GRK Infra Oy

What GRK Infra Oy does

GRK Infra Oyj (Helsinki: GRK) is a Finnish infrastructure construction group, founded in 1983 and headquartered in Vantaa, Finland, that designs, builds, and maintains roads, railways, tramways, bridges, environmental infrastructure, and energy-related civil works. It operates in Finland, Sweden, and Estonia through wholly-owned subsidiaries GRK Suomi Oy, GRK Sverige AB, GRK Eesti AS, GRK Rail Oy, GRK Road Oy, and the recently acquired Keski-Suomen Betonirakenne Oy (KSBR) plus Estonian railway-electrical specialist A-Kaabel OÜ. The customer base is dominated by public-sector transport infrastructure agencies, notably the Finnish Transport Infrastructure Agency (Väylävirasto), the Swedish Transport Administration (Trafikverket), the Estonian Transport Administration, and municipalities such as Vantaa and Turku, with private-sector industrial work for Stegra (green hydrogen/steel) supplementing demand.

Revenue is generated primarily through large-scale, project-based construction contracts awarded via competitive public procurement, direct negotiations, and long-term alliance partnerships, with durations from several months to multiple years and individual contract values ranging from single-digit millions to more than EUR 100 million. Four core service lines drive delivery: civil engineering and paving (Taito- ja väylärakentaminen), rail business covering track, signalling, electrification, catenary and metro systems (Rataliiketoiminta), environmental technology and circular-economy recycling (Ympäristöteknologia), and power/industrial construction (Power-liiketoiminta) covering data centers and industrial facilities. Alliance delivery models such as Kuura-allianssi and Ralli-allianssi for railway maintenance and the Vantaa tramway eastern section embed GRK with public clients and create recurring renewal revenue alongside new-build work. FY2025 revenue was EUR 872.3M (+19.7% YoY) with an adjusted operating profit of EUR 58.2M (6.7% margin), a record EUR 883.1M order backlog at Q1 2026, and a net cash position of EUR 246.1M against a 55.1% equity ratio.

Name

GRK Infra Oy

Legal name

GRK Infra Oyj

Website

https://grk.fi

Company type

Public

Founded year

2020

Operating status

Operating

Headcount range

501–1,000 employees

Short description

GRK Infra Oyj is a Finnish publicly listed infrastructure construction group that designs, builds, and maintains roads, railways, tramways, bridges, and environmental and energy infrastructure for government transport agencies and private industrial clients across Finland, Sweden, and Estonia.

Ownership category

akta.pro rank

Product category

Infrastructure Construction Services

NAICS

Highway, Street, and Bridge Construction (23731), Power and Communication Line and Related Structures Construction (237130)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600)

akta.pro primary industry

Railway Track & Civil Works Construction (Ballast, Slab Track, Alignment) (IMAFAFAA)

Keywords

• Infrastructure construction
• Railway construction services
• Road construction
• Environmental engineering
• Tramway construction

Headquarters

HQ city

Vantaa

HQ country

Finland

HQ region

Europe

Offices10 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Marketing or Sales

Revenue model

1. Infrastructure construction services: GRK generates revenue through large-scale infrastructure construction projects including roads, railways, tramways, bridges, and environmental technology. Revenue is project-based with long-term contracts ranging from several months to multiple years. The company reported EUR 872.3 million revenue in 2025, a 19.7% increase from 2024.
2. Concrete construction and industrial building: Through the acquisition of Keski-Suomen Betonirakenne (KSBR), GRK expanded into specialized concrete construction and industrial building solutions, including wind turbine infrastructure and energy sector projects. KSBR contributed EUR 124 million revenue in 2025.
3. Equipment rental and machinery services: KSBR Rent Oy provides machinery and equipment rental, maintenance, and servicing as part of the KSBR group services.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels6 records

Core offering

GRK Infra Oy designs, constructs, and maintains transport and civil infrastructure including roads, railways, tramways, bridges, and metro systems across Finland, Sweden, and Estonia. The company delivers four core service lines: civil engineering and road paving, rail business (track construction, maintenance, electrification, and signalling), environmental technology and circular economy, and power/industrial construction. Revenue is generated primarily through long-term project-based contracts awarded via competitive public tenders and direct private sector negotiations.

Product overview

GRK Infra Oy is a diversified infrastructure construction company offering a unified portfolio of construction and maintenance services. The core offering comprises four main service lines: civil engineering and road construction (Taito- ja väylärakentaminen), rail business (Rataliiketoiminta), environmental technology (Ympäristöteknologia), and power business (Power-liiketoiminta). These are supported by specialized modules including railway maintenance, rail construction, railway systems, and metro electrical systems. GRK operates across Finland, Sweden, and Estonia delivering infrastructure projects ranging from roads, railways, tramways, bridges, and environmental infrastructure to data centers and industrial facilities. The company does not offer software products but provides physical infrastructure construction services.

