What Mostalwar does

Mostostal Warszawa S.A. is one of the largest general contractors in Poland, founded in 1945 and headquartered in Warsaw at ul. Konstruktorska 12A, with shares listed on the Warsaw Stock Exchange under ticker PLMSTZW00018 and a fully paid-in share capital of 20,000,000 PLN. The company operates as a generalny wykonawca (general contractor) executing turnkey design-and-build projects across five core service lines: general construction (residential, office, public utility), industrial construction (production halls, steel structures), infrastructure and road construction (bridges, viaducts, tunnels, metro), ecological construction, and energy construction. The capital group, with 1,535 employees across subsidiaries Mostostal Płock, Mostostal Kielce, and AMK Kraków, also produces mineral-asphalt mixtures and provides equipment and transport services through its own workshops and advanced equipment fleet. Approximately 75% of operational revenue is committed to third-party services and materials procurement, indicating a sub-contracting-intensive cost structure typical of large Polish general contractors.

The company's revenue is generated primarily through competitive bidding on public tenders and direct negotiation with private clients for one-time design-and-build contracts, with no disclosed recurring or subscription pricing model. Notable recent contract wins include the 537.7 million PLN net Kraków Airport Terminal T6 expansion (the largest cubature contract in company history, signed May 2026), the 314.6 million PLN gross Prosecutor's Office complex in Katowice (November 2024), and the S19 Rzeszów Południe-Babica expressway section executed in joint venture with ACCIONA as part of the Via Carpatia corridor. The customer base is concentrated in Polish public-sector and institutional buyers — government agencies, universities, airports, and state-owned enterprises — alongside selective private developers and energy-sector clients such as Fortum Power and Heat Polska, where the company is positioning into decarbonization and near-zero energy building (nZEB) work as an adjacent growth vertical.

Name

Mostalwar

Legal name

Mostostal Warszawa S.A.

Website

https://mostostal.waw.pl

Company type

Public

Founded year

1945

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Mostostal Warszawa is a Warsaw-headquartered Polish general contractor (WSE: PLMSTZW00018) executing turnkey design-and-build projects across general, industrial, infrastructure/road, ecological, and energy construction for public-sector and institutional clients across Poland.

Ownership category

akta.pro rank

Product category

General Construction Contracting

NAICS

Architectural, Engineering, and Related Services (5413), Other Specialty Trade Contractors (2389)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540), Heavy Construction Other Than Bldg Const - Contractors (1600)

akta.pro primary industry

Public Works General Contracting (IMAFAAAG)

Keywords

• General construction services
• Industrial construction
• Infrastructure construction
• Energy construction
• Road construction

Headquarters

HQ city

Warszawa

HQ country

Poland

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Construction Contract Revenue: Revenue generated from general contracting services on design-and-build and turnkey contracts for complex construction projects including roads, bridges, rail infrastructure, energy facilities, and building construction. Approximately 75% of operational revenue is based on purchases of services and materials from suppliers.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels2 records

Core offering

Mostostal Warszawa S.A. is a Polish general construction contractor providing comprehensive construction services across general, industrial, infrastructure and road, ecological, and energy construction. The company also produces mineral-asphalt mixtures and operates equipment and transport services to support its construction projects. It serves public and private clients in Poland as a multi-disciplinary general contractor.

Product overview

Mostostal Warszawa is a construction and engineering group operating as a general contractor, offering a comprehensive portfolio of construction services across six main categories: general construction (residential, office, public buildings), industrial construction (large-scale facilities, steel structures), infrastructure and road construction (bridges, tunnels, metro), ecological construction (environmental facilities), and energy construction (turnkey power plants). The company also provides supplementary services including mineral-asphalt mixtures and equipment-transport services. The portfolio is organized as a unified construction offering with specialized divisions, supported by extensive equipment and technical infrastructure including own production workshops.

Differentiator

Problem solved

Functional benefit

Products and services

• General Construction (Budownictwo Ogólne) General construction services covering commercial and institutional building projects, delivered as a general contractor for public and private clients in Poland.
• Industrial Construction (Budownictwo Przemysłowe) Industrial construction services for factories, plants, and industrial facilities, serving industrial clients requiring specialized construction expertise.
• Infrastructure and Road Construction (Budownictwo Infrastrukturalne i Drogowe) Construction of roads and infrastructure projects for public sector clients and infrastructure developers in Poland.
• Ecological Construction (Budownictwo Ekologiczne) Ecological construction services focused on environmentally oriented construction projects, including environmental and sustainability-related infrastructure.
• Energy Construction (Budownictwo Energetyczne) Construction services for energy sector projects, including energy generation and distribution facilities, serving energy sector clients.
• Mineral-Asphalt Mixtures (Mieszanki Mineralno-Asfaltowe) Production of mineral-asphalt mixtures, the primary material for road construction, supporting both internal projects and external demand.
• Equipment and Transport Services (Usługi Sprzętowo-Transportowe) Equipment and transport services supporting construction projects, providing construction machinery and logistics to internal and external clients.

Quantifiable outcome

• Largest contract in company history: 537.7 million PLN net for Kraków Airport Terminal T6 expansion

Named customers12 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core and minor.

• ACCIONAcoreStrategic or Co-development Partner · 10 May 2026Joint implementation of the S19 Rzeszów Południe-Babica expressway section, which includes tunnel construction as part of the international Via Carpatia route. Mostostal Warszawa and ACCIONA are jointly executing this demanding infrastructure project.
• Mostostal PłockminorOthersSubsidiary in the capital group (Grupa Kapitałowa Mostostal Warszawa).
• Mostostal KielceminorOthersSubsidiary in the capital group (Grupa Kapitałowa Mostostal Warszawa).
• AMK KrakówminorOthersSubsidiary in the capital group (Grupa Kapitałowa Mostostal Warszawa).

Scale indicators6 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Porr: Austrian-headquartered European construction group operating in Poland across infrastructure, building and tunnelling. Comparable on complex civil works and competes with Mostostal on Via Carpatia-class road and tunnel projects.
• Skanska: Swedish-headquartered global construction and development group with established Polish operations in roads, bridges, commercial buildings and public infrastructure. A large incumbent competitor for the largest Polish tenders.
• Strabag: Austrian-headquartered European construction major with substantial Polish operations in transport infrastructure, building construction and civil engineering. Competes with Mostostal on highway, bridge and tunnel projects.

Direct peers

• Budimex: Poland's largest general construction contractor and WSE-listed peer. Competes head-to-head with Mostostal Warszawa for the same public infrastructure tenders (roads, bridges, airports, public buildings) under a similar design-and-build model.
• Erbud: WSE-listed Polish construction group active in commercial, industrial, public and energy construction with comparable mid-cap scale to Mostostal Warszawa. Overlaps on hospital, education and infrastructure tenders.
• Unibep: WSE-listed Polish general contractor active in residential, commercial and modular construction. Comparable in scale and bidder profile for mid-sized Polish public and private construction tenders.
• Polimex Mostostal: Closely named Polish general contractor with overlapping industrial, power, infrastructure and general-construction exposure. A direct domestic peer on Polish energy and public infrastructure tenders including EU-funded projects.
• Warbud: Major Polish general contractor controlled by France's Vinci Construction. Competes directly with Mostostal on commercial buildings, public works and infrastructure tenders in Poland.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries3 records

Funding overview

Funding rounds1 record

Investors1 record

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 Mostalwar