Säteilyturvakeskus

What Säteilyturvakeskus does

Säteilyturvakeskus (STUK) is Finland's independent regulatory authority for radiation and nuclear safety, operating as a government agency (virasto) under the Ministry of Social Affairs and Health since 1958. Headquartered in Vantaa with a local inspector office at the Olkiluoto nuclear power plant site in Eurajoki, the agency supervises nuclear facilities including the Loviisa and Olkiluoto nuclear power plants, the Posiva encapsulation and final disposal facility, the Otaniemi research reactor, and mining operations, while also regulating radiation practices across healthcare, industry, research, and consumer-facing uses. The agency employs 303 staff (end of 2022) with 72.1% holding master's or doctoral-level qualifications and an average tenure of 14.4 years.

STUK's service portfolio spans regulatory licensing and inspection, environmental radiation monitoring through a national network of measurement stations, emergency preparedness, and a set of technical and digital products. Technical offerings include measurement and calibration services, the PCXMC Monte Carlo program for calculating patient X-ray doses, the AASI alpha spectrometry simulation tool, and digital platforms such as Sammio (legislation service), Stuklex (regulatory information), Julkari (open-access publication repository), an open data portal, an e-services platform for licensing and deviation reporting, and a web store for radon measurement devices.

The agency's revenue model is a hybrid of state budget allocation and statutorily-mandated supervision fees. For 2025, approximately 51% of funding (22.9M EUR) is sourced from the state budget via the Ministry of Social Affairs and Health, while approximately 49% (17.2M EUR) is collected as supervision fees from regulated organizations, of which 16.5M EUR comes from nuclear energy safety supervision. Additional service revenue of 1.3-2.2M EUR is generated through measurement, calibration, and international expert services, including capacity-building projects with the Saudi Arabian Nuclear Regulatory Authority and the African Commission on Nuclear Energy. Total operational budget for 2025 is approximately 44.5M EUR, up from approximately 40M EUR in 2022.

Name

Säteilyturvakeskus

Legal name

Säteilyturvakeskus

Website

https://stuk.fi

Company type

Private

Founded year

1958

Operating status

Operating

Short description

Säteilyturvakeskus (STUK) is Finland's independent regulatory authority for radiation and nuclear safety, supervising nuclear power plants, radiation practices, and environmental radiation under the Ministry of Social Affairs and Health.

Ownership category

akta.pro rank

Product category

Nuclear and Radiation Safety Regulation

NAICS

Administration of Environmental Quality Programs (924), Testing Laboratories and Services (54138), Environmental Consulting Services (541620)

SIC

Laboratory Analytical Instruments (3826)

akta.pro primary industry

Radiation Protection & Health Physics Services (ALARA programs, shielding design, RSO services) (EUAKAIAJ)

akta.pro secondary industries

Radiation Measurement, Dosimetry & Monitoring Services (Personal/environmental dosimetry, calibration labs) (EUAKAIAH), Radiation Detection Instruments & Systems (Portal monitors, spectrometers, contamination monitors) (EUAKAIAK), Nonproliferation Technology & Detection (radiation portal monitors, RPMs, spectroscopy, forensics) (EUAKAJAG), Radiological & Hazardous Materials Monitoring (Radiation, Asbestos, Lead) (EUAHACAJ), Nuclear Materials Testing, Assay & Characterization Services (NDA/NDE, radiochemistry, materials analysis) (EUAKAIAL)

Keywords

• Nuclear safety regulation
• Radiation monitoring services
• Regulatory oversight authority
• Radiation measurement calibration
• Nuclear energy supervision

Headquarters

HQ city

Vantaa

HQ country

Finland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure

Revenue model

1. State Budget Funding: Approximately 51% of funding (22.9 million EUR in 2025) comes from state budget through taxation, managed by the Ministry of Social Affairs and Health.
2. Supervision Fees: Approximately 49% of funding (17.2 million EUR in 2025) collected as supervision fees from regulated organizations. Majority (16.5 million) from nuclear energy safety supervision, remainder from radiation practice supervision.
3. Service Revenue: Service business including measurement services (radon measurement, radioactivity certificates, environmental sample analysis), calibration services, and international expert services. Approximately 1.3-2.2 million EUR annually.
4. Jointly Funded Activities: EU co-funded projects and international cooperation activities.

Distribution channels4 records

Marketing channels6 records

Core offering

Säteilyturvakeskus (STUK) is Finland's statutory radiation and nuclear safety authority that regulates nuclear facilities, supervises radiation practices, and monitors environmental radioactivity. It provides licensing, inspections, measurement and calibration services, expert advisory services, and emergency preparedness. Its offerings include digital platforms for legislation, regulatory information, publication repositories, and open data access to radiation monitoring data.

Product overview

Säteilyturvakeskus (STUK) is Finland's independent radiation and nuclear safety authority, not a commercial product company. Its offerings consist of regulatory services, measurement and calibration services, calculation tools, and digital platforms. The core services include: nuclear safety oversight of facilities (Loviisa, Olkiluoto, Posiva's encapsulation plant), radiation practice supervision, environmental radiation monitoring, and emergency preparedness. The product portfolio includes specialized calculation programs (PCXMC for X-ray dose calculation, AASI for alpha spectrometry), digital platforms (Sammio for legislation, Stuklex for regulatory information, Julkari for publications), open data services for radiation monitoring, and e-services for licensing and official communications. The organization operates as a government agency under the Ministry of Social Affairs and Health, providing expert services rather than commercial software products.