Differentiator

Problem solved

Functional benefit

Products and services

• Civil Engineering and Road Construction (Taito- ja väylärakentaminen sekä päällystys)
• Rail Business (Rataliiketoiminta)
• Environmental Technology (Ympäristöteknologia)
• Power Business (Power-liiketoiminta)
• Railway and Safety Equipment Maintenance

Quantifiable outcome

• Record order backlog of EUR 883.1 million at end of Q1 2026, up 22% from year-end 2025
• +4 more outcomes

Named customers8 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

Feature3 records

Partnerships

Seven partnerships are on record, tiered core.

• AFRY Finland, Sweco Finland, WSP FinlandcoreImplementation/ SI/ Consulting Partner · 1 June 2026Design partners in Vaarala depot railway yard alliance with GRK, Kreate, and Metropolitan Area Transport Ltd.
• NRC GroupcoreStrategic or Co-development Partner · 19 May 2026Alliance partner for Turku Tramway project. GRK and NRC Group as contractors in alliance with City of Turku, with Ramboll and Sweco as designers.
• Stegra (formerly H2 Green Steel)coreStrategic or Co-development Partner · 18 May 2026Major customer for hydrogen and steel plant infrastructure in northern Sweden. GRK carrying out foundation and earthworks for the facility.
• Väylävirasto (Finnish Transport Infrastructure Agency)coreStrategic or Co-development Partner · 18 May 2026Primary government client for railway maintenance alliances (Kuura-allianssi, Ralli-allianssi) and numerous road construction projects.
• Kreate OycoreStrategic or Co-development Partner · 7 May 2026Consortium partner for Vantaa tramway eastern section construction. 50/50 joint venture for approximately 8.5 km tramway section worth EUR 280 million total (EUR 140 million per party). Also partners on Vaarala depot railway yard alliance.
• AFRY Finland, Sweco Finland, WSP FinlandcoreImplementation/ SI/ Consulting Partner · 27 November 2025Design partners in Vantaa tramway eastern section alliance. Responsible for engineering design alongside GRK and Kreate as construction parties.
• Fintraffic Raide OycoreStrategic or Co-development PartnerPartner in Kuura-allianssi (Uusimaa railway maintenance alliance) alongside Väylävirasto and GRK.

Scale indicators9 records

Recent moves6 records

Expansion highlights7 records

Broad incumbents

• Skanska: Global construction and infrastructure group with a strong Nordic presence including civil engineering, rail, and public-sector infrastructure. Larger and more diversified than GRK but competes for the same Swedish transport-agency mega-projects.
• PEAB: Swedish construction and civil engineering group with significant road, rail, and local-infrastructure operations across Scandinavia. Direct competitor on Swedish transport-administration tenders.
• NCC: One of the largest Nordic construction and infrastructure groups, with significant road, rail, and asphalt operations in Sweden and Finland. NCC previously owned the Kajaani asphalt plant business now owned by GRK Road, making it a relevant incumbent competitor across GRK's core segments.
• AF Gruppen: Norwegian contracting and civil engineering group with civil infrastructure, building, and energy segments. Comparable as a Nordic civil/rail contractor and a reference for regional infrastructure market dynamics.
• YIT: Finland's largest construction group with growing infrastructure exposure following the Lemminkäinen merger. Competes with GRK on Finnish road and urban infrastructure tenders.
• Veidekke: Norwegian-headquartered Scandinavian construction and civil engineering group with road, rail, and infrastructure operations. Comparable as a regional incumbent bidding on Nordic infrastructure work.

Direct peers

• Destia: Finland-based infrastructure construction company owned by Colas, focused on road, rail, and urban construction. It is one of GRK's primary Finnish competitors for Väylävirasto and municipal tenders.
• NRC Group: Norway-headquartered Nordic rail and infrastructure contractor with overlapping rail construction, track maintenance, and tramway capability across Finland, Sweden, and Norway. NRC Group is the closest direct competitor to GRK's rail and civil engineering footprint in the Nordics.
• Kreate: Finnish infrastructure construction specialist in bridges, railways, and urban construction, frequently partnering with GRK on alliance projects (e.g., Vantaa tramway, Vaarala depot). Closest direct competitor in the Finnish infrastructure market with comparable project type and bidding profile.

Others

• Infranode: Nordic infrastructure investment manager that owns and acquires essential infrastructure businesses; not a contractor, but a comparable investor-class counterpart evaluating Nordic infrastructure assets and platforms (e.g., referenced in the Triton/Lohkare Infra context).

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/grk.fi
• LinkedInlinkedin.com/company/13022867
• Instagraminstagram.com/grk.fi

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries9 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about GRK Infra Oy