TVO Nuclear Services Oy Ltd
TVO Nuclear Services Oy Ltd (TVONS) is a Finnish nuclear industry consultancy and wholly-owned subsidiary of TVO, providing expert advisory on new nuclear builds (including SMRs), plant operations, lifetime management, waste management, and nuclear safety to operators, SMR developers, and governments across the Nordic and Baltic regions.
- Company typePrivate
- Founded-
- HeadquartersEurajoki, Finland
- Headcount1–10
- GTM typeB2B
- OfferingServices
What TVO Nuclear Services Oy Ltd does
TVO Nuclear Services Oy Ltd (TVONS) is a Finnish private limited company and wholly-owned subsidiary of Teollisuuden Voima Oyj (TVO), headquartered at the Olkiluoto nuclear power plant site in Eurajoki, Finland, with a satellite office in Helsinki. Founded in 1998, the company is a specialized B2B nuclear industry consultancy that commercializes TVO's approximately 50 years of accumulated nuclear operating know-how, including 40 years of Boiling Water Reactor (BWR) operational experience, 25 years of Low and Intermediate Level Waste (LILW) repository operations, and direct lessons learned from the OL3 EPR construction project. With only six employees, TVONS functions as a high-leverage advisory vehicle rather than a scaled consulting firm.
The company organizes its offering into five service modules: New Built Projects Services (advisory for nuclear power plant construction including SMRs), Performance Improvement Services (operations, maintenance, and plant lifetime management), Waste Management Services (drawing on LILW repository expertise), Nuclear Safety Services (based on BWR operational track record), and an Accommodation Village facility for personnel working at Olkiluoto. TVONS does not build software products or technology platforms; its core asset is human expertise and reference credibility from operating Finnish nuclear assets, including a connection to Posiva's world-first high-level waste geological disposal facility (60% TVO-owned).
TVONS operates an enterprise field sales motion targeting nuclear power operators, SMR developers, and governments undertaking national nuclear programs, with disclosed engagements spanning Finland, Norway, Estonia, and Poland. Revenue is generated through professional services consulting fees and is not publicly disclosed; the client base is concentrated in a small number of multi-year strategic advisory contracts. The company has no independent external shareholders, and its expansion strategy is anchored in Nordic-Baltic-CEE nuclear new-build and SMR advisory mandates signed between 2023 and 2026.
TVO Nuclear Services Oy Ltd firmographics
Firmographics- Name
- TVO Nuclear Services Oy Ltd
- Legal name
- TVO Nuclear Services Oy
- Website
- https://tvons.fi
- Company type
- Private
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- TVO Nuclear Services Oy Ltd (TVONS) is a Finnish nuclear industry consultancy and wholly-owned subsidiary of TVO, providing expert advisory on new nuclear builds (including SMRs), plant operations, lifetime management, waste management, and nuclear safety to operators, SMR developers, and governments across the Nordic and Baltic regions.
- Ownership category
- akta.pro rank
TVO Nuclear Services Oy Ltd industry classification
Industry- Product category
- Nuclear Power Consulting and Engineering Services
- NAICS
- Nuclear Electric Power Generation (221113)
- akta.pro primary industry
- Nuclear Plant O&M Services (EUAEAGAC)
- akta.pro secondary industry
- Control Room, Human Factors & Operator Support Systems (HMI, Alarms, Procedures) (EUAKADAK)
Keywords
Where TVO Nuclear Services Oy Ltd is headquartered
LocationHeadquarters
- HQ city
- Eurajoki
- HQ country
- Finland
- HQ region
- Europe
Offices2 records
Markets served
TVO Nuclear Services Oy Ltd business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales
Revenue model
- Nuclear Consulting Services: Expert advisory and consulting services to nuclear power operators, SMR developers, and governments seeking nuclear energy expertise
Go-to-market motion1 record
Distribution channels1 record
Marketing channels2 records
TVO Nuclear Services Oy Ltd product offering
Product offeringCore offering
TVO Nuclear Services Oy Ltd (TVONS) is a Finland-based nuclear consulting subsidiary of Teollisuuden Voima Oyj (TVO) that sells expert advisory and project services to nuclear power operators, Small Modular Reactor (SMR) developers, and governments. Its service portfolio covers new nuclear build advisory, performance improvement and plant lifetime management, nuclear waste management (LILW repositories), nuclear safety consulting grounded in Boiling Water Reactor (BWR) operations, and on-site accommodation facilities at the Olkiluoto nuclear site.
