclear plant and transmission/distribution simulators, and virtual reality–based training systems for VVER-440 operator qualification. The company runs an active R&D program that includes the V4G4 Centre of Excellence (Allegro Generation IV helium-cooled fast reactor) and a hydrogen concentration measurement system deployed at Rivne NPP in Ukraine under EBRD financing.

VUJE generates revenue primarily through professional services contracts (engineering, safety analysis, commissioning, decommissioning, training) and specialized hardware sales (manipulators, simulators, diagnostic systems) sold directly to nuclear utilities and TSO operators. It is employee-owned, has 650+ staff including over 70 researchers, and serves nuclear operators across Slovakia, the Czech Republic, Hungary, Ukraine, Russia, France, South Korea, and Vietnam — most recently adding Framatome as a strategic partner via an MOU signed in March 2026.

Name

Vuje

Legal name

VUJE, a. s.

Website

https://vuje.sk

Company type

Private

Founded year

1977

Operating status

Operating

Headcount range

501–1,000 employees

Short description

VUJE, a.s. is an employee-owned Slovak nuclear engineering firm providing turnkey design, inspection, safety analysis, manipulator systems, simulators, training, and decommissioning services to nuclear power plant operators and TSO clients across Central and Eastern Europe.

Ownership category

akta.pro rank

Product category

Nuclear Engineering Services

NAICS

Nuclear Electric Power Generation (221113), Computer Systems Design and Related Services (54151), Computer Systems Design and Related Services (5415)

SIC

Services-Testing Laboratories (8734), Services-Computer Integrated Systems Design (7373), Measuring & Controlling Devices, Nec (3829)

akta.pro primary industry

Nuclear Power Plant Operations & Maintenance (O&M) (EUACADAO)

akta.pro secondary industries

Component Qualification, Testing & Certification (Seismic, Environmental, EMI/EMC) (EUAKADAO), Reactor Protection, Safety Systems & Engineered Safeguards (ECCS, Containment Isolation) (EUAKADAI), Reactor Core Design, Neutronics & Thermal-Hydraulics Engineering Tools (EUAKADAD)

Keywords

• Nuclear engineering services
• Nuclear power plant commissioning
• Non-destructive testing
• Nuclear safety analysis
• Remote manipulator systems

Headquarters

HQ city

Trnava

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering and Turnkey Project Delivery: VUJE delivers complete nuclear and power engineering projects on a turnkey basis, from initial design documentation through to final testing and commissioning. This covers nuclear facility design, safety analyses, structural analyses, non-destructive testing, and nuclear power plant commissioning.
2. Specialized Equipment Manufacturing and Supply: Design, development, and supply of specialized remote-controlled manipulators, simulators, and diagnostic equipment for nuclear power plants (e.g., IRIS, KOVOK, ZOK-PG series).
3. Research and Development Services: Applied research in nuclear safety, thermohydraulics, structural analyses, electromagnetic field assessment, and electroenergetics. Conducted both domestically and through international consortia.
4. Training and Personnel Services: Training and qualification services for nuclear power plant personnel, including simulator-based training, operator courses, and specialized certification programs.
5. Nuclear Power Plant Decommissioning: Decommissioning services for nuclear facilities, including dismantling and fragmentation of large primary circuit components, as delivered in consortium with Westinghouse for JAVYS at Jaslovské Bohunice V1.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

VUJE provides turnkey engineering services for nuclear power plants and classical power engineering, covering project documentation, non-destructive testing, nuclear safety and structural analyses, physical and energy startup, decommissioning, and personnel training. It also designs and supplies proprietary remote-controlled manipulators (IRIS, KOVOK, ZOK-PG series), full-scope simulators, and diagnostic systems, and conducts applied R&D in nuclear safety, thermohydraulics, and Generation IV reactor concepts.