Differentiator

Problem solved

Functional benefit

Products and services

• Measurement and Calibration Services (Mittaus- ja kalibrointipalvelut) Comprehensive measurement and calibration services including sample radioactivity measurements, radiation meter calibration and testing, non-ionizing radiation testing, and irradiation services available to regulated entities and the public.
• PCXMC (Monte Carlo Program) A Monte Carlo-based computer program for calculating patient doses from X-ray examinations, used by medical physicists and healthcare professionals.
• AASI (Alpha Spectrometry Simulation) A program for simulating energy spectra in alpha spectrometry, used by radiation measurement professionals.
• Sammio (Legislation Service) Online platform providing radiation and nuclear safety legislation, regulatory guides, and regulatory information service for regulated entities and legal professionals.
• Stuklex (Legislative Information) Legislative information service providing access to STUK's regulations and guidance documents for regulated entities and the public.
• Julkari (Publication Repository) Open access publication repository for STUK's research reports, surveillance reports, and technical reports, available to researchers and the public.
• Avoin data (Open Data) Open data service providing access to radiation monitoring data and environmental radiation measurements from the national monitoring network, available to the public and researchers.
• STUK Web Store (STUKin verkkokauppa) Online store for purchasing radon measurement devices and related services, available to consumers and homeowners.
• STUK E-services (STUK asiointi) Electronic services portal for licensing applications, safety reports, and official communications with STUK, used by regulated entities for regulatory compliance processes.

Quantifiable outcome

• Zero nuclear safety incidents requiring emergency response in 2022
• +1 more outcomes

Segments3 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Seven partnerships are on record, tiered major and core.

• African Commission on Nuclear Energy (AFCONE)majorStrategic or Co-development Partner · 1 January 2023Training program for African countries' nuclear material control specialists. STUK serves as trainer and educator for nuclear safeguards professionals across Africa. Project temporarily suspended in late 2024.
• Saudi Arabian Nuclear Regulatory AuthoritymajorStrategic or Co-development Partner · 1 January 2014International expert services project to develop radiation and nuclear safety regulatory capacity in Saudi Arabia. Led development of competent regulatory authority.
• International Atomic Energy Agency (IAEA)coreStrategic or Co-development PartnerActive participation in IAEA international nuclear safety conventions, information exchange networks, and harmonization of inspection activities. Finnish regulatory cooperation through the INES system and international nuclear material control (safeguards) framework.
• European Commission / EuratomcoreStrategic or Co-development PartnerMembership in Euratom's nuclear material control and safeguards verification system. Participation in EU regulatory cooperation and nuclear safety directive implementation. Joint inspections with Euratom inspectors.
• Nordic Nuclear Safety Authority (NKS)coreStrategic or Co-development PartnerNordic cooperation forum for nuclear safety research, training, and best practice sharing among Nordic countries operating nuclear facilities.
• Finnish Customs (Tulli)coreStrategic or Co-development PartnerBorder control cooperation for radioactive materials. Joint monitoring strategy, shared situational awareness systems, and staff training for border radiation detection.
• Ministry of Social Affairs and Health (STM)coreStrategic or Co-development PartnerParent ministry providing performance agreement (tulossopimus) and budget oversight. STM is the line ministry for radiation and nuclear safety regulation in Finland.

Scale indicators13 records

Recent moves6 records

Expansion highlights3 records

Others

• International Atomic Energy Agency (IAEA): International nuclear safety and safeguards body. Not a direct competitor but the primary international partner for STUK and a peer in technical standards-setting, peer review missions, and global emergency response frameworks.
• Heads of the European Radiological protection Competent Authorities (HERCA): Association of European radiation protection authorities. STUK is an active member; HERCA is comparable as the coordinating platform where STUK exchanges inspection practices, harmonizes approaches, and engages in joint working groups.

Direct peers

• Office for Nuclear Regulation (ONR): UK's independent nuclear safety and security regulator. Comparable as an independent statutory authority overseeing nuclear facilities, radiation safety, and security, with similar funding model combining government grant and charge-based fees.
• Autorité de Sûreté Nucléaire (ASN): France's independent nuclear safety authority. Comparable as a specialized regulator covering NPPs, radiation sources, and radioactive waste with strong international standing and a similar supervision-fee revenue model.
• Canadian Nuclear Safety Commission (CNSC): Canada's federal nuclear regulator. Comparable as an independent regulatory body overseeing nuclear power plants, research reactors, uranium mining, and radiation source use, with similar licensing, inspection, and enforcement authority.
• Direktoratet for strålevern og atomsikkerhet (DSA): Norwegian radiation and nuclear safety regulator. Comparable in scope (radiation protection, emergency preparedness, environmental monitoring) and Nordic context, with similar international cooperation through NKS.
• Strålsäkerhetsmyndigheten (SSM): Sweden's national radiation and nuclear safety authority. Directly comparable as a Nordic peer regulator with overlapping mandate across radiation practice supervision, nuclear facility oversight, environmental monitoring, and international cooperation.
• Swiss Federal Nuclear Safety Inspectorate (ENSI): Switzerland's federal nuclear safety inspectorate. Comparable as a small specialized regulator overseeing NPPs, research reactors, and radioactive waste with similar technical depth and international cooperation profile.

Broad incumbents

• U.S. Nuclear Regulatory Commission (NRC): The largest dedicated nuclear regulator globally. Comparable in core mandate (NPP licensing, radiation protection, safeguards) but operates at much greater scale and scope than STUK; serves as a reference framework for many smaller national regulators.
• Bundesamt für Strahlenschutz (BfS): Germany's federal office for radiation protection. Comparable in radiation protection and environmental monitoring mandate, but operates in a broader policy role that includes nuclear phase-out oversight.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@sateilyturvakeskus
• Facebookfacebook.com/sateilyturvakeskus
• LinkedInlinkedin.com/company/stuk
• Instagraminstagram.com/stuk_fi

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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Frequently asked questions about Säteilyturvakeskus