Product overview
TVO Nuclear Services Oy Ltd (TVONS) is a subsidiary of Teollisuuden Voima Oyj (TVO) that provides nuclear industry consultation and development services. Rather than a traditional product company, TVONS offers a portfolio of specialized nuclear services organized into five main modules: New Built Projects Services (covering NPP and SMR advisory), Performance Improvement Services (operations, maintenance, plant lifetime management), Waste Management Services, Nuclear Safety Services, and Accommodation Village facilities. These services leverage TVO's extensive experience including 50 years in the nuclear industry, 40 years of BWR operational experience, and 25 years of LILW repository expertise.
Differentiator
Problem solved
Functional benefit
Products and services
- New Built Projects Services Consultation and advisory services for new nuclear power plant construction, including conventional NPP projects and Small Modular Reactor (SMR) projects, drawing on TVO's tendering, sourcing, and construction expertise from the OL3 project.
- Performance Improvement Services Operations, maintenance, and plant lifetime management advisory aimed at optimizing nuclear power plant performance and extending operational lifespan.
- Waste Management Services Nuclear waste management advisory services drawing on 25 years of TVO experience with Low and Intermediate Level Waste (LILW) repository construction and operation, plus high-level waste disposal know-how via Posiva.
- Nuclear Safety Services Nuclear safety consulting and advisory services based on TVO's approximately 40 years of Boiling Water Reactor (BWR) operational experience.
- Accommodation Village Services On-site accommodation facilities provided to personnel working at the Olkiluoto nuclear power plant.
Quantifiable outcome
- World's first final disposal facility for high-level nuclear waste built by Posiva (60% TVO owned)
Companies that use TVO Nuclear Services Oy Ltd
Customer profileNamed customers3 records
Segments3 records
Ideal customer profiles2 records
TVO Nuclear Services Oy Ltd technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
TVO Nuclear Services Oy Ltd partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered core.
- Norwegian Nuclear LtdcoreTVONS signed a Memorandum of Understanding with Norwegian Nuclear Ltd for consultation on the construction of sustainable and safe nuclear power in Norway. The partnership provides Norwegian Nuclear access to TVO's extensive nuclear expertise, including experience in safe operation of nuclear power plants and the entire nuclear lifecycle including waste management.
- Fermi EnergiacoreTVO Nuclear Services and Estonia's Fermi Energia signed agreement on SMR project advisory services. This partnership supports Fermi Energia's SMR development plans in Estonia.
- FortumcoreTVO and Fortum partnership to provide expert services for Poland's nuclear power program, leveraging combined nuclear expertise for international nuclear development projects.
Scale indicators3 records
Recent moves5 records
Expansion highlights4 records
TVO Nuclear Services Oy Ltd competitors and assessment
Company assessmentBroad incumbents
- Bechtel: Major global EPC contractor with nuclear new-build and large-scale project management capabilities. Competes with TVONS on international new-build advisory mandates, particularly for large greenfield projects.
- Worley: Global energy, chemicals, and resources engineering firm with a dedicated nuclear services line covering advisory, operations support, and decommissioning. Overlaps with TVONS in serving utilities on operations, lifetime extension, and new-build support.
- AtkinsRéalis: Global engineering services firm with a sizable nuclear practice (formerly Candu Energy, SNC-Lavalin). Competes with TVONS for international new-build advisory mandates, though at vastly greater scale and with proprietary reactor IP.