Product overview

VUJE is a nuclear energy engineering and services company providing comprehensive solutions from project documentation to final testing. The company operates as a single integrated offering rather than a modular platform, delivering nuclear power plant design, non-destructive testing, safety analyses, structural material analyses, and plant startup services. Its product portfolio includes specialized robotic systems (IRIS and KOVOK manipulator series) for remote nuclear facility inspection, full-scope training simulators, and research activities including 4th generation reactor development (Allegro). The company serves nuclear facilities across Slovakia, Czech Republic, Hungary, Ukraine, and internationally.

Differentiator

Problem solved

Functional benefit

Products and services

• Nuclear Power Plant Design Services Comprehensive project documentation for nuclear energy facilities to support licensing of equipment and systems, delivered to nuclear utility operators and regulators.
• Non-Destructive Testing (NDT) Controls Development and optimization of NDT inspection methodologies for nuclear facilities, supporting steam generator, reactor vessel and primary circuit inspections.
• Nuclear Safety Analyses Analytical evaluation of nuclear safety using state-of-the-art computational programs for nuclear power plant operators and regulators.
• Structural Material Analyses Radiation embrittlement analysis of reactor pressure vessel materials, corrosion monitoring of structural materials, and assessment of equipment changes on material properties.
• Nuclear Power Plant Startup Services Physical and energy startup of new nuclear power plants, delivered as part of VUJE's commissioning services.
• IRIS Telerobot System Proprietary remote-controlled telerobot system for inspection of steam generators and other nuclear power plant components, increasing safety of nuclear power plants through remote diagnostics.
• Manipulator Systems (KOVOK, ZOK-PG, IRIS series) Remote-controlled manipulators for inspection, plugging, and maintenance operations in nuclear power plants, supplied to operators including ČEZ, MVM/Paks and others.
• Nuclear Power Plant Simulators Full-scope simulators for nuclear power plant operator training, transmission system simulators, and distribution network simulators operated at VUJE's Bratislava training center.
• Training and Qualification Services Training and qualification services for nuclear facility personnel, including simulator-based training, operator courses, and specialized certification programs, with virtual reality-based operator training for VVER 440 reactors.
• Nuclear Power Plant Decommissioning Services Decommissioning services for nuclear facilities including dismantling and fragmentation of large primary circuit components, delivered in consortium with Westinghouse for JAVYS at Jaslovsk\u00e9 Bohunice V1.
• Allegro Reactor Research Development of an innovative Generation IV helium-cooled fast neutron spectrum reactor as part of the V4G4 Centre of Excellence international consortium.
• Power Engineering Research Research on synchronous phasor measurements, environmental pollution assessment, automated diagnostic systems, and transmission/distribution reliability for power system operators.
• Bird Protection System for Power Lines Remotely controlled manipulator used to install reflective markers on 110 kV and 22 kV power lines to prevent bird collisions in protected bird areas; can install up to 100 reflective elements per day.

Quantifiable outcome

• VUJE supplied manipulator IRIS-19 to Dukovany NPP with ET inspection capability using two probes simultaneously, UT welding inspections, and plugging of leaking heat exchange tubes by welding.
• +2 more outcomes

