Nuclear Engineering

What Nuclear Engineering does

Nuclear Engineering Co., Ltd. (NECO) is a privately held Japanese technical services firm founded in March 1978 in Tokai Village, Ibaraki Prefecture, that provides specialized nuclear engineering and facility operations support to government-affiliated research institutions. The company delivers nine integrated service categories: research support for nuclear fusion programs (JT-60SA and ITER), facility operation and maintenance (J-PARC proton accelerator and HTTR high-temperature gas reactor), experimental and test apparatus management, radiation management, radioactive waste volume reduction (incineration, melting, high-pressure compression), proprietary steel square container sales (S-Ⅱ and S-Ⅲ types with 20kPa air-tightness certification), building construction/relocation/dismantling, custom equipment design and fabrication, and technical cooperation on Fukushima removed-soil disposal demonstration. Primary customers are Japan Atomic Energy Agency (JAEA), Quantum Science and Technology R&D Organization (QST), and the Ministry of the Environment, with all revenue derived from direct B2B contracts for embedded technical staffing and on-site service delivery at nuclear research sites.

The company employs 696 people across eight offices in Ibaraki, Fukushima, Gunma, and Aomori prefectures, with registered capital of ¥65 million and ISO9001 certification since 2005 covering equipment design, manufacturing, installation, inspection, maintenance, and decontamination operations. Revenue is generated primarily through professional services (dispatched technical personnel, contracted facility operations, and radiation management) supplemented by hardware sales of proprietary steel containers and one-time construction and equipment contracts. Go-to-market is exclusively direct enterprise field sales targeting government R&D procurement, with no channel partner or distribution intermediary model. The company has stated a strategic target of 1,000 employees by 2027 and a 100-year enterprise sustainability vision, supported by organic hiring through Mynavi recruitment, regional job fairs in Ibaraki/Fukushima, U-turn online events, and internship programs, alongside the NECO Technical School internal training infrastructure.

Competitive positioning rests on regulatory qualifications (general/specified construction licenses, radiation protection supervisor designations, ISO9001), nearly five decades of operational experience at Japan's premier nuclear research sites, proprietary certified container designs, and embedded-site staffing models that create switching costs for institutional customers. The company received the 73rd Electrical Science and Technology Encouragement Prize and Chairman's Award in 2025 for joint work with QST on ITER superconducting toroidal field coil development, signaling continued technical credibility in international fusion supply chain participation. Geographic expansion has continued with the Aomori Center (December 2024) and Takasaki Office in Gunma Prefecture (October 2025), extending footprint beyond the historical Tokai-Village cluster.

Name

Nuclear Engineering

Legal name

原子力エンジニアリング株式会社

Website

https://neco-net.co.jp

Company type

Private

Founded year

1978

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Nuclear Engineering Co., Ltd. (NECO) provides specialized technical services including facility operations, radiation management, radioactive waste processing, and proprietary steel container manufacturing for Japanese government nuclear research institutions, primarily JAEA and QST.

Ownership category

akta.pro rank

Product category

Nuclear Engineering Services

NAICS

Hazardous Waste Treatment and Disposal (562211), Remediation Services (562910)

SIC

Hazardous Waste Management (4955), Special Industry Machinery, Nec (3559)

akta.pro primary industry

Radioactive Waste Processing, Packaging & On-site Interim Storage (Decommissioning Waste) (EUAKAFAE)

akta.pro secondary industries

Waste conditioning, packaging & container systems (drums, casks, overpacks, canisters) (EUAKAGAC), Decontamination & Dismantling (D&D) of Nuclear Facilities (EUAKAFAB), Nuclear Materials Testing, Assay & Characterization Services (NDA/NDE, radiochemistry, materials analysis) (EUAKAIAL)

Keywords

• Nuclear engineering services
• Radioactive waste management
• Nuclear facility operations
• Radiation management services
• Nuclear research support

Headquarters

HQ city

Naka

HQ country

Japan

HQ region

Asia

Offices9 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Technical Services to Research Institutions: The company provides technical personnel services (dispatch/contracted staff) to major nuclear research institutions including JAEA and QST, covering facility operations, maintenance, radiation management, and research support. This is the primary and dominant revenue stream.
2. Steel Container Sales: Sale of proprietary steel square containers (S-Ⅲ type and S-Ⅳ type) for radioactive waste storage and transport. Revenue is generated through product sales to nuclear research institutions, primarily Japan Atomic Energy Agency (JAEA).
3. Construction and Equipment Services: Construction, relocation, decommissioning, and equipment design/fabrication services for nuclear facilities, including inspection and testing of various equipment and instruments.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