- Amentum: US-based engineering and technical services firm with deep nuclear services heritage (post Jacobs/AECOM spin-merger). Competes with TVONS for government and utility nuclear advisory and operations support contracts internationally.
Direct peers
- AFRY: Nordic-headquartered engineering consultancy with a significant nuclear services practice covering operations, safety, and new-build advisory. Comparable to TVONS in regional positioning and breadth of nuclear consulting services to operators and utilities.
- Assystem: Independent engineering group specialized in nuclear project management, safety, and new-build advisory, with strong European footprint. Closely comparable to TVONS in target customers and consulting-led delivery model for nuclear new builds.
- Tractebel: Engie's nuclear engineering consultancy offering advisory, safety, waste management, and new-build services globally. Directly comparable to TVONS as a professional services arm supporting nuclear operators and new-build developers across the full lifecycle.
Regional players
- Studsvik: Swedish-headquartered nuclear services firm offering consulting, fuel and waste management, and operational support primarily across the Nordic and European markets. Highly comparable regional peer to TVONS in scope and customer base.
- VTT Technical Research Centre of Finland: Finland's national research institution with deep nuclear safety, materials, and reactor technology expertise, providing advisory to operators and regulators. Comparable to TVONS as a domestic Finnish nuclear expertise provider with government and utility clients.
Emerging players
- Rolls-Royce SMR: UK-based SMR developer targeting European deployment; overlaps with TVONS as both potential client (for Nordic/Baltic site advisory) and competitor in SMR-related advisory services in Europe.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks6 records
Key highlights5 records
Customer concentration
TVO Nuclear Services Oy Ltd social profiles
Digital presenceTVO Nuclear Services Oy Ltd financial estimates
Financial estimateRevenue estimate
Valuation estimate
TVO Nuclear Services Oy Ltd leadership team
Management profileNumber of profiles
Profiles2 records
TVO Nuclear Services Oy Ltd funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
TVO Nuclear Services Oy Ltd 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 TVO Nuclear Services Oy Ltd
What does TVO Nuclear Services Oy Ltd do?
TVO Nuclear Services Oy Ltd (TVONS) is a Finland-based nuclear consulting subsidiary of Teollisuuden Voima Oyj (TVO) that sells expert advisory and project services to nuclear power operators, Small Modular Reactor (SMR) developers, and governments. Its service portfolio covers new nuclear build advisory, performance improvement and plant lifetime management, nuclear waste management (LILW repositories), nuclear safety consulting grounded in Boiling Water Reactor (BWR) operations, and on-site accommodation facilities at the Olkiluoto nuclear site.
Is TVO Nuclear Services Oy Ltd a public or private company?
TVO Nuclear Services Oy Ltd is a private company. It is classified as corporate owned and is currently operating.
When was TVO Nuclear Services Oy Ltd founded?
TVO Nuclear Services Oy Ltd was founded in -1. It employs 1 to 10 people.
Where is TVO Nuclear Services Oy Ltd based?
TVO Nuclear Services Oy Ltd is headquartered in Eurajoki, Finland, in the Europe region.
How does TVO Nuclear Services Oy Ltd make money?
One revenue line is on record: nuclear Consulting Services.
Who are TVO Nuclear Services Oy Ltd's main competitors?
Broad incumbents on record are Bechtel, Worley, AtkinsRéalis and Amentum. Direct peers are AFRY, Assystem and Tractebel. Regional players are Studsvik and VTT Technical Research Centre of Finland. Rolls-Royce SMR is listed as an emerging player.
Does TVO Nuclear Services Oy Ltd have an API?
No public API is recorded for TVO Nuclear Services Oy Ltd.
What industry is TVO Nuclear Services Oy Ltd in?
TVO Nuclear Services Oy Ltd's product category is Nuclear Power Consulting and Engineering Services. Its primary akta.pro industry code is EUAEAGAC, Nuclear Plant O&M Services, with a secondary code of EUAKADAK, Control Room, Human Factors & Operator Support Systems (HMI, Alarms, Procedures). Its NAICS code is 221113.