GRK Infra Oy
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.
- Company typePublic
- Founded2020
- HeadquartersVantaa, Finland
- Headcount501–1,000
- GTM typeB2B
- OfferingServices
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.
GRK Infra Oy firmographics
Firmographics- 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
GRK Infra Oy industry classification
Industry- 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
Where GRK Infra Oy is headquartered
LocationHeadquarters
- HQ city
- Vantaa
- HQ country
- Finland
- HQ region
- Europe
Offices10 records
Markets served
GRK Infra Oy business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Supply Chain, Infrastructure, Marketing or Sales
Revenue model
- 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.
- 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.
- 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
| Model | Billing | Price |
|---|---|---|
| Other | Annual | Revenue guidance for 2026 |
Go-to-market motion2 records
Distribution channels5 records
Marketing channels6 records
GRK Infra Oy product offering
Product offeringCore 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
Companies that use GRK Infra Oy
Customer profileNamed customers8 records
Segments4 records
Ideal customer profiles3 records
GRK Infra Oy technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
GRK Infra Oy partnerships and signals
Strategic signalPartnerships
Seven partnerships are on record, tiered core.
- AFRY Finland, Sweco Finland, WSP FinlandcoreDesign partners in Vaarala depot railway yard alliance with GRK, Kreate, and Metropolitan Area Transport Ltd.
- NRC GroupcoreAlliance 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)coreMajor customer for hydrogen and steel plant infrastructure in northern Sweden. GRK carrying out foundation and earthworks for the facility.
- Väylävirasto (Finnish Transport Infrastructure Agency)corePrimary government client for railway maintenance alliances (Kuura-allianssi, Ralli-allianssi) and numerous road construction projects.
- Kreate OycoreConsortium 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 FinlandcoreDesign partners in Vantaa tramway eastern section alliance. Responsible for engineering design alongside GRK and Kreate as construction parties.
- Fintraffic Raide OycorePartner in Kuura-allianssi (Uusimaa railway maintenance alliance) alongside Väylävirasto and GRK.
Scale indicators9 records
Recent moves6 records
Expansion highlights7 records
GRK Infra Oy competitors and assessment
Company assessmentBroad 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
GRK Infra Oy social profiles
Digital presenceGRK Infra Oy financial estimates
Financial estimateRevenue estimate
Valuation estimate
GRK Infra Oy leadership team
Management profileNumber of profiles
Profiles6 records
GRK Infra Oy subsidiaries and ownership
Company hierarchySubsidiaries9 records
GRK Infra Oy funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
GRK Infra Oy M&A and investment
M&A and investmentM&A1 record
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about GRK Infra Oy
What does GRK Infra Oy do?
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.
Is GRK Infra Oy a public or private company?
GRK Infra Oy is a public company. It is classified as public and is currently operating.
When was GRK Infra Oy founded?
GRK Infra Oy was founded in 2020. It employs 501 to 1,000 people.
Where is GRK Infra Oy based?
GRK Infra Oy is headquartered in Vantaa, Finland, in the Europe region.
How does GRK Infra Oy make money?
Three revenue lines are on record. Infrastructure construction services are the primary driver. The others are concrete construction and industrial building and equipment rental and machinery services.
Who are GRK Infra Oy's main competitors?
Broad incumbents on record are Skanska, PEAB, NCC, AF Gruppen, YIT and Veidekke. Direct peers are Destia, NRC Group and Kreate. Infranode is listed as an others.
Does GRK Infra Oy have an API?
No public API is recorded for GRK Infra Oy.
What industry is GRK Infra Oy in?
GRK Infra Oy's product category is Infrastructure Construction Services. Its primary akta.pro industry code is IMAFAFAA, Railway Track & Civil Works Construction (Ballast, Slab Track, Alignment). Its NAICS code is 23731 and its SIC code is 1600.