zio-podolsk

What zio-podolsk does

ZiO-Podolsk (АО «ЗиО-Подольск») is a Russian heavy industrial manufacturer of heat exchange equipment and nuclear reactor components, operating as part of the Machine-Building Division of Rosatom State Corporation through its holding company Atomenergomash. Headquartered in Podolsk, Moscow Oblast, the company is a city-forming enterprise and traces its nuclear equipment legacy to 1954 when it supplied equipment for the world's first nuclear power plant in Obninsk. The company operates three core product lines: (1) nuclear power plant equipment including steam generators, separator-superheaters, centrifugal separators, heat exchangers, high-pressure and low-pressure heaters, filters, auxiliary piping, and modular thermal insulation; (2) thermal power equipment including steam boilers, hot-water boilers, waste heat recovery boilers, waste-to-energy plant equipment, district heating heaters, and modernization services; and (3) oil, gas, and petrochemical equipment including heat exchange units, column/distillation apparatus, process coils, pressure vessels, regenerators, and scrubbers. The company additionally manufactures reactor vessel bodies and performs control assembly of RITM-200 small modular reactor units for nuclear icebreakers (Project 22220 fleet) and land-based small nuclear power plants, making it the world's only serial producer of compact nuclear reactors.

Revenue is generated through hardware sales via direct enterprise contracts and Rosatom's centralized procurement system (zakupki.rosatom.ru), with custom quote-based pricing for nuclear and power generation equipment. The primary customer base is the Russian nuclear power industry, where ZIO-Podolsk claims 100% market share for heat exchange equipment across all Russian nuclear power plants. Secondary segments include the thermal power industry, oil/gas/petrochemical industry, the nuclear icebreaker fleet (Baltic Shipyard for Project 22220 vessels), and international nuclear projects including Akkuyu NPP (Turkey), Ruppur NPP (Bangladesh), Kudankulam NPP (India), and small modular reactors in Yakutia and Uzbekistan. The company also produces first-domestic LNG equipment. Distribution is exclusively B2B direct sales through Rosatom's procurement infrastructure and direct enterprise relationships, with go-to-market centered on technical capability demonstrations, participation in industry forums, and corporate communications through Rosatom media channels.

Name

zio-podolsk

Legal name

АО «ЗиО-Подольск» (ZiO-Podolsk JSC)

Website

https://aozio.ru

Company type

Public

Founded year

1945

Operating status

Operating

Short description

ZiO-Podolsk (ЗиО-Подольск) is a Russian heavy industrial manufacturer of heat exchange equipment and nuclear reactor components, serving nuclear power plants, thermal power facilities, oil/gas/petrochemical industries, and the nuclear icebreaker fleet as part of Rosatom's Machine-Building Division. It is the world's only serial producer of compact nuclear reactors (RITM-200).

Ownership category

akta.pro rank

Product category

Industrial Equipment Manufacturing

NAICS

Power Boiler and Heat Exchanger Manufacturing (332410), Turbine and Turbine Generator Set Units Manufacturing (333611)

SIC

Fabricated Plate Work (Boiler Shops) (3443)

akta.pro primary industry

Reactor Vessel, Internals & Primary Circuit Components (RPV, piping, pumps, valves) (EUAKADAE)

akta.pro secondary industries

Nuclear Steam Supply System Components & Turbine Islands (IMAHAFAG), Gen IV / Advanced Reactor Systems (SFR, LFR, GFR, MSR, HTGR, Microreactors) (EUAKADAC)

Keywords

• Nuclear power equipment
• Heat exchangers
• Steam boilers
• Petrochemical equipment
• Reactor manufacturing

Headquarters

HQ city

Podolsk

HQ country

Russia

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Nuclear Power Equipment: Manufacturing and supply of critical equipment for nuclear power plants including reactors, steam generators, heat exchangers, separators, and pressure heaters. Equipment supplied to all Russian nuclear power plants.
2. Thermal Power Equipment: Production of steam boilers, hot water boilers, and utility boilers for thermal power plants.
3. Nuclear Icebreaker Equipment: Manufacturing reactor units RITM-200 for nuclear icebreaker fleet including Arktika, Siberia, Yakutia, Chukotka, Leningrad, and Stalingrad.
4. Oil and Gas Industry Equipment: Supply of heat exchange equipment, column apparatus, product coils, tank apparatus for petrochemical industry.
5. LNG Equipment: First domestic equipment for liquefied natural gas production.
6. Small Nuclear Power Plant Equipment: Reactor units for small modular nuclear power plants in Yakutia and Uzbekistan.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

ZiO-Podolsk manufactures heavy industrial heat exchange equipment and nuclear reactor components, including steam generators, separator-superheaters, boilers, heat exchangers, and reactor vessel bodies. The company supplies this equipment to nuclear power plants, thermal power plants, oil/gas/petrochemical facilities, and nuclear icebreaker shipbuilders, and is the sole serial producer of RITM-200 small modular reactor units used in Russia's nuclear icebreaker fleet and land-based small NPPs.

Product overview

АО «ЗиО-Подольск» (ZiO-Podolsk) is a heavy industrial manufacturing enterprise that produces high-complexity heat exchange equipment and nuclear reactor components across three interconnected product families: (1) Equipment for Nuclear Power — including steam generators, separator-superheaters, centrifugal separators, heat exchangers, high-pressure and low-pressure heaters, filters, auxiliary piping, and modular removable thermal insulation; (2) Equipment for Thermal Energy — covering steam boilers, hot-water boilers, waste-heat recovery (utilization) boilers, waste-to-energy plant equipment, district heating water heaters, and dust-gas-duct valves, plus boiler modernization services; and (3) Equipment for Gas/Petrochemical Industry — encompassing heat exchange units, column/distillation apparatus, process coils, pressure vessels, regenerators, and dust collectors/scrubbers. Additionally, the company manufactures RITM-200 small modular reactor units for nuclear-powered icebreakers (Project 22220 fleet) and land-based small nuclear power plants, serving as the sole producer of reactor vessel bodies and performing control assembly. The product portfolio is unified by core thermal-fluid engineering competencies, with all equipment sharing heat transfer, separation, pressure boundary, and material technology capabilities. The company claims that 100% of Russia's nuclear power plants — starting from the world's first nuclear power plant in Obninsk — are equipped with ZiO-Podolsk products.