Nuclear Engineering Co., Ltd. (NECO) provides specialized technical services to Japanese nuclear research institutions, including facility operations and maintenance (J-PARC, HTTR), experimental apparatus management, radiation management, radioactive waste volume reduction, and nuclear fusion research support (JT-60SA, ITER). The company also designs and manufactures proprietary steel square containers (S-Ⅱ and S-Ⅲ types) for radioactive waste storage and conducts construction, relocation, and dismantling work at nuclear facilities.

Product overview

Nuclear Engineering Co., Ltd. (NECO) provides comprehensive nuclear engineering services through nine interconnected service areas. The core offerings include facility operation and maintenance for major research facilities like J-PARC and HTTR, experimental equipment operation management, radiation management, and radioactive waste management with volume reduction processing. NECO also manufactures and sells specialized steel square containers (S-Ⅲ and S-Ⅳ models) for radioactive waste storage. Additional services encompass research support for nuclear fusion projects (JT-60SA, ITER), building construction and dismantling operations, equipment design and manufacturing, and technical cooperation for contaminated soil disposal from Fukushima. The company maintains ISO9001 certification for its quality management system covering equipment design, manufacturing consignment, installation, inspection, maintenance, decontamination, and equipment sales.

Differentiator

Problem solved

Functional benefit

Products and services

• Research Support Services (研究支援業務) Technical support for nuclear fusion research projects including JT-60SA (Japan-EU joint) and ITER (international fusion reactor), supporting superconducting coil test equipment development and particle beam extraction experiments. Targeted at QST and other nuclear research institutions.
• Facility Operation and Maintenance (施設の運転保守) Operation and maintenance of complex nuclear research facilities including J-PARC linear accelerator and synchrotron facilities, High-Temperature Engineering Test Reactor (HTTR), substations, and HVAC equipment. Sold to JAEA and QST under direct service contracts.
• Experimental/Test Equipment Operation Management (実験・試験装置の運転管理) Operation and maintenance of various experimental and testing equipment for nuclear research and development, including experimental operations, monitoring, large containment vessel experimental equipment, and environmental sample analysis. Targeted at JAEA and QST research facilities.
• Radiation Management Services (放射線管理業務) Radiation measurement and management within and around reactor facilities, including environmental radiation measurement, contamination inspection, Ge detector measurement, and WBC internal exposure inspection. Targeted at nuclear research institutions and reactor operators.
• Radioactive Waste Management (放射性廃棄物管理業務) Volume reduction and stabilization processing of radioactive waste using high-reduction facilities, including incineration melting processing and high-pressure compression operations. Targeted at nuclear research institutions including JAEA.
• Steel Square Container S-Ⅱ Type (鋼製角型容器 S-Ⅱ型) Steel square container for efficient storage of radioactive waste materials. Can store approximately 8 drums worth of materials, features hermetic seal performance of 20kPa with no pressure change for 5+ minutes, and stacking strength of approximately 2.5t per tier. Targeted at nuclear research institutions, primarily JAEA.
• Steel Square Container S-Ⅲ Type (鋼製角型容器 S-Ⅲ型) Compact steel square container variant with dimensions approximately 1,380mm(W) x 1,100mm(D) x 1,170mm(H), weighing approximately 200kg per unit with cover weight of approximately 45kg per piece. Targeted at nuclear research institutions for radioactive waste storage.
• Equipment Design, Manufacturing and Inspection Services (各種設備・関連機器の設計・製作・点検検査作業) Design, manufacturing, and installation of nuclear-related equipment and devices, including power distribution equipment, fuel storage containers, waste containers, experimental jigs, shielding doors, control systems, and inspection/maintenance services. Targeted at nuclear research institutions.
• Building Construction, Relocation and Dismantling (建屋等の建設・移設・解体撤去作業) Relocation, dismantling, and decontamination work for nuclear-related facilities and equipment, radiation management, environmental measurement, and construction material sales including concrete, aggregate, and asphalt. Targeted at nuclear facility operators and government agencies.
• Contaminated Soil Disposal Demonstration Project (除去土壌の埋立処分に係る実証事業の技術協力) Technical cooperation for demonstration projects related to burial disposal of soil removed from decontamination following the TEPCO Fukushima Daiichi Nuclear Power Station accident. Targeted at the Ministry of the Environment, Japan, and Fukushima reconstruction agencies.

