A steel frames production enterprise

Western High-Speed Diameter

A multinational transportation project

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Metal structures for buildings & construction

We carry out our steel structures for use in an industrial and civil construction of any complexity

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Roof steelworks

Manufacturing and installation

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year of market presence

309 627

tons of total output


successful projects


tons of constructions per month

Plant at a glance

ZMK Lenmontag (which is a Russian abbreviation for metalworks facility) firmly stands as one of the major leaders of steel frames industry in St. Petersburg and across the North-West of Russia. Involving the most modern technology, Lenmontag Steelworks enjoys the capability to supply its clients with metal solutions in the fields of bridge, road and general construction.

The constant update of heavy equipment and intellectual reserves makes ZMK Lenmontag a suitable partner even for the extremely complicated or unique requests. Our guarantees for the quality level of steel frame engineering are based on a strict quality management system, as the enterprise is certified after the Russian GOST and international standards ISO 9001:2015, ISO 9001:2015.

Our projects

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Люки для РЖД_2

Hatches for Russian Railways

Lenmontag Steelworks successfully completed the manufacturing of all-metal steel hatches…

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Банковский мост_2

Bank Bridge steel elements

Lenmontag Steelworks accepted and fullfilled the contract order for some…

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СММ Ограждения

Dust protectors for the Sea Port

Lenmontag Steelworks is to produce steel frames of a dust-protecting…

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Пролётные строения моста пути СПБ-Москва

Spans of railroad bridges on the route St. Petersburg to Moscow

Lenmontag Steelworks joined the manufacturing of span structures for the…

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Швейная фабрика Боско. Производство металлоконструкций Ленмонтаж

Bosco garment plant

Lenmontag Steelworks produces metal building structures for the production workshop…

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Coastal structures of nuclear power plant in Pevek

Lenmontag Steelworks is now manufacturing metal structures for a large…

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Изготовление и монтаж металлоконструкций Нововоронежской АЭС

Novovoronezhskaya Nuclear Plant

Manufacturing and installation of metal structures for the transport portal…

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Мостовые металлоконструкции ЗМК "Ленмонтаж"

Span structures of railroad bridge for Germes Company

Lenmontag Steelworks completed the delivery of large-tonnage span structures for…

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The services

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Steel frame design & development
Steel detailing drawings
Plasma cutting
H-beams manufacturing and welding
Steel cutting
Air blasting operations
Corrosion surface protection
Quality supervision
Steel portal frame building assembly


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Happy new year 2019!


As always, Lenmontag Steelworks congratulates its employees and partners with a Happy New Year! We wish you and your families all the best, successes and…

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Construction Professionals Day!


As always, Lenmontag Steelworks congratulates its employees and partners with a Construction Professionals Day! We wish you both personal and corporate successes and achievements. We…

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Bridge elements for Hermes LLC


Lenmontag Steelworks has delivered heavy-weight span structures for an Ust-Luga railroad bridge, being a part of a reconstruction project of the eastern railroad line from…

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8 march


Lenmontag Steelworks congratulates the beautiful half of us with the Spring Holidays and the International women's day! To all of our girls, wives, mothers, and…

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Steel elements for hazardous environments


Lenmontag Steelworks are to deliver and instal steel elements for a large ore processing factory in Russia. Special requirements for such kind of activity are…

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Happy new year 2018!


As always, Lenmontag Steelworks congratulates its employees and partners with a Happy New Year! We wish you and your families all the best, successes and…

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Lenmontag heads to Arctic Circle


Today Lenmontag Steelworks was trusted with a very special order set in the Russian Far North, deep inside the Arctic area. Our client is a…

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В рамках развития нашего завода стартовал проект по внедрению системы 1С:ERP Управление предприятием 2. «1С:ERP Управление предприятием 2» («1C:ERP») — это инновационное и эффективное решение…

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