Named customers7 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• FramatomecoreStrategic or Co-development Partner · 10 March 2026VUJE and Framatome signed a memorandum of understanding at the Nuclear Energy Summit in France (March 2026). The cooperation positions Slovakia as a sought-after partner on the international nuclear energy stage. Coverage in Denník Postoj described this as evidence that nuclear energy elevates Slovakia's international standing.
• WestinghousecoreStrategic or Co-development PartnerWestinghouse-VUJE Consortium is delivering the 'Dismantling of Large Primary Circuit Components' project for JAVYS at Jaslovské Bohunice V1 NPP. VUJE provides dismantling and fragmentation of contaminated primary circuit components. This is one of the most demanding parts of the decommissioning project.
• V4G4 Centre of ExcellencecoreStrategic or Co-development PartnerVUJE is a significant member of the international consortium V4G4 Centre of Excellence, established for coordinated research and development of Generation IV helium-cooled fast neutron reactors (Allegro project) — one of the selected prospective directions for nuclear energy development.
• SPICE ConsortiumminorStrategic or Co-development PartnerVUJE participates in the SPICE transformation-innovation consortium developing a new generation of intelligent data platforms.
• CONFIDENCE Project (EJP CONCERT)minorStrategic or Co-development PartnerVUJE organized the final working conference for the international CONFIDENCE project, part of the EU EJP CONCERT (Horizon 2020) research program on modeling and decision-making in nuclear emergency situations. 88 participants from international organizations, research institutes, authorities, and NGOs attended.
• ENGAGE Project (EJP CONCERT)minorStrategic or Co-development PartnerVUJE was the key Slovak contributor to the ENGAGE project, also part of the EJP CONCERT, focused on stakeholder involvement and radiological risk governance.
• NRG EventsminorImplementation/ SI/ Consulting PartnerVUJE partnered with NRG Events to organize the EU Nuclear Power Plant Simulation Forum 2019 conference in Bratislava and Trnava.
• Nadácia Jána Korca (Ján Korec Foundation)minorOthersFoundation established by the founder and first director of VUJE, Ján Korec, to support charitable causes. Over 23 years, the foundation supported 2,735 stories. VUJE maintains a close relationship with the foundation.
• Technical University of KošiceminorStrategic or Co-development PartnerSignificant Slovak scientific and technical capacities collaborated with VUJE on development and manufacturing of specialized fragmentation equipment for decommissioning of V1 Jaslovské Bohunice.
• AMAVETminorGTM or Marketing PartnerVUJE supports the AMAVET Festival of Science and Technology, sponsoring and mentoring young technical talents. Marek Kukučka, VUJE lecturer, serves as a judge in the competition and mentor to students who achieved 2nd place at the international CASTIC competition in Macau.

Scale indicators5 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Studsvik: Swedish nuclear engineering and fuel services firm offering safety analyses, decommissioning, and materials/structural integrity services — closely comparable service portfolio to VUJE.
• ONET Technologies: French nuclear engineering services provider specializing in decommissioning, robotics, and waste management — overlapping with VUJE's manipulator and decommissioning offerings.
• NUVIA: European nuclear services group (subsidiary of Soletanche Freyssinet/VINCI) providing decommissioning, radiological protection, waste management, and engineering services across European nuclear markets.
• NUKEM Technologies: German nuclear engineering and consulting firm with expertise in decommissioning, waste management, and fuel cycle — directly comparable mid-sized European nuclear services peer.
• ÚJV Řež: Czech nuclear research and engineering institute serving VVER-440 operators (Dukovany, Temelín) with similar mix of design, safety analysis, NDT, simulators, and R&D services. The closest head-to-head peer in the VVER engineering niche.

Broad incumbents

• Framatome: French Tier-1 nuclear OEM and services group covering design, fuel, instrumentation, and plant services globally. VUJE's signed MoU partner and the dominant Western nuclear services counterpart.
• Westinghouse Electric Company: U.S. Tier-1 nuclear OEM and services provider; VUJE's consortium partner on the JAVYS Bohunice V1 decommissioning. Competes and collaborates on large international nuclear projects.

Emerging players

• Mirion Technologies: U.S.-based provider of radiation detection, measurement, and dosimetry solutions for nuclear facilities — overlapping with VUJE's dosimetry, diagnostics, and radiation measurement offerings.

Others

• JAVYS: Slovak state-owned nuclear decommissioning authority and a key VUJE customer/partner at Jaslovské Bohunice V1; provides useful revenue-side context as the dominant domestic decommissioning buyer rather than a direct competitor.

Regional players

• KFKI Atomic Energy Research Institute (EK): Hungarian nuclear research institute supporting the Paks NPP with reactor physics, safety analyses, and fuel cycle R&D. Comparable peer in terms of VVER-440 domain expertise.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@vuje-energetika

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 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 Vuje