Quantifiable outcome

• Employee count grew from approximately 600 to 696 within a few years, targeting 1,000 employees as stated company goal
• +3 more outcomes

Named customers5 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Quantum Science and Technology Research and Development Organization (QST) (国立研究開発法人 量子科学技術研究開発機構)coreStrategic or Co-development Partner · 1 December 2025QST is a primary customer and strategic partner. NECO provides technical staffing and research support to QST facilities including JT-60SA (Japan-EU nuclear fusion project) and ITER (international fusion reactor project). NECO employee Kaku Takano co-received the 73rd Electrical Science and Technology Encouragement Prize with QST researchers for ITER superconducting toroidal field coil development.
• Japan Atomic Energy Agency (JAEA) (国立研究開発法人 日本原子力研究開発機構)coreStrategic or Co-development PartnerJAEA is the primary customer and strategic partner. NECO provides a wide range of services to JAEA including facility operations and maintenance (J-PARC, HTTR), radiation management, radioactive waste management, experimental apparatus management, and steel container procurement. JAEA is listed as a key transaction partner.
• Ministry of the Environment, Japan (環境省)coreStrategic or Co-development PartnerNECO provides technical cooperation for the Ministry of Environment's removed soil disposal demonstration project following the Fukushima Daiichi Nuclear Power Plant accident. This is a government-led environmental remediation initiative where NECO contributes technical expertise for safe disposal operations.
• Ibaraki Prefecture and Local GovernmentsminorStrategic or Co-development PartnerIbaraki Prefecture and local municipalities in东海村, 那珂市, and 大洗町 are institutional partners. NECO operates in the Tokai Village area where JAEA facilities are concentrated and contributes to regional employment and economic development through participation in local job fairs and workforce development initiatives.

Scale indicators4 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• IHI Corporation: Japanese industrial manufacturer with nuclear component and equipment offerings. Comparable to NECO's equipment design/fabrication work for nuclear facilities, though operating across a much broader industrial portfolio.
• Mitsubishi Heavy Industries: Japan's largest nuclear EPC and component supplier, operating across PWR, fuel cycle, and decommissioning. Comparable to NECO as a Japanese nuclear services incumbent, though far broader in scale and scope than NECO's specialized research-facility focus.
• Toshiba Energy Systems & Solutions: Provides nuclear power plant systems, fuel, and services in Japan. Comparable to NECO as a Japan-based nuclear services incumbent offering equipment manufacturing and facility support, though operating across a wider product portfolio.
• Framatome: Global nuclear reactor services, fuel, and instrumentation provider with significant installed base support. Comparable to NECO's ITER-related instrumentation and fusion technical support work, though at vastly larger scale.
• Jacobs Solutions: Major global provider of nuclear technical services, decommissioning, and waste management to government and commercial clients. Comparable to NECO in core service lines (D&D, waste, facility ops) but at multinational scale.
• Hitachi (Hitachi-GE Nuclear Energy): Operates BWR nuclear systems and services in Japan. Comparable as a Japanese nuclear services incumbent with overlap to NECO's facility operations and maintenance work for research reactors, though at a substantially larger scale.

Direct peers

• AtkinsRéalis (formerly SNC-Lavalin): Global nuclear engineering services firm covering facility operations, waste management, and decommissioning. Comparable to NECO's nuclear technical services model, though serving CANDU and international reactor fleets rather than Japanese research facilities.
• EnergySolutions: U.S. firm specializing in nuclear decommissioning, radioactive waste processing, and facility operations. Closely comparable to NECO's waste volume reduction, container management, and decontamination services, though focused on U.S. commercial and government sites.
• Studsvik: Swedish nuclear services company providing fuel and waste management, decommissioning, and consultancy. Comparable to NECO's waste processing and technical services portfolio, with similar mid-size specialized positioning.
• Mirion Technologies: Specializes in radiation detection, measurement, and monitoring instrumentation for nuclear and radiological applications. Comparable to NECO's radiation management services and Ge detector measurement activities.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 Nuclear Engineering