Differentiator

Problem solved

Functional benefit

Products and services

• Separator-Superheaters (Сепараторы-пароперегреватели) Separator-superheater units for nuclear power plant applications, used to separate steam from moisture and superheat steam for improved turbine efficiency.
• Steam Generators (Парогенераторы)

Quantifiable outcome

• 100% market share in Russian nuclear power plant heat exchange equipment
• +2 more outcomes

Named customers8 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Eight partnerships are on record, tiered core, major and minor.

• Rosatom State Nuclear Energy CorporationcoreStrategic or Co-development PartnerZIO-Podolsk is an integral part of the Machine-building Division of Rosatom State Corporation. The company operates under the unified management of Rosatom and participates in strategic projects for the development of nuclear energy, Arctic shipping, and small modular reactor technology. The Machine-building Division is the largest energy machine-building holding in Russia, serving as the main supplier of reactor island equipment for all Russian nuclear power plants.
• Atomenergomash (AEM Group)coreStrategic or Co-development PartnerAtomenergomash is the parent holding company for ZIO-Podolsk within the Rosatom machine-building division. The website domain aem-group.ru is officially associated with AEM, and ZIO-Podolsk is listed as part of the AEM Group enterprise structure.
• OKBM AfrikantovcoreTechnology or IntegrationOKBM Afrikantov serves as the designer, integrated supplier, and manufacturer of in-vessel components for RITM-200 and RITM-400 reactor installations. ZIO-Podolsk manufactures reactor bodies and performs control assembly for these units. This is a critical technological partnership in the RITM reactor production chain.
• Baltic ShipyardcoreStrategic or Co-development PartnerBaltic Shipyard (St. Petersburg) manufactures nuclear icebreakers Project 22220 and receives RITM-200 reactor units from ZIO-Podolsk for installation in vessels Arktika, Siberia, Yakutia, Chukotka, Leningrad, and Stalingrad.
• Machine-building Division EnterprisesmajorTechnology or IntegrationMultiple enterprises within the Machine-building Division contribute to RITM reactor production: St. Petersburg produces metallurgical blanks, Nizhny Novgorod manufactures in-vessel devices, Podolsk produces reactor bodies. This coordinated production chain enables complete domestic manufacturing of nuclear reactors.
• Moscow Polytechnical University (Moskovsky Politekhnicheskiy Universitet)minorChannel Partner/ Reseller/ DistributorZIO-Podolsk partnered with Moscow Polytechnical University during 2026 admission campaign, offering 16 targeted education places in machine-building specialties with guaranteed employment.
• Podolsk College named after NikulinminorChannel Partner/ Reseller/ DistributorPartnership with local college for targeted training programs, providing students with production practice, additional scholarships, mentorship, and guaranteed employment.
• Engineers of the Future ForumminorChannel Partner/ Reseller/ DistributorInternational Youth Industrial Forum providing platform for ZIO-Podolsk experts to speak on professional development topics and attract young talent to the machine-building industry.

Scale indicators7 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• OKBM Afrikantov: Sister Rosatom machine-building enterprise that designs RITM-200/400 reactors and manufactures in-vessel components. Co-produces reactor units with ZiO-Podolsk under the same Rosatom division.

Broad incumbents

• Atomenergomash (AEM Group): Parent holding company of ZiO-Podolsk within Rosatom's Machine-Building Division; operates multiple heavy equipment manufacturers across nuclear, thermal, and oil & gas equipment, comparable at the holding-company level.
• Westinghouse Electric Company: Global nuclear steam supply system OEM providing reactor vessels, steam generators, and pressurizers comparable to ZiO-Podolsk's nuclear equipment portfolio, though serving Western markets.
• Framatome: French nuclear reactor OEM supplying reactor vessels, steam generators, and primary circuit components — directly comparable product portfolio to ZiO-Podolsk's nuclear equipment business.
• Doosan Enerbility: South Korean manufacturer of nuclear steam generators, reactor vessels, and turbine equipment for both domestic and export NPP projects; comparable nuclear equipment manufacturer with strong Asian market presence.
• Mitsubishi Heavy Industries: Japanese industrial conglomerate manufacturing nuclear and thermal power equipment including reactor components, steam generators, and turbines — comparable in scale and product breadth to ZiO-Podolsk across nuclear and thermal power.
• Babcock & Wilcox: US-based industrial steam generation and heat transfer equipment manufacturer serving power generation and industrial markets; directly comparable to ZiO-Podolsk's thermal power boiler and heat exchange equipment business.

Regional players

• China First Heavy Industries (CFHI): Chinese nuclear-grade pressure vessel and reactor component manufacturer serving domestic Chinese nuclear program; comparable nuclear component manufacturing capability though primarily focused on Chinese domestic market.
• Shanghai Electric: Chinese manufacturer of nuclear and thermal power equipment including reactor internals, steam generators, and turbine equipment; comparable product portfolio serving primarily Chinese and emerging-market nuclear projects.

Emerging players

• Alfa Laval: Swedish specialist in heat exchangers, separators, and fluid handling equipment for power, petrochemical, and industrial applications; overlapping product range with ZiO-Podolsk's heat exchange and process equipment portfolio across multiple verticals.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 zio-podolsk